NVIDIA GeForce 7800 GTX 512 's Advantages
Lower TDP (108W vs 204W)
NVIDIA GeForce GTX 285 Mac Edition 's Advantages
Released 3 years and 2 months late
More VRAM (1024GB vs 512GB)
Larger VRAM bandwidth (159.0GB/s vs 51.20GB/s)
240 additional rendering cores