Integrated video performance
The Core i7-6700K used the Intel HD Graphics 530 graphics engine, which is the “mainstream” engine of the sixth generation Intel CPUs, being actually the same engine found on the Core i3-6100. On the other hand, the Core i7-5775C uses the Iris Pro 6200 engine, which is a “professional” graphics engine from Intel.
To check the performance of the Core i7-6700K integrated video, we ran the 3DMark with the integrated video only, removing the independent video card from the computer.
On the Fire Strike benchmark, the Core i7-5775C video engine was 41% faster than the Core i7-6700K’s.
On the Sky Diver benchmark, the Core i7-5775C’s integrated video was 20% faster than the Core i7-6700K’s.
On the Cloud Gate benchmark, the Core i7-5775C was 15% faster than the Core i7-6700K.