For desktops: multiple gpu x1 risers can't be used for gaming. Cf requires at least x4 and sli requires at least x8. You don't want to use a x1 riser because of the bottleneck from x1 (also mpcie for laptops bandwidth) which can result to up to a 50% performance decrease from the gpu.
Can you use a PCIe riser for gaming?
I was originally looking at just riser cables, but even the short ones get expensive fast. I found some mining PCI-e to USB 3.0 cards like this that looked promising. I found a YouTube vid that showed that this could limit performance by 20-50%, but this is ok, as long as the game runs.26 Aug 2019
Can you use a GPU on a riser?
If you want to add an additional GPU (graphics card, essentially) to your PC, but do not have enough space or full length slots available, a great solution is to use a “Powered PCIe Riser“.
Does using GPU riser affect performance?
Polypheme. The riser probably does affect performance a bit. 3700 vs 3800 is only like 2%, so in the grand scheme of gaming if you were getting 90FPS in a game before, with the riser you'd get 2% less, so 1.8 less FPS, or 88.2 FPS. No real difference you'd see.22 Sept 2017
How much power does a PCIe riser use?
2) SATA connectors and therefore SATA risers are rated for 4.5 amps on the 12V rail. The PCIe 3 specification allows a GPU to draw 5.5 amps from the PCIe 12V bus. A 1080 ti GPU draws 4.4 amps at 80% power (link below), and more than 4.5 amps at 100% power.20 Jul 2017
Does riser affect performance?
The riser probably does affect performance a bit. 3700 vs 3800 is only like 2%, so in the grand scheme of gaming if you were getting 90FPS in a game before, with the riser you'd get 2% less, so 1.8 less FPS, or 88.2 FPS.22 Sept 2017