The listing, Ati radeon HD4850 512MB has ended.
This was in my 2009 dell studio xps. It works fine. I bought a gtx 680 to replace it.
956 million transistors on 55nm fabrication process
PCI Express 2.0 x16 bus interface
256-bit GDDR3/4 memory interface memory interface
Microsoft® DirectX® 10.1 support
Shader Model 4.1
Adaptive super-sampling and multi-sampling
Gamma correct
Super AA (ATI CrossFireX™ configurations only)
All anti-aliasing features compatible with HDR rendering
Texture filtering features
2x/4x/8x/16x high quality adaptive anisotropic filtering modes (up to 128 taps per pixel)
128-bit floating point HDR texture filtering
sRGB filtering (gamma/degamma)
Percentage Closer Filtering (PCF)
Depth & stencil texture (DST) format support
Shared exponent HDR (RGBE 9:9:9:5) texture format support
OpenGL 3.2 support
ATI Avivo™ HD Video and Display Platform6
Unified Video Decoder 2 (UVD 2) for H.264/AVC, VC-1, and MPEG-2 video formats
High definition (HD) playback of Blu-ray and HD DVD video
Dual stream (HD+SD) playback support
DirectX Video Acceleration 1.0 & 2.0 support
Support for BD-Live certified applications
Hardware DivX and MPEG-1 video decode acceleration
Accelerated video transcoding & encoding for H.264 and MPEG-2 formats