Question New RX 7900 XT not performing close to online benchmarks

[Edizzler]

I recently upgraded a bunch of parts for my PC due to hardware issues and I'm having some trouble with my graphics card performance. I've done a fresh install of windows and graphics drivers, updated BIOS. Only things in my computer which aren't new are motherboard and memory. One of my RAM sticks kicked the bucket a little while before I got my GPU so I'm currently running at half power. That's the only possible theory I have that could be bottlenecking me but I don't feel like it would be that bad and I can't test it until my new RAM arrives.
I've tested playing Cyberpunk 2077 at high settings 1440p and the framerate would vary at ~60fps. I checked a few benchmark websites and all of them were at an average of over 100fps. I've had the same experience with other games having mediocre performance like Elden Ring still having frame drops below 60fps on a somewhat consistant basis. Warhammer Darktide once again barely making 60 frames at high settings. Definitely not the kind of performance I would expect from a $1500 AUD card.

Parts List:
OS: Windows 10 Pro
Motherboard: Gigabyte B450 AORUS ELITE ATX AM4 (BIOS: American Megatrends International LLC. Version F64c)
CPU: Ryzen 9 5900X
GPU: Sapphire 20G Radeon 7900XT
RAM: 1x16G 2400Mhz
SSD: Samsung 970 EVO Plus 1TB
PSU: EVGA SuperNOVA 1000 P5

 

[Kona45primo]

RAM: 1x16G 2400Mhz ?

Do some research on best Ram for Ryzen 5000 series, you are at worste case scenario.

I would recommend 2X16 3600mhz CL16 or so.

Sounds like you'll have your new Ram soon, what kit do you have coming?

 

[Edizzler]

RAM: 1x16G 2400Mhz ?

Do some research on best Ram for Ryzen 5000 series, you are at worste case scenario.

I would recommend 2X16 3600mhz CL 16-16-16

Yeah, hence why I'm getting some new ram. unfortunately 3200mhz is the max my motherboard is compatible with so 2x16G 3200 will have to do.
Do you really think my current ram would bottleneck me that much?

 

[Kona45primo]

Your board will most likely run much faster than 3200mhz. My B350 says the same thing, but it's humming along nicely. The memory controllers in the CPU usually dictate the max speed. I'm running 3600mhz CL16-16-16 4X8gb with a 5700x, board started with a 1600x and that was not 100% stable with even 3200mhz.

But honestly not a huge difference from 2x8 3200 CL14.

Maybe a 10 fps difference.

I would guess your RAM has a lot to do with it, certain games scale very well with memory. I would make sure to set your XMP on the new ram and test.

Keep in mind many reviewers may slightly overclock their ram or tighten up timings a bit to get everything they can out of the system. Can be good for another few-10 fps depending.

But I wouldn't worry about anything, maybe take notes on your current FPS now and compare later. No sense in trying to diagnose anything until the new ram in installed and set to XMP.

 

[Edizzler]

My B350 says the same thing, but it's humming along nicely.

From what I read online apparently if you're using a frequency that's too high for your motherboard it'll automatically underclock it to whatever the max you're compatible with. Anyway, hopefully it'll be fine with 3200mhz but we'll see.