[SOLVED] Help choosing a processor to pair my 1070's in SLI

[k.2.23.mp]

This should be quick.

I have qty. 2 EVGA 1070's and i'm looking to buy an i9 to pair them with. I was considering the 9900k but I see it only supports 16 lanes. First, it really caught me by surprise that a mid-end chip would have so few lanes (i'm guessing thats due to the onboard gpu?). second, and my real question, is this a smart pairing for an sli configuration? Does running 8/8 limit these cards?

Thanks in advance!

 

[richiestang_78]

The limitations and bad performance in most uses of SLI will be far more of an issue then running the cards in 8X. Without going to a server or X series CPU the number of lanes will be 16, which again given the limitations of SLI is not worth the investment for the sake of SLI.

I do believe that the next gen of Ryzen will have more lanes but im not 100%.

 

[k.2.23.mp]

The limitations and bad performance in most uses of SLI will be far more of an issue then running the cards in 8X. Without going to a server or X series CPU the number of lanes will be 16, which again given the limitations of SLI is not worth the investment for the sake of SLI.

I do believe that the next gen of Ryzen will have more lanes but im not 100%.

I appreciate the response, but we all know SLI isn't optimal from a software standpoint, never has been 100%. I'm curious about the hardware limitations of a 8x\8x setup with two 1070s. What kind of performance hit are they taking by being in this configuration?

 

[Karadjgne]

None. Even a RTX2080ti would have a hard time coming close to saturating the bandwidth of pcie 3.0 x8.

You'll be far more limited by selection of games optimization than by any hardware issues in 2way sli. You'd need to move upto 3way to start seeing limitations.

 

[SaturdayGhede]

Honestly, there aren'tany CPUs on the current market that would bottleneck your two 1070s even at 4k. Ryzen 5 2600/i5 8600K and up will do you just fine. If you're worried about it just jump up to the Ryzen 7 2700X/i7 8700K.

It's odd when you find out that something like a Ryzen 3 2200G is only a bottleneck for Vega 56 and the 1070 in very limited instances.

 

[Karadjgne]

Any cpu can be bottlenecked, depends entirely on the workload, but as far as gaming goes, it's only the criminally stupid who open up 100+ Chrome pages and try and game and stream all at the same time who have any real issues.