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The Radeon RX9070XT / RX9070 Owners Thread

ICDP said:
To be honest a VRAM overclock adds essentially zero FPS. Think just over 1% at best and you get the picture. So you might see margin of error increases in benchmarks let alone games. I got a bigger increase in score closing a browser and retesting :)

Steel Nomad goes from 69 stock to 70 when I add a VRAM OC to 2760 or so with fast timing.

The big increases will be undervolting and even that gives diminishing returns below about -50mV.

My advice is get Optiscaler, check if it works for your game, enjoy FSR4 and play games. ;)
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I've got the quantified effects of each offset in Steel Nomad available here in a comprehensive table. It was just over 2.5% gain at -60mV between stock mem and 2760 mem fast timings, no other changes. Stock voltage to -60mV around 3%. Power from 0% to 10%, 2%, no other changes. Unsurprisingly good cooling has an impact.
 
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So like I said, margin of error difference in games then? Thanks for proving my point ;)

I have a 9070 XT Pulse and it is a very good cooler. VRAM overclock makes very marginal difference in actual gaming. Hence my advice to just game and enjoy.
 
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Journey said:
Several things.
  • Check your motherboard BIOS is up to date, and you reset to defaults.
  • Do a true clean re-install of your OS e.g totally wipe your drive, and don't connect to the internet until you have installed your AMD chipset drivers (if Ryzen) and GPU drivers.
  • Check your PSU connection to your GPU/and PSU end, and make sure you are using separate 8-pin connectors, not two from the same cable.
  • Install one game only, that you are seeing the issue with then test that.
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I did an fresh OS install on a spare after after realising my Win 11 OS history was a series of 'upgrades' and many tweaks over a looooong time. So far I have had no issues which is great, but still testing.

Thanks for the OS call out.
 
ICDP said:
So like I said, margin of error difference in games then? Thanks for proving my point ;)

I have a 9070 XT Pulse and it is a very good cooler. VRAM overclock makes very marginal difference in actual gaming. Hence my advice to just game and enjoy.
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Chill out and relax. You come across very confrontational on here.
 
Kirkatron said:
Chill out and relax. You come across very confrontational on here.
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lol, seriously? When did advising people to just enjoy their GPU and not worry about margin of error* differences because they think they won (or lost) some silicone lottery become “confrontational”?

I’m not being confrontational, I’m giving advice to fellow gamers because the difference between the best silicone to the worst will be sub 5% at best and more like 3%. That’s a lot if you benchmark, but nothing in actual gaming with the FPS overlay disabled.

* Margin of error is usually plus or minus 3% in most scientific cases. Or about 95% confidence levels. So in the case of 2% due to VRAM overclock, it’s even lower than acceptable margin of error.
 
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majority just plug n play, a few of us like to play with our new cards to see what more can get out of it n whats not possible.
aeotd we bought the 7900 series to game
 
Kirkatron said:
Looks like you got unlucky. My mem is stable up to 2800 with fast timings enabled and I think pretty much most cards do at least 2700 with no issues.
Are you running any other offsets when testing these mem settings as the other settings can impact how fast the memory runs.
For example I can't run 2800 with -175mV UV, 2730 is the max there, but can happily run 2800 at my game stable -95mV.
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+10% PL and -50mV undervolt but had the same behaviour at stock. Furthest I can push the VRAM is +64mhz without flickering or crashing.

This is also with a fresh OS install, multiple DDUs with optional and WHQL drivers tested, chipset all up to date and Windows auto-install disabled.

It's not the end of the world but just a tad disappointing is all.
 
MCFC_ANDY said:
majority just plug n play, a few of us like to play with our new cards to see what more can get out of it n whats not possible.
aeotd we bought the 7900 series to game
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You are absolutely right, I like to tinker and tweak and see what I can get out of my GPU. Though once you’ve pushed the envelope, you tend to settle on a nice happy medium overclock.

I can get ~8% - 10% all out OC on my 9070 XT Pulse and it’s not a stellar undervolter. But when gaming I’ve settled on a nice quiet 250w profile that gives about stock performance.

AC Shadows 1440p Ultra High preset, FSR4 balanced (Optiscaler).

Stock: 66 FPS avg, 49 minimum
MaxOC: 71 FPS avg, 53 minimum
Efficiency: 68 FPS avg, 51 minimum

Unless the FPS overlay is on, I can’t tell the difference but it was fun to tinker. :D
 
Jonno19111 said:
+10% PL and -50mV undervolt but had the same behaviour at stock. Furthest I can push the VRAM is +64mhz without flickering or crashing.

This is also with a fresh OS install, multiple DDUs with optional and WHQL drivers tested, chipset all up to date and Windows auto-install disabled.

It's not the end of the world but just a tad disappointing is all.
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Doesn't impact you much at all, so no biggie as you said, but I get the feeling.
Have you checked your vram temps?
 
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