AMD Radeon R9 M290X Mac Edition 's Advantages
Released 1 years and 6 months late
Boost Clock has increased by 22% (975MHz vs 797MHz)
Larger VRAM bandwidth (174.7GB/s vs 96.19GB/s)
64 additional rendering cores
NVIDIA GeForce GTX 770M 's Advantages
More VRAM (3GB vs 2GB)
Lower TDP (75W vs 80W)