The XFX AMD lineup includes Radeon HD 4870, 4850, 4830, 4650, and 4350 cards. XFX offers the Radeon HD 4870 with either 512MB or 1GB of memory, and both variants are available with either stock specifications or "factory overclocked" speeds of 775MHz for the GPU and 950MHz for the memory. As with its Nvidia offerings, XFX differentiates "overclocked" models using its XXX trademark.
Going down the price ladder, XFX's Radeon HD 4850 and 4830 both have stock clock speeds, but XFX has outfitted them with black, rectangular dual-slot coolers that would look right at home on GeForces (see the image gallery below). The new lineup also includes Radeon HD 4650 cards with 512MB and 1GB of DDR2 RAM clocked at a respective 800MHz and 1000MHz. XFX says some of its 4650s have HDMI and DisplayPort outputs, too, although we can't see any differences in the individual product descriptions.
Right now, none of these cards seem to have popped up at Newegg, Buy.com, NCIX, or TigerDirect. We'll bring you an update with pricing information when that changes.