AMD Radeon HD 7970 X2 's Advantages
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (264.0GB/s vs 80.19GB/s)
1536 additional rendering cores
NVIDIA GeForce GTX 750 's Advantages
Released 1 years and 6 months late
Boost Clock1085MHz
Lower TDP (55W vs 500W)