Pemalite on 12 October 2013
| fatslob-:O said: If both DDR3 and GDDR5 had the same clocks and bus width i'd say never because the most fundamental difference is the fact that GDDR5 can do both read and writes at the same cycle compared to DDR3 which can only do either one of them at a cycle. |
Well of course if you keep everything equal, GDDR5 is going to be faster.
But you don't have to keep everything equal.
Microsoft could have wen't with 3ghz DDR3 on a 512bit bus and it would have been faster than the GDDR5 in the Playstation 4, unfortunatly however being a very cost sensitive device, it would have driven up the PCB layers, added more traces and probably required a more complex memory controller amongst other things.
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