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I had 400W set in MPT, but it didn't get reach it. It was weird seeing over 400 FPS in the first test.Very nice, what power limit did you use to get up there?
Just goes to show how power starved the 6900xt is. My son's 6700xt will play Fortnite happily with a 2900mhz max clock set and hit 2865mhz in game. Not a whole lot less power to run half the cores!I had 400W set in MPT, but it didn't get reach it. It was weird seeing over 400 FPS in the first test.
I thought they were limited to 2800mhz?Just goes to show how power starved the 6900xt is. My son's 6700xt will play Fortnite happily with a 2900mhz max clock set and hit 2865mhz in game. Not a whole lot less power to run half the cores!
Sapphire RX 6700 XT NITRO GAMING OC, allows upto 2950MHz.I thought they were limited to 2800mhz?
Nice! My best Firestrike number comes from a 970mv (1000mv before adding a water block)I got my min gpu voltage set to 650mv in MPT and it will sit around 700mv on light loads.
1) Is my card a golden sample? I think my scores are really good even the slightly lower ones, especially considering I'm on air!
Hi guys
I'm sorry for bursting in as a new member, but I have a few questions on my overclock and would like to know how good it is and how much further I could push it with your advice.
My 6900XT is a MERC Black, on the stock cooler so air. Used Morepowertool to reach 330W power limit, I then add +15% in wattman. 2720/2500 clock range, 1120 memory, 1175mv.
In Time Spy, I've managed 21 687 graphics score (says invalid score because of tessellation for some reason, I have no idea why.) Here's an earlier score, a bit lower at 21 400 but valid
In Firestrike Ultra same story, says invalid despite me not changing a thing so my best graphics score of 15 566 isn't valid but here's once again an earlier valid score of 15334
The settings for the slightly lower scores are gaming stable, hours on end on Horizon Zero Dawn which is great stability test in my experience, found instabilities in my 3090 (coming back to that later) that even Cyberpunk didn't find, hours in Outriders, and a bit of cyberpunk play. For the highest scores I had vram at 2150 and I'm not seeing much of an uplift in gaming so I'm not sure it's actually stable, and not just correcting itself negating the gain. I haven't tried pushing the card to the absolute max for benchmark, I just went for gaming stable. So Maybe I can break 22k on air in TS?
So then comes the tricky thing. I also have a 3090. I'm super torn on which card to run daily. My 3090 while not a terrible OCer is nothing special but still it overall beats my 6900XT in games. However, if that 6900XT is indeed a golden sample, I might be able to tweak it more and maybe reach my 3090 (I'm at 3840x1600, ultrawide resolution that is 30% less pixels than 4k). If I can match the 3090, then I'll probably run the 6900XT. Such a fun card pushing what were CPU clocks not too long ago on a GPU! I've learned reading this thread that I should run 2112 for the memory so thanks, I've yet to try and see if it nets me an uplift though because I have the 3090 in the case atm.
Anyways! Apologies for the rambling, I have 3 questions :
1) Is my card a golden sample? I think my scores are really good even the slightly lower ones, especially considering I'm on air!
2) What settings can I tweak to get even more out of it? Both in benchies but also in games? I'd like to reach my 3090
3) Is it worth tweaking the voltage in MPT? If yes, what would you suggest?
4) bonus question: any idea why these latest scores say invalid despite me not touching a thing in the settings?
Yep. Here she is chugging out silly FPS in COD Black Ops at Ultra Settings at 4K/1440P.I'd say almost yes, it's certainly not a bad one. @LtMatt has the same card as you and his is a proper golden boy, think he can run a sustained 2700 in-game clock and still has it fairly quiet running. He might be able to offer some tips
I swear if AMD had a working DLSS alternative right now things would be so much better.
The only safe value is whatever the default is tbh. I could give you a value but I'd be pulling it from my arse.Thanks a lot for taking the time to reply @JediFragger and @LtMatt
@LtMatt what would you say is a safe max power limit in mpt for the MERC? I know its PCB is very good but I was a bit weary of pushing it too hard.
Also, could you share your settings (Wattman and mpt) for the scores you achieved? Your card is super good as well it seems!
Ok good to know for the invalid scores, I think I'll just have to make a windows install for benchmarking specifically.
Yeah it seems RDNA2/Ampere shine in different games/engines. I currently play a lot of Horizon Zero Dawn and Cyberpunk, both games that favour Nvidia especially CP. Still I know in a month I'll have moved on to new games, so that doesn't bother me. The lack of DLSS is the number one thing that makes me question using the 6900XT though. I know AMD is working on their alternative, and I think it'll be the overall winner because adoption should be better than DLSS, but they only said they hope they'll be able to release it in 2021, which to me screams "we might get it out in december of 2021, early 2022 is a safe bet"... I swear if AMD had a working DLSS alternative right now things would be so much better.
Whelp I think the best thing I can do is see just how far I can push this 6900XT, and then compare with the 3090. I'd love to see your wattman and MPT settings!
I'm not sure how using MPT to increase power limit directly affects the voltage, however certainly at stock values and with the +15% in wattman, you can likely knock up to 100mv off this and get a boost to your scores. Having mine set at around 1080 mv has produced my best benchmark scores in Timespy and Firestrike.My 6900XT is a MERC Black, on the stock cooler so air. Used Morepowertool to reach 330W power limit, I then add +15% in wattman. 2720/2500 clock range, 1120 memory, 1175mv.
Availability
The SAPPHIRE NITRO+ AMD Radeon RX 6900 XT Special Edition Graphics Card is shipping now, and will be available from selected SAPPHIRE e-tailers and retailers worldwide.
Of course it will
They,AMD, wanted something to compete with the 3080ti, then binned the best chips and gave them to the aibs to make 6900xt ti,s in effectAt this point any card in stock could be branded "special edition", it is baffling why they're supposedly launching these cards when the stock versions are impossible to buy. Are they having a competition to see what partner can have the most unavailable card line?