Bungie has released the pc specs today. Beta releases on Aug. 28.

Recommended Spec

CPU

Intel - Core i5-2400
AMD - Ryzen R5 1600X

GPU

Nvidia - GeForce GTX 970
AMD - Radeon R9 390

RAM

8GB

Minimum Spec

CPU

Intel - Core i3-3250
AMD - FX-4350

GPU

Nvidia - GeForce GTX 660 2GB
AMD - Radeon HD 7850 2GB

RAM

6GB

Bungie was running an Core i7-7700K with a 1080ti during the pc reveals for 4k 60fps. So not sure if that is the minimum for 4k 60fps

Probably the minimum for 4k 60fps at ultra. The 1080 handles most games at 4k 60fps with some reasonable settings tweaks. Allegedly the game will be pretty well optimized so I guess we'll see how true that is in a month. The processor is less important at higher resolutions since the framerate isn't going to be as high, so I doubt a 7700k will be necessary for 4k, although I'm sure it will be for high refresh rates w/ lower resolutions. Supposedly it will be somewhat CPU intensive but the devs did say in an interview that it will scale to however many cores are available, so hopefully this will really shine on all these multi core (4+) CPUs coming out

Interesting that a 660 will still run it, even if it is the minimum.