AMD Radeon R9 M290X Mac Edition 's Advantages
Released 2 years and 10 months late
Boost Clock975MHz
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (174.7GB/s vs 51.20GB/s)
544 additional rendering cores
AMD Radeon HD 7690M XT Rebrand 's Advantages
Lower TDP (25W vs 80W)