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AMD Zen4 Ryzen upgrade but "shrink"! More than 4 cores do not run at 5.5GHz

via:快科技     time:2022/10/27 9:01:38     readed:92

AMD today released a new version of the AGESA microcode for the Zen4 Ryzen 7000 series, version 1.0.0.3. This is the first update since the launch of the new platform, but it is a bit of an update. Step backwards & throughout; .

The new version reintroduces the Precision Boost C-State Boost Limiter (PBO) limit that was previously missing from AGESA 1.0.0.2. When more than four cores are simultaneously under heavy load, such as rendering, large games, toasters, etc. The maximum acceleration frequency will be limited to no more than 5.5GHz.

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

A NopBench test on a fast Asus ROG CROSSHAIR X670E EXTREME motherboard found that the Ryron 9 7950X 16 cores could accelerate to around 5.7GHz using the 0046 and 0611 BIOS versions earlier.

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

However, upgrading to version 0705 BIOS based on AGESA 1.0.0.3 microcode,Only three cores accelerate to 5.7GHz, one to 5.6GHz, and the others hover between 5.4ghz and 5.5GHz.

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

Compare the blue and green curves in a graph to make it more clear:

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

There will be some performance penalty, of course, butIt should be due to the dual considerations of power consumption, heat and safetyAfter all, the entire core is at ultra-high frequencies and could be unstable or even damaged.

If you insist on multi-core high frequency, you can stick with the older BIOS.

Asus motherboard users can find it in the new BIOS.Medium Load Boostit” And turn it on, you can bypass the acceleration limit and continue to get multi-core high frequencies.

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

Take a look at the red curve below:

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

By the way, part of the motherboard can also be combined with BIOS constitution (see SP value level),Set the maximum acceleration frequency for each coreTo make the frequency of physical fitness run higher.

AMD Zen4锐龙升级却“缩水”!超过4核心 跑不到5.5GHz

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