| fallen said: Oops realized I made a mistake in the OP and forgot to include the triangle setup rates in the PS4 part of the table. Both PS4 and XB1 GPU have two triangle setup engines. However PS4's GPU operates at 800 mhz while X1's operates at 853 mhz. This means X1 can setup 7% more geometry over PS4. Updated OP to include. |
TSR is not a fixed value like it used to be old old DX and early dx10 cards, you aren't limited to 1 setup per clock with culling and you no longer need to cull half of the result to obtain a draw, modern GPUs (including those in the ps4 and xone) can handle a higher number and then be supported by additions shaders or compute to alleviate performance hits by overloading TSR, you can tesselate and have a shader generate the vertexes for you without using tsr, and with compute units (something the ps4 has more of) you can handle calculation of tessellation and draws on them, neither you nor I know the exact figure for how many triangles per clock the ps4 and zone can handle but even if we assume they're the same giving the done a slight advantage, the additional computation units offset this difference and the overall result is the same.
Besides, we do not have solid numbers for the ps4 final hardware, so our estimates of them using 800mhz stem from guesswork.
To put it bluntly though, the additional triangle setup capability you are guessing on is offset by the higher spec GPU, any additional benefit is shot down.
As a final note both Sony and Microsoft could increase their GPUs to 900mhz and CPUs to 2ghz if they wanted and the hardware would still be within its operational envelope, just running a bit hotter and louder.
