NVIDIA GeForce GTX 275 PhysX Edition 's Advantages
Larger VRAM bandwidth (127.0GB/s vs 57.73GB/s)
48 additional rendering cores
NVIDIA GeForce GTS 450 Rev. 2 's Advantages
Released 1 years and 1 months late
More VRAM (1024GB vs 896GB)
Lower TDP (106W vs 219W)