NVIDIA GeForce 8800 GT Mac Edition 's Advantages
Lower TDP (125W vs 150W)
AMD Radeon R9 270 's Advantages
Released 5 years and 9 months late
Boost Clock925MHz
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (179.2GB/s vs 57.60GB/s)
1168 additional rendering cores