2024-03-18 08:21:34
This time, the M3 MacBook Air supports dual-screen output. Many people will definitely want to buy this machine and use it with an external screen. However, one thing to note is that a recent YouTuber’s actual measurement showed that when the M3 MacBook Air is used with the lid closed and used under high load for a period of time, The performance will be greatly reduced. In the worst case, the performance may be reduced by half, which is a huge difference.
M3 MacBook Air performance dropped by 50% with the lid closed!Foreign stress tests revealed
Recently, the well-known foreign YouTube channel Max Tech shared in a video that they found that after the M3 MacBook Air was closed and used for a stress test for a period of time, the performance was reduced by half compared to the open test.
Max Tech used 3DMark’s Wild Life Extreme for stress testing. The picture below shows that with the cover open, thermal throttling and frequency reduction will occur after about 6 to 7 minutes, resulting in poor performance. The stability is 73.2%, the Best loop score is 8,083, and the Lowest loop score is 5,916 points:
In the same environment but turned into a closed lid test, the stability became very low, only 52.1%, and the Lowest loop score was 4,198 points, which means that after running under high load for 20 minutes, the performance will lose nearly half, which is exactly the same as the MacBook Pro. different:
The reason for this situation is, of course, that the M3 MacBook Air does not have a built-in fan, so it becomes more difficult to dissipate heat when the lid is closed. Therefore, if you want to solve this problem, you must buy a dedicated radiator. Max Tech recommends a foreign Svalt brand radiator:
After installing the radiator and then conducting a pressure test, it was not as exaggerated as before. Even after 20 minutes, the performance was still quite good, even better than opening the lid, and the stability reached 89.7%:
Another way to achieve better heat dissipation is to install heat sinks yourself. This requires a bit of skill, so it is not recommended for ordinary people. It is more practical for ordinary people to buy an external radiator:
With the addition of a thermal conductor, the M3 MacBook Air can achieve better performance than the MacBook Pro, even under long-term load conditions. The 3DMark stress test measured stability as high as 99.5%, with both the highest and lowest scores breaking. 8,000 points:
So overall, for those who plan to buy the M3 MacBook Air, or are not very satisfied with the performance of this machine, they must buy an external radiator, especially if they want to cover the lid and use it with an external dual screen (or single screen) people.
Full video:
In addition to this test, Max Tech also measured an extremely high temperature of 114 degrees on the M3 MacBook Air a few days ago, which shows how important an external radiator is.
In addition, the M3 MacBook Air’s SSD read and write performance has been greatly improved this time. Even the cheapest 8GB unified memory and the most basic version of 256 SSD are much faster than the previous generation. Specifically, the Blackmagic disk speed test ran out It has a reading speed of 2,880 MB/s, which is far away from the 1,576 MB/s of the M2 MBA and returns to the level close to the M1 generation.
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