Hello everyone, I'm new to the site and to building a PC as I've never done it before. I was wondering if this build would be good enough to run games such a GTA V, Project cars and BF4 in ultra or high settings in 4k. Also is everything compatible to work together? As well, I'm stuck between the 2 coolers I've listed and do i need to get additional fans? My budget is around £1500 for the PC
Motherboard - Asrock Z97 Extreme6
CPU - Intel Core i7-4790K
Graphics Card - EVGA NVIDIA GeForce GTX 980 Ti
Cooler - NZXT Kraken RL-KRX61-01 X61 or Corsair Hydro Series H100i GTX
PSU - Corsair RM 1000W
RAM - Corsair 8GB DDR3 1600MHz x4
Case - NZXT Phantom 530
SSHD - Seagate SSHD 1TB x2
Monitor - Acer K242HQK
Thank you!
EDIT:
would a Asus Sabertooth Z87 motherboard be better for Overclocking?
Motherboard - Asrock Z97 Extreme6
CPU - Intel Core i7-4790K
Graphics Card - EVGA NVIDIA GeForce GTX 980 Ti
Cooler - NZXT Kraken RL-KRX61-01 X61 or Corsair Hydro Series H100i GTX
PSU - Corsair RM 1000W
RAM - Corsair 8GB DDR3 1600MHz x4
Case - NZXT Phantom 530
SSHD - Seagate SSHD 1TB x2
Monitor - Acer K242HQK
Thank you!

EDIT:
would a Asus Sabertooth Z87 motherboard be better for Overclocking?