AMD Radeon R9 M290X Mac Edition 's Advantages
Released 5 years and 5 months late
Boost Clock975MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 25.60GB/s)
976 additional rendering cores
NVIDIA GeForce GT 240M 's Advantages
Lower TDP (23W vs 80W)