Sapphire Radeon HD 6970 2 GB DDR5 DL-DVI-I/SL-DVI-D/HDMI/Dual Mini DP PCI-Express Graphics for $309.99

The new SAPPHIRE HD 6970 uses a new GPU architecture from AMD which features dual graphics engines in one chip with 24 SIMD engines and a total of 1536 stream processors with 96 texture units, providing massively parallel computing power for graphics and other accelerated applications. Its core clock speed of 880MHz, together with a dedicated high speed interface to 2GB of GDDR5 memory running at 1375MHz (5.5Gb/s effective) delivers the highest performance in this series.