Intel unlocked K series 14nm node Kaby lake i5 desktop processor Core i5 7600K preview, performans test and overclock.
Intel Core i5 7600K CPU is compatible with the Z170/H170 (BIOS Updated) and new Z270/H270 Mainboard platfoms. But If you are interested in new technologies like Intel Optane, you need to upgrade to the new Z270 and H270 range motherboards.
INTEL i5 7600K has 3.8 Ghz base and 4.2 Ghz Boost Clock. i5 7600K comes with 6 MB of L3 cache, and an integrated memory controller that supports both DDR4 and DDR3 memory.
Intel Core i5 7600K CPU-Z Screenshot
Intel Core i5 7600K Cinebench R15 Benchmark Test
Intel Core i5 7600K 3D Mark Fire Strike Extreme Test
Intel Core i5 7600K 5000 Mhz Overclocking Performance
Intel i7 7600K has 3800 MHz base clock and 4.2 Ghz Boost Clock. INTEL i5 6600K is overclocked to 5000 Mhz with 1.30~1.35 Volts.
And final words if you still have intel i5 2500k you may upgrate to Core i5 7600K. But ifyou have 6600K you dont need an upgrade for %10-15 increase.
Intel i5 7600K price will be $220 in retail markets.