ATI Radeon HD 4890 's Advantages
Lower TDP (190W vs 250W)
AMD Radeon Pro W6800 's Advantages
Released 12 years and 2 months late
Boost Clock2320MHz
More VRAM (32GB vs 1GB)
Larger VRAM bandwidth (512.0GB/s vs 124.8GB/s)
3040 additional rendering cores