ATI Mobility Radeon HD 5770 's Advantages
Lower TDP (30W vs 250W)
AMD Radeon R9 M395 Mac Edition 's Advantages
Released 5 years and 4 months late
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 51.20GB/s)
1392 additional rendering cores