There have been so many rumors surrounding AMD’s upcoming Zen 2 based Ryzen 3000 processors that it’s hard to tell what’s true and what’s not. We know with a degree of certainty that AMD’s next-gen CPU lineup will have 50% more cores compared to its predecessor and a higher IPC, though by how much, we don’t know for sure. A while back, it was being speculated that Zen 2 will have a 10-15% IPC uplift compared to Zen which is pretty impressive considering that in the case of Zen+, it was less than 5%. However, these are still unverified rumors, and a new leak suggests that the IPC gain won’t actually be that high.
Popular Twitter leaker, TUM_APISAK has shared an engineering sample of a 12 core/24 thread CPU based on the Zen 2 architecture via
Both these processors are 12 core parts with 24 threads, but the Zen+ based Threadripper has a higher boost clock of 4.3GHz while the speculated Zen 2 sample is limited to 3.35GHz. If the IPC of the latter was even 10% higher than the former than there wouldn’t be this kind of performance deficit, yet here we are. Even after the 12-core
Still, this is a synthetic test and that too of an engineering sample, but one thing you can be sure of is that the single core performance or the IPC won’t be increasing by 10-15%. A gain of 5-7% is more likely and practical.