why do I have low fps with my r9 280x and fx 6300?

ysgala · Feb 16, 2015

Hi there!

Since I've bought my system, I got pretty low fps ( like 20/30 fps in Crysis 3 while my resolution isn't even full hd - 1280x1024) in ''heavy games''. I used to have a lot of issues with my cpu (overheating-bsod) but I fixed that by buying a new cooler: hyper 212 evo. At first I thought my cpu was bottlenecking my gpu, so I monitored my cpu- and gpu usage while gaming :in most ''heavy games'', my gpu is using maybe 50-70 % of its full potential and my cpu also maybe 50-70%. Does anyone know what is causing my poor performance?
Thanks in advance!!

(P.S: sorry for my bad English, I'm not a native speaker)

BrandonYoung · Feb 16, 2015

If you are looking at overall CPU performance of 50-70%, you could be 100% on at least 1 core, which will limit your GPU performance, which is what I think is happening. You could look into overclocking if this is your case, or investigate upgrading the CPU (or even CPU/Motherboard (ram?)).

TechyInAZ · Feb 16, 2015

Things to try:

Run a memory test (memtest):
Update your bios.
Update your graphics drivers (i'd do this one first).
If you have origin or steam, try validating the game cache.

ysgala · Feb 16, 2015

BrandonYoung :

Actually, I looked at all the cores individually, and none of them was using 100 percent :3

ysgala · Feb 16, 2015

TechyInAZ :

Thanks, but I already did all of that

BrandonYoung · Feb 17, 2015

I would make sure that your GPU is not thermalling and slowing to protect itself. You mentioned that you replaced your CPU cooler, which -shouldn't- be an issue, but perhaps monitor your CPU temperatures as well, just to eliminate any possible "easy fixes".

ysgala · Feb 17, 2015

BrandonYoung :

I monitored my cpu temps ( I ran stresstests like heavyload and prime95, and I checked the temps after gaming) and the maximum temperature it reached was maybe 54° (at stock speed). I also monitored my GPU temps while under load ( gpu stress tests), and it reached a maximum of maybe 70 degrees. But while gaming, it never reaches that temperature because it is never under full load :3

ysgala · Feb 17, 2015

Also, I get BSOD's (SYSTEM_SERVICE_EXCEPTION) frequently. Not while gaming, but when I close or minimize games.

ysgala · Feb 18, 2015

But if my cpu was indeed the bottleneck, why isn't the cpu under full load when gaming? My cpu is using maybe 50-70% (per core). Also, I've seen more similar setup's (r9 280x + fx 6300) and they seem to do fine.

ysgala · Feb 18, 2015

It isn't only crysis 3, It is with all 'new' games (crysis 3, tomb raider, even valley banchmark) . My specs are:
r9 280x
fx 6300
6 gb ddr3 Ram
500 gb Harddisk
ASRock 980DE3/U3S3

Matt Dobe · Feb 18, 2015

How is it a bottleneck if his CPU isn't maxing out on any cores?... Sounds more like a driver/power/temp issue to me.

ysgala · Feb 18, 2015

I believe there could be a (little) bottleneck, but it doesn't explain why I got the same (or worse) fps with my old setup: older amd quad core with 7850.

COLGeek · Feb 18, 2015

ysgala :

What make/model is your power supply?

ysgala · Feb 18, 2015

COLGeek :

Coolermaster 700 watt b700 black

COLGeek · Feb 18, 2015

That budget PSU should be sufficient to power this system. Is anything currently overclocked (CPU, GPU, memory)?

Also, is your HDD running in AHCI, IDE, or RAID SATA mode (look in your BIOS for SATA mode information)?

What resolution are you gaming at (i.e., 1920x1080, 1600x900, etc)?

ysgala · Feb 18, 2015

COLGeek :

I will check my SATA mode in a minute. Nothing I have is overclocked at the moment. And my resolution is ( as earlier mentioned) 1280x 1024 :/

COLGeek · Feb 18, 2015

ysgala :

Sorry, I missed the resolution info from your original post. At that low a resolution, your GPU is being forced to under-perform (in a manner of speaking). Is 1280x1024 the native resolution of the display?

ysgala · Feb 18, 2015

COLGeek :

ysgala :

Sorry, I missed the resolution info from your original post. At that low a resolution, your GPU is being forced to under-perform (in a manner of speaking). Is 1280x1024 the native resolution of the display?

my sata is running in AHCI mode btw. And yes, that is the native resolution of my monitor (very old VGA CRT monitor)

COLGeek · Feb 18, 2015

Good, on the AHCI part. Slow disk access can certainly contribute to poor performance in games.

What is the speed of your memory in your BIOS? What is the mix in memory module sizes to get 6GB (2x1GB + 2x2GB, or 1x2GB + 1x4GB)?

COLGeek · Feb 18, 2015

Also, are you running the most current BIOS (1.60)? Just confirming the actual version number.

http://www.asrock.com/mb/AMD/980DE3U3S3/?cat=Download&os=BIOS

ysgala · Feb 18, 2015

I have 2 sticks (1x 4gb & 1x 2gb) both running at 1333 mhz, and my bios version is 1.60.

COLGeek · Feb 18, 2015

This means you are running in single channel mode. Shouldn't hobble the system too much. For best results, you should use matched memory.

Do you have access to another GPU (like your old 7850)?

ysgala · Feb 18, 2015

COLGeek :

no

I sold it

COLGeek · Feb 18, 2015

This CPU/GPU/mobo combo should perform fairly well at the resolution being used for the games mentioned. It is possible that previous overheating issues may have damaged the system hardware (not too likely) or corrupted Windows (quite possible).

Please download and install the Valley Benchmark on the link below, run it and report the results:

https://unigine.com/products/valley/download/

ysgala · Feb 18, 2015

I got 2300 at ultra settings (everything maxed out, 8x AA) with 55 fps on average

Also, it could be quite possible that my cpu is damaged due to overheating. In the past (when I used my stock cooler), the cpu would reach 80 degrees celsius within a few seconds when running a stresstest. I fixed that issue by buying a new cooler (evo 212)

why do I have low fps with my r9 280x and fx 6300?

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