NVIDIA GeForce GTX 275 PhysX Edition 's Advantages
Released 2 years and 2 months late
More VRAM (896GB vs 512GB)
Larger VRAM bandwidth (127.0GB/s vs 8.000GB/s)
200 additional rendering cores
ATI Radeon HD 3450 X2 's Advantages
Lower TDP (50W vs 219W)