It appears that ASRock tuned the cooler for low temperatures at the expense of ultra-quiet operation. That’s fine with us though, this is a performance oriented card. And honestly we couldn’t detect any audible difference when selecting the silent BIOS. Power consumption is high, and it may be the secret behind the Navi 21 XTXH silicon. Where an otherwise equal RX 6900 XT system pulled 454W from the wall under a full gaming load, the OC Formula saw 534W. That tells us the card itself is pulling some 70W+ more than a reference RX 6900 XT. It’s up to you whether this loss in efficiency is worth the extra performance or not. We can’t say goodbye to the OC Formula without testing out its OC prowess, albeit with the stock cooler. ASRock might not appreciate us dusting off the old LN2 pot for a spot of 3DMark fun. We increased the clocks to 2,790MHz on the core and 2,140Mhz on the memory. It was actually stable higher than this but power limitations led to lower benchmark results. There are ways around this though if you scour the internet. Using TimeSpy Extreme this gave us a boost from an already impressive 8573 to 8913 when overclocked. That's higher than the top score we pulled from the Zotac RTX 3080 TI AMP Holo (opens in new tab), and seriously impressive. The ASRock RX 6900 XT OC Formula is a fast card, then. Its problem is that it’s listed for $2,270 direct from Newegg (opens in new tab). That's not a price some dodgy Ebay reseller has priced it at, that's 'proper' retail.
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