Well, yes . But even that. How can devs use the power to its fullest?
Also I feel like this needs to be elaborated further, assuming the 36CUs are Polaris cores with 2.5x more efficiency, of course not necessarily reflected in all applications, what sort of ballpark would people put it in? =~ gtx 970?
The 2.5x efficiency refers to performance per watt rather than performance per CU (at a given clock speed). Polaris could end up being no faster at all than GCN1.0 - 1.2 on a per CU/clock basis. We haven't really seen any improvement at the performance per CU level since GCN first launched (other areas such as memory bandwidth use have improved significantly though). If Polaris has the same performance per CU and other elements as GCN 1.2 then the PS4K's GPU will fall closely in line with the R9 380x - probably a few percent faster. That puts it around the same speed as a GTX 770 in modern games at 1080p (GTX 970 is about 50% faster):
http://www.techpowerup.com/reviews/Gigabyte/GTX_980_Ti_XtremeGaming/23.html
Of course it could be any amount faster than that depending on how much, if any more performance Polaris brings at the per CU (and other basic elements) level.
Last edited: