you're "stepping up" from a 4790K(which i have in my gaming rig)? dude, you're pretty much making a sidegrade, not an upgrade. intel has been stagnating and not really innovating much at all lately except for SSDs and thunderbolt connectivity. it hasn't really been worth it to upgrade at all on their non-socket 2011 platforms since the 4790k unless you want to bypass their DRM and get 4K netflix in windows 10(which has to do with a CPU encoder being used for special instructions that are necessary for the way windows 10 handles that). if anything changing to a good Z97 motherboard from ebay with the latest bios update so you could overclock the sheeit out of it would have been a better choice.

I looked at the multithreaded benchmarks and there is a 35 to 40 percent difference between the 1800x and 4790k. Also some newer games run better with more than 4 cores. Also, since DDR4 memory has higher clock speeds (3GHz+), runs cooler and is less expensive per gigabyte it is a win. I also run virtual machines for various OSes (the additional cores come in handy).