Hello, this is Techmong. The product I will be reviewing in this video is the LG Gram Pro right here. To be honest, when I first received the LG Gram Pro, I thought it was just a design update with a significantly higher price. However, when I considered the graphics card, I realized that this could be a serious issue if not done right. But as always, let me get straight to the conclusion: LG Electronics has really put a lot of effort into making this Gram Pro, and they have done an excellent job. 

The design, thickness, weight, performance, heat management, speakers, keyboard, battery, and software have all been upgraded. Of course, the Gram Pro is a bit more premium than the regular Gram, so the starting price is also a bit higher. However, once it officially goes on sale, I believe LG will offer substantial discounts, so I won't go into detail about the price in this video.

Many people are curious about the graphics card and some other details, so I asked why LG made these choices, and I received detailed answers. In this video, I will show you all the results of my tests along with the responses I received from LG without any omissions. You can see the length of the video; I really put in a lot of effort to analyze the product and create this video. If you're interested in the LG Gram Pro, I would appreciate it if you could watch until the end and give your feedback.

First of all, LG has released a new laptop lineup called the Gram Pro, so let me organize the lineup for you. For the year 2024, LG Gram features the Gram 2024 line, which has changed the CPU to the Intel Core Ultra Processor from the previous Gram model. There is also the Gram Pro line, which is much thinner and more luxurious than the standard Gram, with a complete internal redesign that enhances performance.

The Grand Pro 360 line features a base with a 360-degree rotating hinge, allowing for screen touch functionality and even fan use. Since the Grand Pro 360 is based on the Grand Pro, I will provide detailed information about the Grand Pro, which many of you might be curious about in this video. The Grand Pro is available in 16-inch and 17-inch models, and I will explain based on the 16-inch model. As you can see, it comes in white and black colors. Personally, I prefer the black one a bit more, but many people associate the Gram with the white color, so I will mainly show the products in white. Looking at the white color of the Gram, it appears to have a warmer tone compared to before. In the past, there was a cooler-toned white, but this time, the warm-toned white has a much warmer appearance.

The weight and specifications remain the same, but when I actually weighed it, it turned out to be a bit lighter, and the thickness has really decreased. Especially, the integrated graphics card is thin, but the external graphics card model is surprisingly thin and light. I wondered how it could manage heat properly and deliver good performance, but you'll be amazed when you see the results later. I will cover the performance aspect in detail shortly, but first, let me mention a few more noticeable design features. I just said that the MacBook Pro has become really thin, and I was curious about where they managed to reduce the thickness so much. Upon inspection, I found that they significantly reduced the thickness of the display. When I first saw the thickness of the MacBook Pro's display, I wondered if it had an OLED display; how could it be so thin?

얇지 싶었는데 제가 리뷰한 제품은 OLED가 아니라 LCD입니다. 그리고 자세히 보시면 예전 그램은 화면 디스플레이 표시부를 둘러싸고 있는 하우징이 많이 튀어나왔고, 테두리 부분도 한 번 더 튀어나와 있었습니다. 게다가 카메라 부분에 홀도 뚫려 있어서 미관상 아쉬운 점이 있었습니다. 그런데 이번 그램 프로는 디스플레이 하우징이 튀어나온 부분이 많이 줄었고, 테두리가 튀어나오는 것도 거의 없으며, 카메라 마감 부위도 훨씬 깔끔하게 마감되어 디자인 완성도가 많이 높아졌습니다. 그리고 간혹 디스플레이 부분이 무겁고 흰 부분 튜닝을 제대로 하지 않으면 한 손으로 커버를 들었을 때 안 열리는 제품들이 있긴 하지만, 그램은 예전 제품이나 이번 제품이나 한 손으로 올렸을 때 둘 다 잘 열립니다.

The cover opens very well. However, as the display has been made thinner, the internal structure has changed a bit, and the connection point between the display and the device has also been altered. As a result, the width of the housing visible at the bottom of the display is slightly wider than before, making the product a bit larger. Now, having looked at the display's exterior, let's also take a look at the display specifications. The resolution, based on the LCD version, remains the same as the previous model, with WQXGA. The anti-glare treatment continues to effectively reduce light reflection. However, this new Grand Pro has significantly improved compared to its predecessor, with a refresh rate upgraded from 60Hz to 144Hz. The display brightness has increased from a specification of 50 nits, and when measured, it actually exceeds 100 nits. Therefore, the display appears much brighter to the eye.

