Seems to be about £10 cheaper than other stores.
Reviews have been very good so far, due to be released 22/09/08 according to Play.com.
Loaded with the latest features, the ATI RadeonHD 4600 Series graphics cards deliver a level of gaming performance previously only found in high-end graphics cards. Redefine the way you play HD games and enjoy unprecedented levels of graphics realism powered by 320 stream processing units, 512MB of memory and support for Microsoft DirectX®10.1 games. Upgrade your graphics card and watch Blu-ray movies and play HD content with incredible visual fidelity1or take your experience to another level with new multimedia capabilities. Do it all with break-through energy efficiency that doesnt compromise performance.
320 stream processing units, 128-bit memory interface
24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
Dual mode ATI CrossFireX multi-GPU support for highly scalable performance
PCI Express® 2.0 support
Dynamic geometry acceleration, Game physics processing capability
ATI Avivo HD video and display technology*
Unified Video Decoder 2 (UVD 2) for Blu-rayand HD Video
Accelerated Video Transcoding(AVT)