DrMrLordX
Lifer
- Apr 27, 2000
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how is it possible for current x86 models (zen 3k, cfl, next icelake which is better) to reach the IPC of a13 while maintaining like 4GHz freq
I would assume that 256-bit vector processing is much faster on x86 hardware already since that really isn't a thing on mobile hardware. There are also scenarios where AMD's implementation of SMT in particular makes Zen2 much more attractive. For example, I can easily clear an MT score of 14000 in Geekbench 5 on a 3900x with clockspeeds sitting in, I dunno, the 4.2 GHz range? An A13 with 2 Lightning (2.66 GHz) and 4 Thunder (??? GHz) cores scores a measily GB5 MT score of 3400-3500 (varies). I have twice the cores and . . . I guess ~57% (or more) of the clockspeed of an A13, but better than 400% the MT performance. Take two A13s, jack up their clockspeeds by +57%, and you get an MT score of around 11k (hypothetically). Yeah my 3900x sucks power, but big deal. Let's see Apple scale that A13 up to a 95W TDP (or higher).
That ST score is scary, and the MT score may be more a result of throttling than anything else. So A13 deserves a lot of credit. Just not all the credit.