looncraz
Senior member
- Sep 12, 2011
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Well, don't we sort of know that Zen's die is quite a bit larger than just 2 CCXs?
My bet is on 192mm^2
Making a statements based on the binned top tier rx480 does not help your cause, though. What we really know is that at least first batches of rx480 had ridiculous variance, ranging from bearable to madly throttling.
The GTR is not top-binned, it's basically stock. My sample, in fact, isn't very good compared to what many others get - particularly with newer ones (the process has improved).
XFX RX 480 Black looks the same, but is higher binned, and the 'GTR' or 'Black' is often missing from the descriptions online, so the confusion is easily understandable.
Should fit about 10CUs and 8 RoPs... In line with last RR rumors, too.
Yes, but memory bandwidth is that by which graphics performance lives or dies. 50GB/s would be a major step up, but 10CUs at 1Ghz will saturate that with a thirst for much more.
Polaris 10 has 36 CUs and 256GB/s bandwidth - that's 7.11GB/s of bandwidth per CU. Polaris 10 is VERY bandwidth sensitive (though Vega may be less so given its new management and cache layout).
Assuming Vega is less sensitive, such that 7GB/s is enough to prevent a performance loss greater than the addition of a new CU, 8 CUs would be the sweet spot (albeit above the curve). Of course, if they are going to clock the thing at 850Mhz or so... 10 CUs would make sense.
Then again, AMD usually provides more CUs than the memory can handle on the APUs...