ATI Mobility Radeon HD 5850 's Advantages
Lower TDP (30W vs 250W)
AMD Radeon R9 M395X Mac Edition 's Advantages
Released 5 years and 4 months late
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 64.00GB/s)
1248 additional rendering cores