As you may feel, a higher screen refresh rate makes the display much smoother. The difference between 60Hz and 144Hz is significant, not just when working on simple documents but also while gaming. However, if you know a bit about computers, you might think that to truly experience 144Hz, the game frame rate needs to exceed 144 frames per second. But the Gram's performance isn't quite at that level, is it? So now, I will talk in detail about the performance of the LG Gram Pro, which many of you are curious about. Here are the specifications of the product used for testing. When you look at these specs, you might wonder, What is this? Why is it using the RTX 4050 instead of the 350? I asked LG Electronics about this, and they mentioned that they really wanted to use the RTX 4050, but they just couldn't get the angle right.

It is said that the 450 has not been released for ultra-lightweight laptops in small packaging. So, when I asked if we could use the 450 as it is, even though the chipset size is a bit larger, LG replied that they had indeed considered it. To put it simply, if we include the RTX 40, the laptop would become significantly thicker, heavier, and much more expensive. I was curious if that was really the case, so I looked for laptops of a similar size that are equipped with the RTX 450, and they are indeed heavier and thicker, with generally lower battery capacity, as most of them are gaming laptops. When I found one that was a bit lighter, it turned out to have a slightly smaller screen size of 14 inches compared to the Gran Pro. Therefore, instead of incorporating the RTX 4050 into the Gran Pro, LG Electronics has increased the adapter capacity of the Gran Pro external graphics card model and upgraded the cooling system to improve performance. But then, is it really...

Let's find out how well it actually performs. By the way, my previous model only had an Intel Core i5 and an integrated graphics card, so it may not be the best comparison. However, I will also share the test results of this product for your reference. I wanted to get a model with 16 GB of RAM, but I couldn't, so in this video, I will exclude graphic tasks like photo or video editing, which are heavily influenced by RAM, from the testing items. Additionally, please note that the test results I will show you are not from a fully optimized production model. Now, let's take a look at the test results based on Cinebench R23, which is a benchmark loved by many in laptop testing. The results came out like this. However, since this was the initial test, I ran it for 30 minutes and checked the scores again; the scores did drop slightly.

The Cinebench tests the CPU performance, and it might seem strange that models with dedicated graphics cards perform better than those with integrated graphics. However, if you've been watching my videos regularly, you would know that the cooling system of dedicated graphics cards is much better than that of integrated ones, allowing for better heat management. Most people are aware of this. So, after revealing a bit more about this secret, I thought I should run more benchmarks. Let's take a look inside the product. First, as I try to open the internals, I noticed that the design of the under-cover has changed significantly. The way the bottom is supported has been altered. In the past, there were two small supports at the front of the laptop in the under-cover, and at the back, there was a rather high ledge that extended long.

There was a reason for that. So, when the chin is long like this, it can be raised higher off the floor when placed down, which is better for drawing in air to heat the product internally. However, this part tends to get dirty easily, and aesthetically, it wasn't very pleasing. But this time, the support structure has been changed in the same way at both the front and back. By making this change, the weight of the under cover becomes much lighter. You can see that the under cover of the Grand Pro is lighter even though it has more internal support structures. Additionally, the holes on the back panel for air intake have also become much larger. Now, let's take a look inside the main body. The structure you are seeing now is from the internal graphics card version from last year, 2023. As you can see, there is one heat pipe for heat transfer, and it is responsible for heating.

The cooler is also one here. If you purchase an external graphics card version, an additional cooler will fit into the empty space, and a heat pipe will be stored as well. This will increase the weight and make the price higher, while the adapter capacity remains at 65W. In fact, it's quite difficult to create a dramatic difference between the integrated graphics card and the external graphics card. However, the Gram Pro has significantly improved its cooling system starting from the integrated graphics model. Last year's regular Gram had one heat pipe and one cooler, but now the length of the heat pipe has increased significantly, and there are two coolers installed. Initially, I thought the Gram Pro was just a slight tuning of the original Gram, but this has actually been completely redesigned. And the Gram Pro...

