Today we can finally show you how Intel's new octa-core 9th-gen processors perform. On hand for testing we have the Core i9-9900K, an 8 core/16 thread processor that operates at 3.6 GHz, boost as high as 4.7 GHz on all cores with a max single core frequency of 5 GHz. We also have the i7-9700K which is essentially the same CPU, but crucially, with Hyper-threading disabled.