ATI Radeon HD 4890 's Advantages
Lower TDP (190W vs 250W)
NVIDIA GeForce GTX 980 Ti 's Advantages
Released 6 years and 2 months late
Boost Clock1076MHz
More VRAM (6GB vs 1024GB)
Larger VRAM bandwidth (336.6GB/s vs 124.8GB/s)
2016 additional rendering cores