On May 30, Arm released a new CPU architecture: X925 super core, A725 large core, A520 small core (3nm version), and the new GPU architecture: Immortalis-G925/G725/G625 。
The expected "X5" is actually named X925. From this generation, Arm may unify the number code: X925 of CPU corresponds to G925 of GPU, and A725 corresponds to G725 . 2024 corresponds to the "2" in the middle of three digits, The next generation should be X935/A735/A530 G935/G735/G635？
X925 Super Core:
Code named Black Hawk, with 3MB L2 cache, special AI accelerator, and 80 TOPS computing power for a single top configuration core (73 TOPS for Snapdragon 8 Gen 3 NPU)
Claim GeekBench The single core performance is 36% higher than that of the flagship in 2023, and the AI performance is 46% higher than that of the X4 super core (However, the maximum frequency set by Arm is as high as 3.8GHz, while the super core of Tianji 9300 "only" has 3.25GHz, which increases the frequency by 17%, The IPC may increase by about 16%? On the energy efficiency curve, the peak power consumption is a little higher than X4, but the peak performance is 1/4 higher)
With 2 X925+4 A725+2 A520, the performance is only a little higher than that of the flagship in 2023. With 4 X925+4 A725, you can have 2.5 times the performance (Tianji 9300 is matched like this, but except for the super core X4, the rest of the cache is greatly reduced) ↓
A725 core: The core is to improve energy efficiency, including 1MB L2 and AI accelerator. Declare right Compared with A720, the energy efficiency is increased by 25%, and the performance efficiency is increased by 35%.
A520 (3nm version) : The architecture has not changed, Energy efficiency increased by 15% (TSMC: Arm, do you have any strange expectations for us?)
In terms of GPU, new architecture is announced The performance of the G925 is improved by 37%, the optical tracking performance is improved by 52%, the AI performance is improved by 36%, and the power consumption in popular games is reduced by 30%. Increase 49% in spirit and 36% in chicken (This is the result of 14 core G925 vs. 12 core G720... the latter is the scale of Tianji 9300)
Arm's reference design this year is very crazy: 2 X925 (double super core)+4 A725+2 A520 ， 16MB L3 (doubled), Immortalis-G925， 14 cores (12 cores in the previous generation)+4MB L2 (doubled), 16MB SLC (doubled).
This is the debut of 3nm Armv9.2 architecture CPU. However, it can be seen from the 15% increase of A520 (3nm version), Arm significantly overestimated the performance of the 3nm process On Apple A17 Pro and M4, the 3nm addition is less than 10%
According to the current information, Tianji 9400 is the second generation N3 process of TSMC, with one 3.4GHz X925+three X4+four A725 (the frequency may continue to be raised). This generation is "eating porridge", and all bets on X925 super core.
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