Radeon HD 6450 Its a tiny card the PCI Express x16 slot it fits in, and doesnt even require any auxiliary power.
Its also half-height and fairly quiet, so will be a good card for a slim media centre PC.
Requires Expansion Slot Standard: PCI Express 2.1 x16
Video Chipset: AMD Radeon HD 6450
GPU Core Name: Caicos
GPU Quantity: 1
GPU Core Speed: 625 MHz
Stream Processors Quantity: 160
Texture Mapping Unit Quantity: 8
Random Access Memory Digital to Analog Converter Speed: 400 MHz
2D/3D Features: ATI Eyefinity HDCP(High-Bandwidth Digital Content Protection) ATI PowerPlay AMD App Acceleration AMD HD3D Technology
API Supports: DirectX 11.0 OpenGL 4.1 OpenCL 1.1
Video Memory Type: Video Controller Memory
Memory Type: DDR3 SDRAM
Installed Video Memory Storage Capacity: 1024 MB
Video Memory Speed: 1333 MHz
Memory Bus Bandwidth: 64 bit
VGA Interface Quantity: 1
VGA Interface Connector Type: 15 Pin D-Sub
DVI Interface Quantity: 1
DVI Interface Connector Type: 29 Pin DVI-I Gold
HDMI Interface Quantity: 1
HDMI Interface Connector Type: HDMI (Type A)
Software Included: Drivers
Package Type: Retail
Cooling System Type: VGA Cooler
Depth: 18 mm
Height: 69 mm
Width: 145 mm
Warranty Products returnable: Yes
Warranty validation Criteria: Serial Number
Pieces in pack: 1