Core i5-2500K vs Core i5-3570K vs Core i5-4670K vs Core i5-6600K vs Core i5-7600K vs Core i5-8600K vs Core i5-9600K vs Core i5-10600K Bottleneck: RTX 2080 Ti Analysis - CPUAgent
Core i5-8600K has performance similar to Core i7-7700K
Core i7-2600K vs Core i7-3770K Doom Benchmarks - CPUAgent
Intel comparing 7th gen vs 10th gen CPU gaming performance, but not really mentioning their GPUs. 7th gen had a 1080 while 10th gen had a 2080 : r/pcmasterrace