15% IPC boost is mildly disappointing.
It will be significantly slower in ST than M4, and even more so against the M4 Pro/Max.
It will be significantly slower in ST than M4, and even more so against the M4 Pro/Max.
AMD claims +35% IPC improvements in that specific benchmark, due to improvement in the AVX512 pipeline.
Overall GB6 improvement is likely around 10-15% only because that's how much IPC improved while clock speed remains the same.
The real issue is that most code people run doesn't use very much SIMD and even less uses AVX-512.
It's disappointing because M4 is significantly ahead. I would expect Zen to make a bigger leap to catch up.
Also, this small leap opens up for Intel's Arrow Lake to take the lead.
This difference in efficiency cannot be explained by node advantage alone as N3E vs N4 is probably around only 15-20% more efficient.