What's bottlenecking my GTX 1080?? CPU??

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YoungSandwich69

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Mar 4, 2017
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Here are my specs:
Asus X99 Pro/USB3.1
64GB G-skill RGB ram 3000MHz
1TB nvme SSD
Intel Xeon E5-4655 V3 6 core 30mb cache 2.9GHz, Turbo 3.2
GTX 1080 Founders Edition
850W power supply

My GPU doesn't seem like its running as fast as it should. Frame rates aren't very impressive at 1080p. It only scored 2043 in Heaven benchmark test, and 2200 with +195 core clock and +450 mem clock. All at 1080p
Other people seem to be scoring in the high 2000's stock. Is this 6-core 2.9 GHz processor the reason?? The core clock is a little slower than most other 6, or 4 core processors, so I thought that might be why.
Would it help if I purchased a 1440p monitor?? Is the 1080p resolution what's limiting my performance? Thanks.
 
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chemmajorp53
It's not a bad chip, it's just that the GTX 1080 is massively overpowered for use at 1080p, even with a 144hz monitor. No CPU is going to keep up with it at that resolution, but lower clock speeds exacerbate that problem pretty heavily. If I were you and was OK with 60hz, instead of replacing the CPU I might consider getting a 4k monitor. Even 1440p60 doesn't really push the GTX 1080 that hard in most games. However, it would help relieve the bottleneck a bit, not that it really matters that much.
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chemmajorp53

chemmajorp53

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Apr 5, 2013
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If you're gaming at 1080p, then I'd expect that low-clocked xeon to hold back your GTX 1080 pretty severely. It should be less of an issue as you move up in resolution, but 2.9GHz Haswell cores aren't really that impressive when it comes to single-threaded performance.
 
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YoungSandwich69

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Mar 4, 2017
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Good to know! I pulled this chip from a server, and figured it would work just fine.
After looking in task manager during the benchmark, I see that core 0 is running at around 90%, and the other 5 are basically doing nothing (running at 2-3%).
 
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chemmajorp53

chemmajorp53

Dignified
Apr 5, 2013
3,160
1
15,010
It's not a bad chip, it's just that the GTX 1080 is massively overpowered for use at 1080p, even with a 144hz monitor. No CPU is going to keep up with it at that resolution, but lower clock speeds exacerbate that problem pretty heavily. If I were you and was OK with 60hz, instead of replacing the CPU I might consider getting a 4k monitor. Even 1440p60 doesn't really push the GTX 1080 that hard in most games. However, it would help relieve the bottleneck a bit, not that it really matters that much.
 
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