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UTKresh said: GDDR5 is not a cache. eSRAM is. to simplify it for you: its like an accelerator for the slow DDR3 ram. its a complete different solution to GDDR5. hardware architecture design is something we can not judge that easily. X1 may be ~40% slower out of the box, but that´s due to its different architecture mostly. due to its eSRAM-DDR3 architecture, the X1 needs cache optimization to perform well unlike the PS4. the first set of X1 multiplat games definitely showed this. wait for the second row of games. the gap will decrease. |
Both eSRAM and GDDR5 are used in the same way... there is no difference in use of eSRAM because it is not a cache... I think you are confunsing with the eDRAM found in 360.
You don't have a caching of data in eSRAM but instead you you it to write information that you need more fast than what DDR3 give you... to be fair all devs will try to use it to store the framebuffer if the game will try to reach 60fps... use the DDR3 to store a framebuffer for 60fps won't work for this gen... PS4 store the framebuffer on GDDR5.
