NVIDIA GeForce GTX 460 X2 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 28.80GB/s)
16 additional rendering cores
AMD Radeon R7 240 's Advantages
Released 2 years and 7 months late
Boost Clock780MHz
More VRAM (2GB vs 1024GB)
Lower TDP (30W vs 160W)