ATI Mobility Radeon HD 5850 Mac Edition 's Advantages
288 additional rendering cores
Lower TDP (30W vs 50W)
AMD Radeon RX 540 Mobile 's Advantages
Released 7 years and 10 months late
Boost Clock1219MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (96.00GB/s vs 64.00GB/s)