MINIMUM:
OS: 64-bit: Vista, Win 7, Win 8
Processor: Intel Core i5-750, 2.67 GHz | AMD Phenom II X4 965, 3.4 GHz
Memory: 3 GB RAM
Graphics: NVIDIA GeForce GTX 460 | AMD Radeon HD 5850
DirectX: Version 11
Network: Broadband Internet connection
Hard Drive: 25 GB available space

RECOMMENDED:
OS: 64-bit: Win 7, Win 8
Processor: Intel Core i7-3770, 3.4 GHz | AMD FX-8350, 4.0 GHz
Memory: 8 GB RAM
Graphics: NVIDIA GeForce GTX 660 | AMD Radeon HD 7950
DirectX: Version 11
Network: Broadband Internet connection
Hard Drive: 40 GB available space

I hope it won't have the same slow-mo problem. I also hope it won't be poorly optimized.

MK9 and Injustice's optimizations were pretty decent, let's hope MKX follow in their footsteps.

Also if you are getting it for PC, We could have some friendly matches :).