NVIDIA GeForce GTX 275 PhysX Edition 's Advantages
More VRAM (896GB vs 512GB)
Larger VRAM bandwidth (127.0GB/s vs 8.528GB/s)
80 additional rendering cores
AMD Radeon HD 7450 OEM 's Advantages
Released 1 years and 11 months late
Lower TDP (18W vs 219W)