Well, on the X platforms the CPUs have more PCI lanes, so you might get some more stable SLI performance. Another thing is the 5820K has 6 cores over the 6700K's 4, although the 6700K is a bit better in single threaded performance. Generally speakign that IS better for gaming, but they're both already so fast that it hardly matters at that point, and having more cores on a high end Intel CPU will be more future proof for when games really start to take advantage of them.

Well, on the X platforms the CPUs have more PCI lanes, so you might get some more stable SLI performance. Another thing is the 5820K has 6 cores over the 6700K's 4, although the 6700K is a bit better in single threaded performance. Generally speakign that IS better for gaming, but they're both already so fast that it hardly matters at that point, and having more cores on a high end Intel CPU will be more future proof for when games really start to take advantage of them.

Well, on the X platforms the CPUs have more PCI lanes, so you might get some more stable SLI performance. Another thing is the 5820K has 6 cores over the 6700K's 4, although the 6700K is a bit better in single threaded performance. Generally speakign that IS better for gaming, but they're both already so fast that it hardly matters at that point, and having more cores on a high end Intel CPU will be more future proof for when games really start to take advantage of them.