Zen4 IPC性能较Zen3提升25%，总体性能提高40%，乖乖？

这则信息的原始出处，是一个名为chipsandcheese的科技博客，原文地址如下，各位自行查看：

https://chipsandcheese.com/2021/02/05/amds-past-and-future-cpus/#comment-63

节选两段透露关键信息的段落：

Zen 4 is what a lot of people are waiting for, and, if the info I have is accurate, that wait will prove to be even more worth it. It is important to note that the one common thread in all Zen 4 chatter I have heard is resounding positivity. From IPC gains over 25%, a total performance gain of 40%, and even possibly (finally) 5GHz all-core thanks to the new (full node) N5 fabrication at TSMC! Now, I can’t say what is true and what is an over-exaggeration, however I was told from a trusted source that a Genoa engineering sample (Zen 4 server chip) was 29% faster than a Milan (Zen 3) chip with the same core config at the same clocks. Factor this in with what I have heard about the possible clock gains that N5 will enable over N7 and Zen 4 sounds like it is going to be a monster of a CPU.

Now I said I had Zen 5 info, unfortunately this comes from a different, less-proven source than my Zen 4 info, however they have said that the jump [to Zen 5 from 4] from will be about as much as Piledriver to Zen 1 design goal, which if you recall to earlier in this article was 40%. I was told from a 3rd source that Zen 5’s original design goal was 2.5 to 3 times the IPC of Zen 1 which roughly lines up with the perspective of a “Piledriver to Zen 1”-like jump.

然后我特意去查了一下推特，截了个图：

2021年1月才开的号，25个粉丝。。。

PS：我发这些倒不是说这则消息是假新闻，也许是因为刚成立，所以这个blog需要一些好料来提升下人气，但是在查看了数家IT网站的相关文章后，消息源都是这个blog，所以是不是真的暂且不说，先观察下没坏处。。。