I've been particularly suspicious of my GPU's weak performance from the start.
Let's start with my specs
AMD Ryzen 7 2700X
Asus Turbo GTX 1070
Rosewill ATX 450 Watt PSU
Asus B450F-Strix Motherboard
Corsair LPX 32 GB 2400mhz
NZXT Kraken M22
And if at all it helps, my monitor is the Sceptre C305B-200UN, running at 2560x1080 @ 200hz.
This GPU was sketchy from the beginning. A brand new GTX 1070 from a trusted company, ASUS, for $380 seemed like a steal to me especially coming from amazon.
In Fortnite, paired with the quite high-end 2700X, I can't get even close to my monitor's desired FPS, matching the 200hz refresh rate. No settings I play on can achieve that. I've looked online, and others using more expensive, powerful 1070's and they get significantly higher framerates. In competitive games, on all low settings, I get something around 100-120 fps, which I know is not good (When looking at the sky or ground, of course, I can get 200). For other typical 1070s, from what I've seen at least, 200 should not be a challenge at ALL on these settings. Another example is ACS, where on all max I NEVER go above 37 fps. Turning down to all low, I BARELY get 60. But circling back to Fortnite, I often get INSANE stuttering lag where for minutes straight the screen starts freezing up and out of NOWHERE I dive down and start seeing framerates in the '20s. I suspect my PSU is the cause even today, as 450 watts was quite a stupid buy, and I'm surprised my system even boots and functions well idly. But, is the PSU behind all the tearing and freezing?
Going back to the start, please take a look at my latest UserBenchMark run: https://www.userbenchmark.com/UserRun/29449591
And here is my GPU: https://www.amazon.com/ASUS-GeForce-Auto-Extreme-Graphics-Turbo-GTX1070-8G/dp/B01IPVTHL8/ref=sr_1_1?dchild=1&keywords=turbo+gtx+1070&qid=1592674696&sr=8-1 (Don't ask why it's $800, I got it for around $400)
Looking back at my first run 9 months ago when I first built my computer, the GPU was performing in the middle of its kind (42nd percentile), but the framerates weren't noticeably better at all. Now, you can see it's on the 20th percentile, which is WAY below what you would expect of a typical GPU. I know for a fact my CPU is too good to bottleneck it, if anything the GPU is the bottleneck. Yet, the benches in UserBenchMark showed the GPU performed well on the FPS tests (Lighting, Reflection, Parallax, etc.). But comparing to UserBench's average, my GPU is only marginally slower than the overall rating given, at 73.9%. I can't say for a fact I'm underperforming, but I am pretty confident I am. My GPU drivers are up to date, according to both Windows 10 and GeForce Experience, and my temps are perfectly fine with them being in the low 50s idle, and when playing the heavier titles no more than 62° C. I do not overclock at all, running at the stock 1683 MHz.
So now that leaves me with the question being what to do. I've anyway been thinking of a GPU upgrade lately, like a used 1080 ti. But I don't want to do that, with the hopes of "fixing" my current one. So any suggestions? A PSU upgrade, perhaps? And what is causing the gradual degeneration of my GPU, with a 22 percentile decrease over the course of 9 months?