As review kits are shipped and a lot of testing is going on, more and more preliminary leaks and info will come out. This round a Core i9-10900K is spotted being overclocked to a whopping 5.4 GHz, it scored 3K points in Cinebench R15

Intel's embargo has yet to pass, but as mentioned these leaks never are kept under control. There is a benchmark result doing rounds, and it shows a 10-core Core i9-10900K allegedly running at 5.4 GHz, and it finished a Cinebench R15 benchmark. The leake originates from Baidu forums (and has been removed since) running at 5.4 GHz with 1.35V voltage

The tweak allowed the processor to score ~3000 which is roughly a third faster than a 9900K at 2000 points, all in Cinebench R15 (multi-core). Considering the new PL2 state manages a TDP of 250 Watt for 56 seconds, we're more interested in the CB20 scores. The platform was an ASRock Phantom Gaming 4/AX motherboard with G.Skill DDR4-3200 MHz CL14 memory.

Sources: @OldSKoL_ via @momomo_us via Videocardz