XFX ATI Radeon HD 5670 1 GB (GDDR5)

The price is fixed. No burgannig . Used 2 years. . Its your choice.
Details Are Given Below:

...627 million 40nm transistors
TeraScale 2 Unified Processing Architecture
400 Stream Processing Units
20 Texture Units
32 Z/Stencil ROP Units
8 Color ROP Units

GDDR5 memory interface

PCI Express 2.1 x16 bus interface

Image quality enhancement technology
Up to 24x multi-sample and super-sample anti-aliasing modes

128-bit floating point HDR rendering

ATI Eyefinity multi-display technology
Three independent display controllers
Drive three displays simultaneously with independent resolutions, refresh rates, color controls, and video overlays

ATI CrossFireX™ multi-GPU technology6
Dual GPU scaling

Dual-stream 1080p playback support
DXVA 1.0 & 2.0 support

Integrated dual-link DVI output with HDCP12
Max resolution: 2560x160013

Integrated DisplayPort output
Max resolution: 2560x160013

HDMI® (With 3D, Deep Color and x.v.Color™)
Max resolution: 1920x120013

SPEEDS & FEEDS
Engine clock speed: 775 MHz
Processing power (single precision): 620 GigaFLOPS
Polygon throughput: 775M polygons/sec
Data fetch rate (32-bit): 62 billion fetches/sec
Texel fill rate (bilinear filtered): 15.5 Gigatexels/sec
Pixel fill rate: 6.2 Gigapixels/sec
Anti-aliased pixel fill rate: 24.8 Gigasamples/sec
Memory clock speed: 1.0 GHz
Memory data rate: 4.0 Gbps
Memory bandwidth: 64 GB/sec
Maximum board power: 64 Watts