These 2 cards wondering which one is better.....
http://www.microcenter.com/product/403002/N660_TF_2GD5-OC_NVIDIA_GeForce_GTX_660_Twin_Frozr_III_Overclocked_2048MB_GDDR5_PCIe_30_x16_Video_Card
http://www.microcenter.com/product/387743/7850TWNFRZ2D5OC_Radeon_HD_7850_Twin_Frozr_2048MB_GDDR5_PCIe_30_x16_Video_Card
http://www.microcenter.com/product/403002/N660_TF_2GD5-OC_NVIDIA_GeForce_GTX_660_Twin_Frozr_III_Overclocked_2048MB_GDDR5_PCIe_30_x16_Video_Card
http://www.microcenter.com/product/387743/7850TWNFRZ2D5OC_Radeon_HD_7850_Twin_Frozr_2048MB_GDDR5_PCIe_30_x16_Video_Card