i5 4590 Bottlenecking GTX 1070? (5760x1080)

sssanteri

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Apr 16, 2017
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Hi,

I have the Asus Dual GTX1070. When i'm playing GTA V with 5760x1080 surround, i can't keep 60fps (dropping to 40-45) even with only high settings and no MSAA. Actually there's only under 5-10fps difference between high and ultra settings (even grass) which is bit weird for me..? My CPU usage is 100% almost all the time. Same thing happens with Far Cry 4. (can't keep 60fps and the settings don't matter much). Many people say that 4590 should be fine with 1070? If someone has 1070 and 5760x1080, about what fps are you getting?

Other Specs (don't know if they matter but..)
Asus Z97-P
Asus Dual GTX 1070
i5 4590
16GB DDR3
600W PSU
 
Solution
Hi everyone! I upgraded to the 4790K and i can say that the 4590 was definitely bottlenecking my 1070. Now i can get 60fps in GTA V (5760x1080, high-veryhigh settings, msaa off) without dropping to 40-50fps every 5 seconds. Also when gaming, my GPU usage is now 90-100% (was 70-85%) and CPU usage is now 50-60% (was 95-100%).
According to the GPU Bottlnecking Chart over in the Graphics Forum, the GTX 1070 is subject to a semi-bottleneck with an i5-4590 in CPU intensive games. https://docs.google.com/spreadsheets/d/1EQOWVLxk0DOFXKfzCmz9lEZ-qpMb7mIvt8KUYek69A8/edit#gid=0

60fps with high settings and no MSAA sounds like GTX 1060 performance, but I'm not familiar with performance on that resolution. GTAV is a CPU intensive game. I think you might benefit from an upgrade to a 4790K. Have you checked CPU/GPU usage to see if it's a bottleneck?
 

sssanteri

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Apr 16, 2017
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Thanks for the link, really useful chart. And yes, maybe upgrading to a 4790/4790k would be a good idea. CPU usage is 100% as i said, and GPU usage is around 80-100%. (GPU usage being often under 100 means bottleneck?)

 
That's usually what it means yes. Sometimes there are other factors that affect GPU usage such as driver issues.

I recommend the 4790K over the 4790 non-K, for one it has 400MHz higher stock speed and two you have a Z97 motherboard that can overclock further.
 
Neat chart.

I don't think it's useful to think of things in terms of "bottlenecks". The i5 is not capable of staying above 60fps in all games. If you find your CPU is preventing you from getting the framerates you want (and you can verify this by watching CPU and GPU utilization while gaming), a faster CPU will help.
 
I checked this out for you with my 4770K. I disabled hyperthreading and I downclocked to Core i5 4590 speeds to simulate the Core i5 4590. I have a GTX 1080 ti so if it was going to bottleneck anything then it would bottleneck this GPU. I also tried it on 4K resolution because that's my native resolution and it's close to 5760 x 1080. 4K has about 2 million more pixels. I got an avg of 100 fps with the simulated i5 and 108 with my i7. So I don't think you're hitting a CPU bottleneck. I think there might be programs running in the background eating up your CPU resources.
 

sssanteri

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Apr 16, 2017
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Thanks for checking it. But there's no heavy things running on the backround when i'm gaming. I also tried rendering the game on 4k resolution (1080p + 2x frame scaling). FPS was horrible, around 20-30 with only high settings, and GPU usage was only 60-70%.
 


It's definitely a CPU bottleneck but why you're hitting it I don't know. Upgrading your CPU may help but it seems unusual to me that it's acting that way. So I don't know if a better CPU would help.

At 5760x1080 the GTX 1070 should be able to hit 60 fps with some settings lowered. The GPU is clearly not working to its full potential here.
 

mrobscura

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Mar 9, 2017
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what is your gpu usage? just because you cpu is hitting 100% that doesnt mean its bottlnecking the card. at 1080p it would because the cpu cant keep up with the 1070, but at this res the gpu should have enough to do that its not bottlenecked.
 

sssanteri

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Apr 16, 2017
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5760x1080 GPU usage is around 80-100%, 4K GPU usage is only 60-70%



It's pretty weird that i can't even get same fps what 1060 is getting in this video.
(I did some fps tests with 4K resolution, because 5760x1080 is really hard to compare.)
https://www.youtube.com/watch?v=oJIAmat-Oo4

 

sssanteri

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Apr 16, 2017
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Hi everyone! I upgraded to the 4790K and i can say that the 4590 was definitely bottlenecking my 1070. Now i can get 60fps in GTA V (5760x1080, high-veryhigh settings, msaa off) without dropping to 40-50fps every 5 seconds. Also when gaming, my GPU usage is now 90-100% (was 70-85%) and CPU usage is now 50-60% (was 95-100%).
 
Solution