well depends on what you play. 4C/4T CPUs are starting to bottleneck games like BF1, Watch dogs 2, The Division, The Witcher 3, Ghost Recon Wildlands, GTA V, Rise of the Tomb Raider. That said if your not game streaming a solid 4C/8T drop in solution like the i7 4790K would add another 3-5 years to your platform. where as if you use well threaded games your i5 4690K is already hurting in some AAA games and in another year or 2...will be hurting in a lot of AAA games.