Caporegime
Recommended is 850W. Lower might be okay if the PSU is decent and the GPU at stock or undervolted. 750W should be fine. 650W might be pushing it, but I know Jedi ran a 6900 XT using a 650W for a while.
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The Radeon RX 6900/6950 XT Owners Thread.
- Thread starter Kaapstad
- Start date
Caporegime
- Joined
- 18 Oct 2002
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- 30,855
I did indeed, I just moved to an RM850X for a little more headroom. If I was running all that on an SF600 though I'd probably reduce the PL a little and limit it to 230/240W to be safe but even at that it's a strong strong performer.
Soldato
Would you guys recommend upgrading to the SF750 Platinum then?
Caporegime
- Joined
- 18 Oct 2002
- Posts
- 30,855
Would be prudent for the headroom, but wouldn't hurt to try the 6900XT initially shirley.
Had the SF750 in an ITX build with a 3090 and it was absolutely fine. Would have no issue with the 6900XT.
Associate
Read this in the RDNA3 thread:
I thought it appropriate to bring this to the 6900 thread, as I'm curious about it; being the owner of a card that is supposed to be xtxh. I don't recall seeing this suggestion here - is it now a general thing that dropping the power limit actually increases performance on these cards?
I must admit I haven't really paid attention to properly tuning my card as (apart from a worsening core<->hotspot delta) the card has been good - I dropped the voltage/increased the frequency to a point that was still stable in the stress test and a bunch of benchmarks wacked the power slider all the way up and left it at that. I couldn't seem to do much with the memory, though.
Naturally, being able to lower the power and get better performance would be excellent.
I thought it appropriate to bring this to the 6900 thread, as I'm curious about it; being the owner of a card that is supposed to be xtxh. I don't recall seeing this suggestion here - is it now a general thing that dropping the power limit actually increases performance on these cards?
I must admit I haven't really paid attention to properly tuning my card as (apart from a worsening core<->hotspot delta) the card has been good - I dropped the voltage/increased the frequency to a point that was still stable in the stress test and a bunch of benchmarks wacked the power slider all the way up and left it at that. I couldn't seem to do much with the memory, though.
Naturally, being able to lower the power and get better performance would be excellent.
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It's on it's way!
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Associate
Ah nice. Let us know what the max MHz are within the driver when you get 5 mins, before @LtMatt asks lol. (Performance/Tuning/Manual Tuning/GPU Tuning/Advanced Control.)It's on it's way!
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Should be here by 4pm..ish, just before I go to work, gives me a bit of time to setup and tinker.
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Looks to be a solid built card.
Noticing the well designed heatsink, a bit like my funky named Inno3D X4 design, although Inno3D is not known as a premium brand the X4 Ampere design is absolutely solid and has great VRM / memory cooling, it sems ASRock has deployed a similar design on the GP 6900 XT here.
Noticing the well designed heatsink, a bit like my funky named Inno3D X4 design, although Inno3D is not known as a premium brand the X4 Ampere design is absolutely solid and has great VRM / memory cooling, it sems ASRock has deployed a similar design on the GP 6900 XT here.
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Ok so hitting 2500mhz out of the box in CSGO at over 700 FPs, a bit of coil whine as expected, nothing major.
DPC latencyis par with my 3070. As I uploaded this, it hit 1867
I hit 2395mhz in RE Village with maxed out settings and full RT on maxed out, 109-130 FPS. 76c. (My case don't have much GPU airflow like at all.) I will have to change that.
DPC latency
I hit 2395mhz in RE Village with maxed out settings and full RT on maxed out, 109-130 FPS. 76c. (My case don't have much GPU airflow like at all.) I will have to change that.
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Soldato
- Joined
- 8 Jun 2018
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- 2,827
I stop using dpc a long time ago. And use latencymon instead. DPC Latency was designed for win7 back in the day. Not sure the last time it was updated. Heck, I cannot find the home page any more. The last time I've seen that used was back in 2013-2016 time range.
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Configured my fan setup in the bios to be more aggro, pushing the 6900 XT with high-refresh Uncharted.
Undervolted at 2500mhz.
Looks like I need to delete the shaders for this game and let the game rebuild them the fog is glitchy.
Undervolted at 2500mhz.
Looks like I need to delete the shaders for this game and let the game rebuild them the fog is glitchy.
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Soldato
Soldato
@Tired9 any chance you can use the texture pack now and play on proper settings?
Associate
The only thing i've done since installing my Asrock 6900XT (thanks OCUK!) is a quick and dirty undervolt as AMD seems to like pushing a lot of Mv through their cards where it isn't strictly necessary, I did the same with my previous AMD card (Vega 56).
Saves a bit of power and reduces the heat a little, if you want to go further you can underclock the card and undervolt for specific games from within the driver software.
After a bit of fiddling my card is rock solid at 1120Mv, not much of a saving but i'm running a 750w PSU (though it seems happy), every little helps
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What sort of max stable overclocks do folks here get?
I managed to do 2715mhz dirty OC and do a valid 3DMark score with zero artifacts.
I managed to do 2715mhz dirty OC and do a valid 3DMark score with zero artifacts.
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Having just got a 6900xt and not built in a while. How do people undervolt these days? Is there amd software, alt software or via bios?
Is there an easy to use benchmark software to evaluate performance against while undervolting etc? Many thanks.
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