An i5 will have 100% load even more so if your running above 60fps, My i7 will run between 25%-50%, with a demanding game like gta online, At 60fps but when i unlock it to run closer to my monitor's refresh rate the CPU will hit 90+% load at times.
Car Audio and PC Enthusiast. System Specs:CPU:Intel-Core i7 4790k 4Ghz quad-core processor, COOLER: Corsair H80i V2, MOBO:MSI Z97A Gaming 7, RAM:Kingston Savage 16gb (2x8) 1866mhz, SSD:Samsung 850 evo-series 250gb, HDD:WD black 7200rpm 1tb, GPU:MSI geforce GTX 980ti gaming 6G, CASE:Corsair carbide 230t black, PSU:EVGA 850W G2 80+GOLD.