The 6850k is on sale at Microcenter for $299 this week. That is a wonderful deal, especially if you run sli or have multiple NVME SSDs. I would go for the 6850k for that price over the 1700. You wont have to deal with the RAM speed and compatibility problems either. However, the X99 boards cost a lot more than the AMD4 boards. So if you have the cash, then I would go for the 6850k.