ATI FireMV 2260 PCIe x1 's Advantages
Lower TDP (15W vs 150W)
NVIDIA GeForce GTX 660 Ti 's Advantages
Released 4 years and 7 months late
Boost Clock980MHz
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (144.2GB/s vs 8.000GB/s)
1304 additional rendering cores