내장 그래픽 카드 모델이 있고 외장 그래픽 카드 모델이 있으니까 서로 두 개를 비교해 보니까 외장 그래픽 카드 버전은 내장 그래픽에 비해 빈 공간에 외장 그래픽 카드가 들어가고요. 그리고 주변에 열이 많이 발생하는 회로들 때문에 쿨링 시스템이 좀 더 보강되어 있습니다. 조금 더 자세히 보면, 쿨링 팬의 블레이드 개수도 외장 그래픽 카드 버전이 훨씬 많고, 쿨링 팬의 두께도 외장 그래픽 카드가 훨씬 두껍습니다. 게다가 히트 파이프의 두께도 정말 많이 차이가 납니다. 확실히 외장 그래픽 카드 버전이 소비 전력이 더 많이 소모되는 만큼 쿨링 시스템에 조금 더 신경을 썼습니다. 그리고 내장 그래픽 카드와 외장 그래픽 카드의 차이를 보니까 외장 그래픽 카드 모델이 배터리 용량이 좀 더 많습니다. However,

The overall size seems similar, but the thickness of the battery in the external graphics card version is thicker, and it is also heavier. Looking at this, it is surprising that the external graphics card model has become much heavier than the integrated graphics card model, considering that the weight difference is not even 100 grams. Additionally, when comparing integrated graphics cards, isn't it impressive that the MacBook Pro, which has been upgraded internally, is still lighter? Furthermore, in terms of performance-related aspects, the speaker module has been significantly upgraded compared to the previous version. The SSD slot is designed to have one basic slot like the previous version, with the option to add another one. As for the RAM, it is onboard, so it cannot be replaced or upgraded, but the RAM clock has improved significantly.

It's gone up. Now that we've checked the CPU performance with Cinebench and looked at the internal structure, we need to find out how much the graphics performance has improved and how much the gaming performance has enhanced. Recently, when testing graphics, the most commonly used tool is 3DMark's Time Spy, and after testing with it, the score has really increased—more than double! Wow, so I thought this Intel CPU was really well-made. However, when I looked at the scores, there was something strange. The difference in benchmark scores between the integrated graphics model and the dedicated graphics model is almost nonexistent. But for those who have been consistently watching my videos, you will understand why the scores are like this. I conducted benchmark tests with both the integrated graphics and the dedicated graphics models.

When comparing, I always mention that if it’s the same integrated graphics card, it makes sense to look at the difference in scores between the two. However, if one has an integrated graphics card and the other has a dedicated graphics card, comparing their 3DMark scores is truly meaningless. Let me prove once again why that is meaningless. I will show you the game test results. Oh, but before I show you the game test results, let me mention one thing. The product I have is a practical one, and the CPU temperature values read by the temperature sensor are a bit abnormal. It fluctuates around 40 degrees Celsius every second. So, I think the temperature sensor might be broken. It seems strange, so later I will also show you the temperature I measured on the keyboard using a thermal camera. First, let’s run League of Legends, which many people play. In fact, whether it’s the integrated graphics card version or...

Since this game is more influenced by CPU performance than by the version of the external graphics card, I was curious to see if the differences between integrated and external graphics cards would show clearly, and they did. First, when I set League of Legends to the highest settings and started playing, I was surprised to see it exceed 200 frames per second. However, this was based on my individual testing. When I actually played the game during the laning phase and during team fights, I noticed that the frame rates did drop a bit. But as you can see, it still manages to deliver very good frame rates. During regular laning, it maintained over 150 frames per second at the highest settings, and even during intense team fights, it stayed between 120 and 140 frames per second without any stuttering. I was really impressed, especially considering that I have a 1.2 kg portable device.

I wonder if I'm really reviewing the LG Gram laptop because the frame rate is outstanding. Especially with this new Gram Pro, the refresh rate has significantly increased, and you can really feel the difference when playing games. Of course, what I just showed you is based on the model with a dedicated graphics card, and while the performance of the integrated graphics card model has improved a lot compared to the previous version, there is still a noticeable performance gap when compared to the dedicated graphics card. If you only look at this, you might think, Well, I know dedicated graphics cards perform well, but at that level, wouldn't it be enough to just get a model with an integrated graphics card? However, as I mentioned earlier, League of Legends is a game that relies heavily on CPU performance rather than graphics card performance. When you move on to more demanding games, the difference between models with dedicated graphics cards and those with integrated graphics cards becomes even more pronounced.

