NVIDIA GeForce GT 445M 's Advantages
Lower TDP (35W vs 80W)
AMD Radeon R9 M290X Mac Edition 's Advantages
Released 4 years and 2 months late
Boost Clock975MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 40.00GB/s)
880 additional rendering cores