pci-e splitter ?

[SciMunk]

Hi, I wanted to know how pci-e splitter perform, I saw a "x4 pcie splitter to 4 pcie 16x" and I was wondering how it could actually work ? would the 16x actually be 16x ? or do they just become x1 ?

 

I'm asking because I would like to fit 7gpu on my threadripper setup (gpu rendering), for best performance it is recommended to have each gpu to at least 8x line, is there pci-e splitter that do 1*16x to 2*8x ?

 

Thanks for the help!

 

Sci

[Dujith]

PCIE Splitters cannot create more lanes then what you put into the splitter.

So if you put in a splitter in a 4x slot and the splitter itself is a 4x then the result will be 4 times 1x if used at once.

 

There are some chipsets around that do a very good job of this by balancing the PCIE lanes but i doubt thats on those cheap splitter cards.

 

For passive splitters you will need a motherboard that supports bifurcation

 

 

[TheRandomness]

It’s not a splitter, this just allows you to plug an x16 card into an x4 slot. However, you can get PCIe bifurcation risers which can split x16 to two x8 slots.