Let's switch to Overwatch 2, a game that is slightly more demanding than League of Legends. Can a Grand Pro effectively utilize a 144Hz monitor to achieve 144 frames per second in this game? To get straight to the point, yes, it can achieve close to that. However, this is based on the training grounds; during actual gameplay, the performance does drop a bit. Still, as you can see, even in real matches, it manages to produce frames quite well without any stuttering. Although I set the game options to low, I did set the resolution to the maximum and the rendering scale to 100%. Recently, Overwatch 2 has undergone several patches that seem to have increased the performance requirements compared to the previous version. Considering this, achieving such performance is surprisingly impressive. It is clear that the graphics card is more capable.

As an important game, League of Legends consumes almost 30 watts of power from the graphics card. However, in Overwatch 2, you can see that the power consumption from the external graphics card is almost close to 45 watts. The old general Gram, which used a 65-watt adapter, would drop to around 20 watts of power consumption with just a little load. But this new Gram Pro, with the external graphics card model, maintained a power consumption of 45 watts even after running for an hour. Now, let's test it with a much more demanding game. Recently, the hot title has been Hogwarts Legacy. Initially, I thought it was pointless to try running Hogwarts Legacy on such an ultra-lightweight laptop, as I doubted it would even run properly. After all, Hogwarts Legacy is typically a game played on gaming laptops. Yet, this laptop manages to handle that challenge.

It's not just about getting through; it defends above 60 frames per second. It's especially important that there are no stutters, which are far more critical than the average frame rate. To check for these stutters, you can look at the 1% low or 0.1% low values, and if you see now, it defends quite well. You can immediately notice the difference if you run this on an integrated graphics card model. Currently, the integrated graphics card model has frame rates as low as 40 frames or even 30 frames, and the 1% and 0.1% frame rates come out really low, making stuttering quite noticeable during actual gameplay. However, it is quite impressive that you can run something to this extent on an integrated graphics card. This is because, in the previous year's model, the 2023 Gram, the frame rates were much lower than this. So if you've seen this far, you can definitely say that this Gram is really impressive.

The professional external graphics card model has great performance, but you might be wondering how this is possible. There should be some trade-offs, right? In that regard, there is something to note. In the Grand Pro external graphics card model, you can select the maximum performance mode in the performance options. When you use this, the internal fan spins very quickly, which increases the noise level. However, this is typical for gaming laptops or portable laptops when they are under heavy load. Additionally, the size of the adapter has increased, making it a bit heavier as well. So, while the Grand Pro may produce some noise, it is designed to allow users to experience true high performance when switched to maximum performance mode. Now, the important thing is...

This time, the Gram Pro managed heat very well. When I showed you the cooling system earlier, you might have expected that the Gram Pro would manage heat effectively. However, after running a game for an hour, I checked the temperature in the keyboard area. In the past, the temperatures were quite high in the center and left areas for gamers, but now the highest temperature is not in the center but has shifted to the right, where your hands don't usually reach while gaming. The peak temperature has noticeably decreased compared to the previous model. The temperature in the area where your hands most often rest while gaming does not exceed 40 degrees. Even with the improved cooling system and the hot air being expelled from both sides, achieving this level of heat management in such a thin and lightweight laptop is truly impressive. Now, regarding the performance aspect, it is sufficient.

I think I've mentioned this before, but now I want to share with you some significant changes beyond performance. First and foremost, let's talk about the keyboard. To summarize my evaluation of the keyboard, it has really improved. The typing feel of the keyboard is important; just a few years ago, the most crucial aspect of the keyboard was how deep the key travel was. However, recently, as laptops have gradually reduced the stroke length, manufacturers have been adjusting the rebound force and the pressure needed to press the keys, significantly enhancing the typing experience. Finally, this technology has been applied to the LG Gram Pro. When comparing it to the previous Gram model, the 2023 Gram had a deeper stroke, but the typing feel was quite light and lacked a bit of rebound. However, this new Gram Pro...

The length of the stroke has decreased, but the rebound has improved significantly, resulting in a really good hitting feel. In the 2023 version of the Gram, there was a sliding sound when pressed, but in the Gram Pro, it makes a tick-tick-tick sound. When you actually use it, the tactile feedback has become very lively. It seems that they were able to reduce the thickness of the product even more thanks to this reduction. Give it a try. Oh, and regarding the keyboard part, I was really impressed by this aspect of the Gram Pro overall. In a previous video about the regular Gram, I mentioned that it would be nice to remove some of the less frequently used features like the security key, airplane mode, and diary mode, and instead include a function key that can always be used. I also suggested adding a performance adjustment feature that allows for immediate adjustments.

