Do I have a bottleneck with a 5900x and 5080 at 5120x1440p?
Posted by OvalHusky@reddit | buildapc | View on Reddit | 15 comments
Built a PC back in 2021 (specs below) and recently upgraded my monitor and was lucky enough to snag a PNY 5080 at $999. After using for about 2 weeks, ive noticed that my FPS is really all over the place with occasional stuttering and 1% lows being less than half my average frame rate. I am now concerned that my legacy build (CPU/RAM) is now a bottleneck to the new GPU paired with the new monitor. Before I get tempted to fall into the upgrade trap, wanted to get some opinions. Is there anything I should be looking at closely?
Current specs:
- MB: X570 MSI tomahawk
- CPU: Ryzen 5900x
- RAM: 32GB DDR4 3600 CL16 dual channel Gskill
- PNY 5080 OC
- Main Drive: 2 TB Samsung 980 nvme
- Monitor: Samsung G9 OLED 5120x1440
Current usage is mainly gaming, golf simulation, and home networking, among regular browsing. I have noticed in gaming that my FPS bounces around quite a bit, and that my CPU time (8-9ms) is typically double that of my GPU time (4ms).
I use DLSS, and play on high settings on the following games mostly:
- COD Warzone
- Doom Eternal
- Armored Core VI
- Resident Evil
What I am seeing:
- GPU does not hit full utilization, typically hovers around 50-60%
- CPU does not even hit full utilization, typically hovers around 50-70%
- GPU time is consistently 50% of reported CPU time
- HWinfo shows my GPU is pulling less than full power, rarely going above 250W
What confuses me is that the 5900X is not sitting at a higher utilization. Any thoughts would be appreciated. Would rather not have to upgrade to a full AM5 system if I can avoid it, but also dont want to have the new GPU capped at less than 100% its potential.
gti-r@reddit
You will always have a bottleneck, the best cpu and GPU paired on the market will still create a bottleneck, it's unavoidable and a fact of building PCs, how tight that bottleneck is where you can choose to make adjustments. If what your asking is will that CPU significantly hinder that GPU at 1440p UW, the answer is it entirely depends on the game you play, but probably not.
9okm@reddit
DDU
RBisoldandtired@reddit
Stfu about bottlenecks đđ
OmfgTim@reddit
Itâs like talking about cars. Everyone is always worried about reliability.. At some point I donât even know what it means anymore.
OvalHusky@reddit (OP)
Not sure how this conversation is analogous to reliability or cars in any way⌠asking a genuine question about a pc build and optimizing in the literal âbuild a pcâ subreddit
RBisoldandtired@reddit
âAm I cooked chat?â
Elliove@reddit
Why? That's a legit concern in this case.
RBisoldandtired@reddit
Because every system will have a bottleneck somewhere. Itâs a buzzword used by people because theyâve seen it mentioned on these types of subs every 4 posts for the past 6 months.
Theyâve got a 50 series GPU in an AM4 build. Ofc the card isnât functioning at optimal efficiency.
Maybe Iâm just sleepy.
Elliove@reddit
GPU is the last thing in the pipeline, so maxed out GPU means no bottleneck in the context of gaming. But since letting the CPU draw frames faster than GPU processes them will lead to infinitely increasing input latency, the amount of frames CPU can pre-render is limited. This does effectively act like "GPU limits CPU's performance", but this really is created artificially, so it's not a bottleneck technically speaking, as CPU doesn't rely on data from GPU to start a next frame.
Any-Return-6607@reddit
Most of the time the bottleneck is in front of the monitor
RBisoldandtired@reddit
Just the buzzword of the month innit
Any-Return-6607@reddit
Indeed it is
mov3on@reddit
This indicates that you are CPU bottlenecked in the specific games where you see such GPU usage. The CPU is not able to provide enough frames for your GPU, resulting in low GPU usage.
This is normal behavior. Games donât always use a lot of CPU power, and some are even limited to 1-4 cores. Generally, you wonât see high CPU usage in most games, especially when you have a high core count CPU.
5900X is still a quite decent CPU, but it might struggle in online games like Warzone. Either way, only worry about bottlenecks if you donât get enough frames. Otherwise just play games and donât worry.
Elliove@reddit
CPU doesn't have to be maxed out to bottleneck. Since you have lots of spare GPU power - you can use DLAA instead of DLSS (lots of ways to do that, i.e. Special K or OptiScaler), and then you also have DSR and DLDSR (basically supersampling). There's nothing wrong with GPU chilling a bit, games get more demanding every year, but if you want to just make GPU work harder - whose are the best ways I believe.
DigitalTechnician97@reddit
Put your graphics settings all back to default. I had the same issue with PUBG with my system, Super High CPU usage and Barely any GPU at all. And never had above 80fps when I knew for a fact my 5600X and 6700 were capable of Far higher frames than that.
Set all my video settings to default and then manually changed some things to High/Ultra and played with the settings until finding the culprit, What it is, Is "Sharpening" being on and the "Render Scale" slider being set to max. For some reason it messes up the whole thing. Set those to default and now my GPUs always at 98-100% and the CPU sees a max of like 60% but usually at 40 ish. And now I sit at like 150Fps all day.