GinjaBoy458

so im looking to buy a displayport cable that apparently does 4k at 60hz. but my monitor does 1080p at 75hz. so im wondering if i can get this cable and use my monitor to its full extent.

Case is Silverstone RL06 Pro and Kingston HyperX 16GB RAM. Im in Adelaide, Australia and budget is $1500 AUD

So, I'm deciding for my first gaming PC build which CPU to choose. But to cool the CPU, i cant decide whether to choose a Corsair H60 or something else. i want to future proof the build to suit an upgrade to a better CPU in the future. I want the PC to run games at 1080p and it will be used for gaming and 1080p video rendering. I'm thinking about a CPU in the i5 7500 to and i5 7600k range. I'll also want a quiet cooler which does a good job cooling. If i go 7600k: go H60 or something else similar but this is more pricier. otherwise i go 7500 or 7600 with air cooling or H60, which is cheaper. So my basic question is, Choose: The I5 7500 with Air cooling or Futureproof it with the H60 (or similar) for a cheaper price. The I5 7600 with Air or the H60 for a bit more ($30), Or The I5 7600k with the H60 (or better/similar) for and extra $50