I improved every aspect, exactly as I said. If you look here, we have the function lock feature that allows you to use the function keys first. I've also added the performance adjustment function keys right here. We removed less commonly used features like airplane mode and reader mode, and instead included useful features that are often used during meetings, such as the microphone mute button and the camera off button. As a tech YouTuber, I truly appreciate these enhancements. The person in charge of the LG keyboard has really put in a lot of effort. Next, let's talk about the speakers. They have improved significantly compared to the previous model. It seems that the speaker unit itself has grown, which makes a big difference in the bass. In the past, voices felt like they were coming from far away, but now that sensation has completely disappeared, and the bass sounds much deeper.

It has improved a lot, and the overall sound quality of the speakers has become excellent. However, when I first tested it, I felt a bit disappointed that the volume itself didn't go up much. I think the basic settings are somewhat incorrect for my product. There is an app called Dolby X among the Gram programs, and when you go in there, the default setting is set to music. However, this music setting has a very low basic volume. If you switch it to dynamic mode or run another preset, the volume increases by almost 1.5 times, and the sound becomes very rich. I think dynamic mode should be set as the default when it launches. The next part I want to explain is about the battery, which is as important as weight, thickness, and performance in a portable laptop. In fact, this Gram Pro model with a dedicated graphics card has a battery...

The model with a 90W integrated graphics card has a battery capacity of 77W, which is slightly reduced compared to the regular Gram. However, the screen refresh rate has increased significantly to 144Hz, and the screen brightness has also improved. I was a bit concerned about the battery life, but let me get straight to the point: the battery life of this Gram Pro is absolutely amazing. The regular Gram was already known for its long battery life, but the Gram Pro equipped with the Intel Core Ultra processor is even better. 

I tested it under conditions that were much harsher than normal usage, with the screen brightness set to maximum while continuously playing videos. The result was that the Gram Pro, especially the model with the integrated graphics card, could play videos for much longer than the regular Gram. However, during the testing of the model with the external graphics card, I encountered repeated errors, so for now...

First, I compared the battery performance of the built-in graphics cards. The Gram Pro definitely lasts much longer than last year's Gram. I mentioned that this is based on maximum brightness. The Gram Pro has a maximum brightness that is over 100 nits brighter than the standard Gram. This means that the Gram Pro was tested under much harsher conditions than the standard Gram, yet the battery lasted significantly longer. 

At this point, you might be wondering how the battery difference would be if we set the brightness to the same level. So, I conducted a battery test set at 250 nits, which is a level that works perfectly for indoor use. The results showed that the Gram Pro model with the integrated graphics card lasted a whopping three hours longer than the standard Gram, allowing for an incredible 14 hours of video playback.

This was possible, and those who know a bit about laptops will understand how amazing this is. If you just look at the results, you might think that last year's standard Gram has a battery life that is just average or short. However, I did a battery test on the Gram last year, and I checked the battery test criteria at 50% brightness. At that time, other laptops managed to run videos for maybe 10 hours at most, while the Gram ran videos for 16 hours on its own. So, the basic Gram in 2023 also has a really good battery life, but this time, the Gram Pro has significantly increased battery usage time compared to that. Looking at this, it’s clear that the Gram and LG, along with the new Intel Core Ultra processor, have excellent power efficiency. However, there are some unexpected results that came out differently than anticipated.

One strange point is that I thought external graphics card models with larger battery capacity would last longer than integrated graphics cards. In fact, LG also mentioned that, on paper, they last longer. However, the external graphics card model I have is a sample product, and during testing, it encountered errors or completed tests in a surprisingly short time. I think we need to test it again with the mass-produced version. If the mass-produced external graphics card model lasts longer than the integrated graphics card model, then this Grand Pro will truly have an exceptional battery performance. Now that I've explained most of the important hardware aspects, I noticed that LG has also put a lot of effort into the software this time. So let's take a quick look at that as well. First of all, the Grand Pro...

