9900 is piece of crap compared to the nvidia gtx295 (1.7Gb) and the asus mars dual gtx285(4Gb)
http://www.techpowerup.com/95445/ASUS_Designes_Own_Monster_Dual-GTX_285_4_GB_Graphics_Card.html
http://www.nvidia.com/object/product_geforce_gtx_295_us.html