ATI Mobility Radeon HD 5830 's Advantages
Lower TDP (24W vs 80W)
AMD Radeon R9 M290X Mac Edition 's Advantages
Released 4 years and 10 months late
Boost Clock975MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (174.7GB/s vs 25.60GB/s)
224 additional rendering cores