Yeah I think it is a great CPU but at that price I would spend a little extra and get R5 1600. But it is a good CPU if you wanna go with it. Even though it has same cores and threads like a 7700k it cannot match it all the time in gaming but the results are satisfactory.
It has a great base clock and has double the l3 cache of the 1400- it's a great CPU. Make sure you spend your saved money on some quality ram to get the most out of it
1500X is great for a no-OC-wanted-Build. Like for that friend who only plays minecraft and is afraid of even you touching the clocks on his new PC. Also you can get away with just a B320 board, which saves some additional bucks.
No idea.. I've got a 1600x .. Such a headache as far as RAM is concerned. The CPU themselves are good. Get an Asus motherboard, I think they're the most "reliable" for solid performance and RAM compatibility.
just get a 1600, you can still get good overclocks for cheaper, tbh I don't find the X series chips worth it except for the 7 1800X and that's if you're an OC enthusiast