| petalpusher said:
(1 CU x 853 mhz x 64 ops x 2 cycles) x 12 is still the same than 12 CU x 853 Mhz x 64 ops x 2 cycles = 1 310 208 fl ops
A 72% increase would be this gpu at 1376 Mhz (and probably burn quickly) |
No. A GPU is parrallel. Therefore CU's can run independent of each other. I can have one CU running a job each clock cycle, and another running one job over 853 clock cycles. Because those each of those CUs will reduce the time to run an operation, the effect of those savings become accumulative. For example, @ 800GHz I wouldn't be able to run 1000 operations. This means it's capable of running 57 more operations.
PS4 1 CU @ 800MHz @ 943 operations per clock cycle
XB1 1 CU @ 853MHz @ 1000 operations per clock cycle
So, at the end of one minute.
PS4 1CU @ 800MHz @ 943 operations per clock cycle = 754,400 operations per minute.
XB1 1CU @ 853MHz @ 1000 operations per clock cycle = 853,000 operations per minute.
98,600 operations more. Or 105 more clock cycles to do the same amount of work. That's a 12% difference in performance right there. Not to mention, that's one CU.
