I have never used an AMD processor, not to say it doesn’t have it’s merits, I am just partial to Intel. The clock speed is higher than an equivalent Intel chip, but the L1/L2 cache is a bit lower, and doesn’t have a L3 cache, and it is hyper-threaded, meaning there are 2 physical cores and 2 virtual ones (at least that is how some of their chips are, not 100% sure on , it says 4 cores, but also says it uses virtualization, you would have to look into it more to find out for sure sorry).
So if the price for Intel’s chips are too high for your budget, I don’t see any technical reason for it to not work, it more comes down to how well it will work with it. I don’t see the 6790k on the list there, not sure if it means it is below all of those chips or if the list just didn’t include it. But I don’t see why it wouldn’t work, and you can always upgrade the chip later on. So just go with the best you can afford.