ATI Radeon HD 4890 's Advantages
Lower TDP (190W vs 250W)
NVIDIA GeForce GTX 780 Ti 's Advantages
Released 4 years and 7 months late
Boost Clock928MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (336.6GB/s vs 124.8GB/s)
2080 additional rendering cores