But, the 320 thread count is probably fake
Granted, this massive thread count might be legit, but there's nothing known about Granite Rapids that would indicate a massive change in Intel's hyperthreading technology would enable 320 threads on just 80 CPU cores.
You shouldn't be labeling any CPU-Z entry as FAKE, because that's not the case most of the time.
A more appropriate term would be "misleading", "incorrect", "inaccurate", since the CPU-Z software has
trouble reading data on this chip, because this a very early sample since it has a
"0" stepping.
Family 6 Model D has also being mentioned. So because of this very early nature of this chip, the software is having trouble identifying the exact specs of this ES SKU.
But in any case, as per this leaker, there are TWO 80 core chips here, and because of this the CPU-z is unable to recognize the two chips and hence it is listing the thread counts for both of them.
This is what has been claimed in this tweet.
"Two 80c, this dual channel has 320 threads"
View: https://twitter.com/yuuki_ans/status/1773306068879261872
So now based on the above tweet, the whole cache count also changes.
Two 336 MB pools of L3 cache for a total of 336 MB L3 cache per CPU, and two 160 MB pools of L2 cache for a total of 320 MB L2 cache per CPU. Combining them we get 656 MB of total cache ?
So the claim of 672MB of L3 cache is not correct.