| Intrinsic said: As i have also said earlier... memory bandwidth is also important. In the example you provided, if they checked the bandwidth used they would probably see that at 1080p the game ws also badwidth starved on that system. So dropping the rez, which also marginally drops its size in frame buffer allows it to fit with whatever mem bandwith the system had to give you better overall framerate gains. Even this loos example I just gave is very very very sparse cause as I said its never really that simple. You keep dropping rez to increase fps, eventually you get to a point where the bottleneck becomes the cpu or gpu. yu overcome that, then you get to a point where the bandwidth becomes the bottle nectk again. I just think your rpoblem is that you are attaching too much importance to something that isn't that power intensive to begin with. |
I have a 770 overclocked with more than 50% more VRAM bandwidth than the PS4 so memory bandwidth plus the heavily computation intensive TressFX enabled. This is the kind of performance difference you see from moving from 1080p to 720p
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