AMD Radeon E9550 MXM 's Advantages
Released 3 years and 7 months late
Boost Clock1266MHz
More VRAM (8GB vs 512GB)
Larger VRAM bandwidth (160.0GB/s vs 40.00GB/s)
1920 additional rendering cores
NVIDIA GeForce GT 640M Mac Edition 's Advantages
Lower TDP (32W vs 95W)