XFX has had some fantastic custom Big Navi graphics cards with its Radeon RX 6000 series cards in the new Speedster MERC 319 range — with the XFX Radeon RX 6800 XT Speedster MERC 319 kicking ass — and now we have the new XFX Radeon RX 6700 XT Speedster MERC 319 BLACK in for review.