NVIDIA Pixel Clock Patcher

[ToastyX]

(02-02-2022 10:22 PM)mycop Wrote:  Please help to understand.
I have SLI with two Fermi card. As i understand enabling SLI mode must remove HDMI pixel clock limit and cobine it, hovewer it not happened...
Also...even after PATCH i cant set 4k with 60hz. Only 30-40 is possible.
1. in sli mode pixel clock combined? (165+165, or 340+340 after patch?) What can be maximum in this mode? 600 possible?
2. Wich "CHIP" on video card answered for pixel clock? it is GPU or some other?
3. 4.2.2 or 4.2.0 is possible on fermi card? (it is surprise if not cause it was helpfull...)
4. it is possible to render 3d from nvidia and output from another card (nvidia\intel?)

SLI does not combine the pixel clock. You need HDMI 2.0 or YCbCr 4:2:0 to get 3840x2160 @ 60 Hz. Fermi doesn't officially support more than 165 MHz pixel clock or YCbCr 4:2:0, so you're lucky if you can get 30 Hz. YCbCr 4:2:2 should be possible at supported TV resolutions such as 1920x1080 @ 60 Hz.

The GPU is responsible for pixel clock limitations. Kepler could only do 540 MHz no matter what.

I don't know of a way to render on one GPU and output to another other than cloning the desktop with another monitor, but that would limit the resolutions to what's available on the rendering GPU.