6750 XT stutter and underperforming in benchmarks.

[n3xus2]

Hello all I am cut/pasting my reddit thread but a user on these forums had a similar experience to me. His was solved with a fresh install but mine has not been unfortunately.

https://www.reddit.com/r/buildapc/comments/1fo2b39

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Hello I purchased a 6750 XT and recently ran a 3dmark test and saw im getting pretty poor results in Timespy (8.5kish) compared to similar machines which get (11.5)

Similar issue to this post https://www.techpowerup.com/forums/threads/6700-xt-low-fps-in-3dmark-timespy.311481/

However I did not get the same results with a fresh win11 install like this user.

The MAIN thing that is driving me crazy is stuttering. FFXVI demo stutters constantly. Horizon Zero Dawn stutters constantly. Even after trying to play for a while to load shaders.

Jedi Survivor seems to run pretty well.

------------SPECS--------------

Its a Canadian version of Asus ROG G15 mobo (B460) with I5 10400F chip.

256GB SSD (About 3 years old I think)

PSU is a Superflower Leadex 750W +Gold (1 week old)

Card is a XFX Speedster 319 6750 XT (2 months old)

2 x 16GB DDR4 in slots 2 and 4

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3dmark test in bottom 2% percentile. https://www.3dmark.com/search#advan...ck=&maxGpuMemClock=&minCpuClock=&maxCpuClock=

Also ran a userbenchmark and got this result - https://www.userbenchmark.com/UserRun/68669831

37th percentile pretty bad.

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I have done a few things over the last few days

• Enabled Resizable BAR
• Fresh Clean Install of Win 11 using this guide
• Made sure my RAM sticks were in slots 2 and 4
• Installed a 750W PSU with 2 separate leads and 2 separate 8 pin connectors to GPU
• XMP enabled
• ASUS performance mode enabled for power limits on 10400
• Above 4G encoding is on
• New displayport cable

ADRENALINE

• All AMD Adrenaline options turned off (Anti Lag etc)
• All Adrenaline options initially set at default
• Tried underclock 1150, 1160, 1170, 1180, 1190
• Tried Fast Timings on/off
• RAM timings at 2300
• Power at 15% and default.

Any suggestions would be appreciated. At my wits end and dont want to try any further without some other eyes on it. I thought the fresh install would help but it hasnt made a difference. Its like I am getting 60% of the performance scores that I should be getting in both 3dmark tests (Timespy and the new one) and Userbenchmark.

Thanks,

Chris.

 

[leonavis]

First go check if the temperatures are normal. You can use AMD Software overlay or HWInfo64.

Then the results from userbenchmarks doesn't seem too far off. The link for 3dmark doesn't get me a score, just every test with this setup ever made.

 

[agent_x007]

Can you show us a picture of your card (or point out to a review for it) ?
Best option would be to run MSI Afterburner or something similar with both GPU and CPU frequency (each core separately) + usages (for both and for RAM/VRAM) + temps of CPU cores and GPU showing during gameplay.

Use GPU-z and HWInfo64 to check all available sensors for highest temps recorded during that time.

 

[[crs]]

When I had a RX6800XT I had quite bad stuttering in game, turned out the hotspot would sit at 110-114 degrees c, once I was able to fix that, games ran perfectly.

 

[DarkDreams]

As the others have mentioned: first and foremost check temperatures!
But also note that your ram is running at only 2666 instead of its rated 3200 Mbps which is most likely limited by your B-series motherboard. Not sure what, if anything can be done about that, but it seems to only take the timings from xmp not the speed.
Furthermore your userbenchmark test shows you have only 19 GB free on your system SSD. That is bad, generally you want at least 10%, preferably 20% free space on an SSD. Either clean up some space there or get a bigger one, because 256 GB is pretty small these days.
Last thing I noticed was that GPU-Z says the GPU clock is only at 1700 Mhz as opposed to the default 2495 Mhz, which is very low. Not sure if that is from your attempts at fixing things or a (mining) vbios thing. Would have to check if the card boosts correctly.

 

[leonavis]

Hmm, looking at the clockspeed: The clock of this card's memory is usually 2000MHz, but yours shows 2300MHz. You do mention this in your post... Why is that? Maybe the Ram just can't handle it?

 

[physicsjunky]

The RX 6750 XT's stock memory clock is 2250Mhz and OP has it clocked +50Mhz over stock which should be stable.

 

[evernessince]

Furthermore your userbenchmark test shows you have only 19 GB free on your system SSD. That is bad, generally you want at least 10%, preferably 20% free space on an SSD. Either clean up some space there or get a bigger one, because 256 GB is pretty small these days.

Nice find, they didn't complete the test either:

OP might also want to ensure no system files are being stored on the HDD as well, like the page file.

 

[n3xus2]

Everyone gave such great replies. I got frustrated enough (not that it took much arm twisting) that I managed to pick up an Intel 12th gen bundle today for a good deal and decided to put the card and psu in the new rig. Building it now.

I figured the RAM bottleneck, mobo being kinda trash and new games not fitting on 256gb ssd anymore it was time to spend a bit more.

I will be putting the 1660 super back into this stri and handing it down to the kiddos.

however I will report back on how the GPU does in the new rig. I will also reply later with some info on the GPU and CPU temps that I did gather and the clock speeds.

thanks everyone for trying!

 

[eidairaman1]

Everyone gave such great replies. I got frustrated enough (not that it took much arm twisting) that I managed to pick up an Intel 12th gen bundle today for a good deal and decided to put the card and psu in the new rig. Building it now.

I figured the RAM bottleneck, mobo being kinda trash and new games not fitting on 256gb ssd anymore it was time to spend a bit more.

I will be putting the 1660 super back into this stri and handing it down to the kiddos.

however I will report back on how the GPU does in the new rig. I will also reply later with some info on the GPU and CPU temps that I did gather and the clock speeds.

thanks everyone for trying!

You never identified your system completely.