3DMark is a program with a set of several 3D benchmarks. Fire Strike runs a “heavy” DirectX 11 simulation. Sky Diver also measures DirectX 11 performance, and is aimed on average computers. The Cloud Gate benchmark measures DirectX 10 performance, and the Ice Storm Extreme measures DirectX 9 performance and is targeted to entry-level computers, so we don’t ran it.
On Fire Strike benchmark, the Core i7-6950X wasn’t significantly faster than the Core i7-5960X.
On the Sky Diver benchmark, the Core i7-6950X was 8% faster than the Core i7-5960X.
On the Cloud Gate benchmark, the Core i7-6950X was also 8% faster than the Core i7-5960X.