When AMD released the HD 3800 series of graphics cards, most people were expecting some lower end parts for those who could not afford the $170-$230 it would cost to get an HD 3800 on Newegg. AMD's response to this is the RV635 and RV620. As stated previously there will be an RV635 XT and an RV635 PRO. The RV635 XT will be officially named the HD 3670, and the RV635 PRO will be officially named the HD 3650. Much like the current HD 2600 series, the HD 3600 series will have 24 stream processors, 120 stream processing units, 16 Texture Address Units, 8 Texture Filter Units, 4 ROPs and a 128-bit memory interface. The current revision, A11, shows that the HD 3670 will run at clocks of 800MHz core and 1.6GHz memory. The HD 3650 will have core/memory clocks of 600/1000MHz, respectively. You can expect these cards to be sampled in December, and released in January, or early February at the latest. The main thing separating the HD 3600 series from the HD 2600 series is CrossFire X support, as well as all the main perks of an HD 3800: Avivo HD, DirectX10.1, UVD, and ATI PowerPlay.