4gb gtx 960 SLI no performance improvement?

[ShySlugg]

i initially had one 960. I experienced some choppynes in gta but it wasnt to bad. I decided to sli another 960 for gta and any other games i might play but when i did i didnt really notice any improvement. I was still getting frame drops to 40fps and its still kindof choppy. I know sli is enabled and afterburner is showing both of them working. Other benchmarks i have seen people are running 2k moniters all high settings on the 2gb version and are staying above 60fps? i compared to my friends pc:
i74790k
GTX970
16 gigs of ram

and it seems that his system runs it much more smoothley

My Specs:
FX8350
18gigs RAM
4gb GTx960 sli

 

[mlga91]

Your problem is the FX 8350, when one core reachs 100% of usage (which is very common on those CPUs) then you get FPS drops and it will stutter like hell.

 

[azzazel_99]

You did enable the sli in nvidia control panel right? That cpu is probably whats holding you back.

 

[migronesien]

GTAV is mainly CPU intensive and there the 4790k pulls away hard.
Also how did you get to 18gb of RAM? Mixing RAM also might cause some trouble.

 

[darky26]

Might be the CPU.

Also not sure if you have 2 X 2 GB GTX960 in SLI or 2 X 4 GB GTX960. 2 X 2 GB GTX 960 doesn't make 4 GB of VRAM. it would still be 2 GB. you just get the extra processing power.

 

[azzazel_99]

Yes directX12 gives developers the ability to code games for vram stacking so eventually 2 2gv video cards will equal 4gb vram but games arent coded for that yet

 

[Tbonius]

Somebody's got to ask, you do have the sli bridge on, right?

 

[Gamer1985]

Its likely your CPU bottleneck and the fact that some games arent optimized very well. I am running SLI 980Tis and ROTR, Division all dont scale very well, almost to the point as only maybe 10-20FPS more then single card performance. Havent had a chance to checkout GTA5s SLI scaling/optimization. Your seeing your friends PC handle it well because of the 4790K.

 

[azzazel_99]

Also only way you are going to have 18 gigs of ram is if its mixed matched. I would check that system ram too and make sure you have the exact same ram in all 4 of the slots or in both slots if you are using 2 8 gig sticks. Also you're going to need to overclock the piss out of that 8350 to make it worth a darn. Its not a good cpu at all for gaming unless its overclocked a good bit. Get a good aftermarket cooler and run it at 4.5ghz+ and that will help. Honestly not to be a intel fan boy but intel has better core performance which is what you want in games. a low/midrange older i5 like a sandy bridge will blow the doors off amd's highest end cpu in games (this it's the 9590?) Anyway just overclock it and it will help.

Also 960's in sli arent great anyway at all.

https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_960_SLI/7.html

 

[Platinum_Gamer]

Please try adding at least 4GB of pagefile into your SSD if you have one. Doing so removed my stutter from GTA 5, but I have a single 670. Games like GTA5 and Just Cause 3 still require a pretty big pagefile even if you have plenty of RAM