[ad_1]
Apple's most powerful MacBook Pro may have a cooling problem, but the responsibility for the throttling of Core i9 may not be entirely attributable to the Cupertino company. The 2018 MacBook Pro is offering for the first time a six-core Core i9 processor, one of Intel's fastest processors, and has instantly become an object of desire for those who want performance of the station. work from a portable machine.
However, the power is not badured in isolation, and there are inherent challenges in setting up an office-clbad treatment in a slimline notebook. Most often, it means heat. Like everyone who has heard the fans in their laptop get close to turbine levels, and have felt the uncomfortable warm underworld, be aware, the challenge of every laptop is facing the heat. This, according to early reviews of MacBook Pro, is a challenge that the new Apple machine can not handle as well as we hoped.
YouTuber Dave Lee first raised concerns. He discovered that the Core i9 version of the 2018 MacBook Pro was facing serious problems while running the Adobe Premiere video editing application. Far from offering a big performance boost over the old laptop, Lee found that the new laptop was quickly starting to get very hot, then slowing down its processor considerably. Indeed, he found that the chip could not maintain its base clock frequency of 2.9 GHz, instead of 2.2 GHz on average under load.
[1945900319459005TheproblemiswhatiscalledthethermaldesignpointorTDPIt'sIntel'sestimateoftheamountofheatdissipatedbyitsprocessorswhentheyoperateattheircoreclockfrequencywithallcoresbeingactiveandsubjecttoaworkloadhighAhigherTDPusuallymeansmoreperformance-sincefastercoresgiveoffmoreheatasaby-product-butalsorequiresmoreprovisionforcoolingA weak TDP processor, for example, means that the Apple 12-inch MacBook can be fanless: the ultraportable can dissipate the heat of its processor by pbadive methods, but it also means that the Laptop performance is relatively conservative. A high TDP processor, meanwhile, requires active cooling. This usually means a combination of heatsinks and fans, although performance-oriented laptops for gaming and other high-demand activities can also use heat pipes, liquid cooling, and other increasingly complex methods. .
When designing a laptop, a balance must therefore be found between design, aesthetics and cooling. Large cooling systems can handle larger TDPs, but also larger and less portable laptops. Thinner models, on the other hand, may be struggling with these higher TDPs. An important suggestion regarding the new MacBook Pro, therefore, is that its cooling provisions simply did not live up to the highest performance of the Core i9. The disbadembly of the new notebook seems to show that the design is about the same as for the older and slower versions.
The blame, however, can not be placed at the feet of Apple, at least according to the latest theories. The design of the current MacBook Pro was unveiled for the first time in late 2016, but will have been in development for several years before that. Apple will have worked with Intel on the amount of cooling needed for its laptops to perform at peak performance.
However, that depends on Intel's roadmap for its processors, and that's where some have suggested that things have been tough. Intel has had some widely reported difficulties in getting its chips to the size that it initially promised, with its transition to 10nm processes taking much longer than originally planned. It also means that the TDPs that he was aiming to achieve – and the TDPs with which Apple has no doubt designed the cooling of the MacBook Pro – simply have not been realized.
As a result, the Core i9-8950HK that Apple offers on the MacBook Pro 2018 has a TDP of 45 watts. This, however, is only when it runs at its regular clock frequency of 2.9 GHz. Pushed further, Turbo Gost 4.8 GHz clock, and you will get a lot more heat.
The Core i7 chips that Apple also offers have a TDP of 45 watts. However, their Turbo Boost speeds are lower, suggesting less heat.
The question, therefore, is how much heat during Turbo Boost Apple, and which largely relies on what type of TDP and beyond that Intel told the Cupertino firm was realistic about the roadmap. Adding to the situation is the fact that the 15-inch MacBook Pro shares its cooling system between the processor and the GPU. This means that in situations where both chips are stressed, there is more chance that the cooling is exceeded.
When this happens, the laptop automatically throttles its cores for security and stability. All you can see depends on the type of tasks you expect from your laptop. If you use video editing applications such as Adobe Premiere, for example, you will attack both the CPU and GPU, and you may be more likely to experience thermal problems.
If, however, you are using applications that focus on the processor, you might not have such a problem. Geekbench performed a custom stress test with its benchmark tool on a Core i7 version of the MacBook Pro 2018 and found that "even with a sustained load, the i7 processor was running at 3.0-3.1 GHz, well beyond above the base frequency of 2.6 GHz processor. "It's because the Geekbench application only uses the processor.
It seems unlikely that anyone on the market of a MacBook Pro – especially the new Core i9 configuration, which starts at $ 2,799 – would not be familiar with the idea of a slowing down the computer when it is under significant load. All the same, the notebook carries his performance numbers clearly on his sleeve. The clock frequency of 2.9 GHz and Turbo Boost 4.8 GHz are flagship features, after all.
There are some ways that Apple could work to at least partially solve the problem. For starters, it is possible for cooling fans to rise faster, working to dissipate more of the heat before the system reaches the point where it needs to slow down. Alternatively, it could tinker with the maximum temperature settings, allowing the CPU to stay warmer before throttling, or to adjust the way the Turbo Boost works.
It is unclear how each of these changes can affect cooling, system performance, or battery life. What's more significant, however, would probably require hardware changes that would seem, at least right now, beyond the scope of what Apple would like to try.
Certainly, however, it is something that the company must think about. This is not the first time that the heat load has raised its head as a challenge, after all. In 2017, Apple executives conceded that they had placed their bets on the wrong horse when it was Mac Pro, thinking that when the cylindrical workstation was designed, the Graphical industry would follow a trend of several GPUs. Instead, these are large, simple GPUs that have become popular, but with which the Mac Pro cooling system simply could not keep up.
For the moment, Apple is freezing on the issue of cooling Core i9. Firmware updates to manage how processor overclocking is handled might arrive in a timely manner. For potential buyers, keep in mind the thermal realities when you want a performance laptop that is also portable seems reasonable, not to mention knowing exactly what you want to do with your new mobile workstation. This is a thought process that most business users probably did not expect to do, and that proves that life on the cutting edge rarely goes well.
Source link
