These 7th Generation Intel Core CPUs are the most affordable quad-core Intel processors.

Intel Core i5 7500 Kaby Lake Desktop Processor/CPU

Intel Core i5 7500, S 1151, Kaby Lake, Quad Core, 4 Thread, 3.4GHz, 3.8GHz Turbo, 6MB Cache, 1100MHz GPU, 65W, CPU, Box

Intel Core i5 7600K Unlocked Kaby Lake Desktop Processor/CPU

Intel Core i5 7600K, S 1151, Kaby Lake, Quad Core, 4 Thread, 3.8GHz, 4.2GHz Turbo, 6MB Cache, 1150MHz GPU, 91W, CPU, Box

Intel Core i7 7700 Kaby Lake Desktop Processor/CPU

Intel Core i7 7700, S 1151, Kaby Lake, Quad Core, 8 Thread, 3.6GHz, 4.2GHz Turbo, 8MB Cache, 1150MHz GPU, 65W, CPU, Box

Intel Core i7 7700K Unlocked Kaby Lake Desktop Processor/CPU

Intel Core i7 7700K, S 1151, Kaby Lake, Quad Core, 8 Thread, 4.2GHz, 4.5GHz Turbo, 8MB Cache, 1150MHz GPU, 91W, CPU, Box