Basically, the Nearby Share feature is set up in such a way that you can easily transfer files between Android smartphones. If you want to exchange files with your phone, you can conveniently use the Gram Link. This time, the Gram Link includes features that LG laptop users have really wanted. With the LG Gram Link, you can significantly enhance connectivity with mobile devices. For example, there is a mobile mirroring feature that allows you to mirror the screen of your smartphone directly onto your laptop. There is also a function that allows you to use a tablet as a secondary monitor for the Gram. Additionally, there is a keyboard and mouse sharing feature, which lets you move the mouse seamlessly between different operating systems, such as Windows and iOS or Windows and Android, while maintaining the distinct operating systems. This functionality is also included in the Gram Link.

The laptop definitely had some shortcomings in terms of software, but with the creation of the Gram Pro, they have put a lot of effort into the hardware as well as the software. However, the product I have is a test model, so the keyboard and mouse sharing function doesn't work as quickly as I expected. But I think we can expect that by the time the mass-produced version comes out, it will be much better updated. Now, I’ve explained almost everything important, and I just want to add a few additional details. The configuration of the input and output ports is like this; although I don't use them often, the Kensington lock port and the micro SD card slot are gone. Also, the front camera is not just a simple camera for meetings; it supports Windows Hello facial recognition, which adds a lot of convenience.

Alright, however, since facial recognition is included, the fingerprint sensor has not been integrated. This time, the Grand Pro has received the Intel Evo Edition certification, which is awarded only to high-performance models with excellent portability and functionality, for both the built-in graphics card model and the external graphics card model. Considering the thickness and weight of this product, I truly believe it deserves this recognition. Lastly, the Intel Core Ultra processor equipped in this LG Grand Pro has a separate MPU that can be used when utilizing the device's own artificial intelligence functions. So far, using this MPU, there isn't anything particularly remarkable, apart from applications like Stable Diffusion, that can be felt in a significant way. Therefore, I believe this is more of a technology for the future, and I won't go into detail about it in this video. So, this concludes my analysis.

This time, it was the LG Gram Pro. Honestly, when I first saw the Gram Pro, I was quite skeptical. I thought, of course, being a pro model, it would naturally be more expensive than the regular Gram. And what about the RTX 350? I was also concerned that a few months later, they would release the RTX 4050 Gram Pro. I thought, maybe I shouldn't review this. However, the price announced by LG on January 2nd at 8 PM on LG.com was truly impressive, with great benefits prepared. I also learned about the development process and why they couldn't include the RTX 4050. More than anything, after examining the Gram Pro closely, I genuinely felt that LG had put a lot of effort into creating this product. So, I wanted to elaborate on this in detail.

I have started producing a video, so this is a completely different model compared to last year's Gram. It's not just a minor change or a simple reassembly. The thickness is much slimmer than the previous Gram, and it is also lighter in weight. The design has become significantly more attractive, and the cooling system has improved a lot, effectively managing heat. The speaker performance has been greatly upgraded, and the keyboard experience has also improved. The battery performance has increased to an incredible level, and even the software has seen substantial upgrades in just one year. Of course, I understand that even if I show everything, prove, analyze, and explain it, some people might think, Well, it's just an advertisement for Techmon. I know there will be those who say that. However, I can confidently say, putting my name on the line, that this new Gram Pro is truly well-made.

It's a portable device with a display size of 16 inches, weighing around 1.1 to 1.2 kg. When comparing it to other portable laptops in the mid to late 1 kg range and those around 2 kg, I find it hard to comment on performance, like how the RTX 40 performs. However, I am genuinely satisfied with this product. I feel like I've done everything I needed to do at this point. The only thing left is to see how the product will be priced on January 2nd. I hope LG will set a good price. Lastly, I hope they will also provide software updates to ensure that the final production model is even better. I wish that 2024 will bring great results for LG, as they have worked hard on their laptops. That's it for this video. If you have any questions, please leave a comment. If you liked the video, I worked hard on it, so please subscribe and like.

LG가 진짜 자신있다길래 제대로 파헤쳐봤습니다. LG 그램 프로 상세 리뷰 (성능, 배터리, 발열까지 다 알려드림)

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LG가 진짜 자신있다길래 제대로 파헤쳐봤습니다. LG 그램 프로 상세 리뷰 (성능, 배터리, 발열까지 다 알려드림)

LG가 진짜 자신있다길래 제대로 파헤쳐봤습니다. LG 그램 프로 상세 리뷰 (성능, 배터리, 발열까지 다 알려드림)

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