intel's Rocket Lake Desktop CPUs which include the Core i9-11900K, Core i9-11900 & Core i7-11700 have been spotted at Chiphell Forums (via Harukaze5719). All three chips are part of the 11th Gen family and feature 8 cores with 16 threads. The leaker points out that these three chips are early engineering samples & hence feature much lower clock speeds than the retail variants that will be available around Q1 '21.

Intel Core i9-11900K, Core i9-11900, Core i7-11700 8 Core, 11th Gen, Rocket Lake Desktop CPUs Spotted

Starting with the specifications, well there isn't much difference in terms of core configuration as each CPU packs 8 cores, 16 threads, 16 MB of L3 cache, and 4 MB of L2 cache. The difference here is the clock speeds and TDPs for each respective chip. The Intel Core i9-11900K is going to be the flagship CPU in the 11th Generation family and will rock a base TDP of 125W and a PL2 rating of 250W. The Intel Core i9-11900 and Core i7-11700 are standard non-K SKUs with base 65W TDPs and PL2 ratings of 225W.

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The core clocks for these chips are also not final as the Intel Core i9-11900K is rated at a base frequency of 3.40 GHz and a boost frequency of 4.8 GHz (1-core) & 4.3 GHz (all-core). The Core i9-11900 has a base frequency of 1.80 GHz and boosts up to 4.5 GHz (1-core) and 4.0 GHz (all-core). The i7-11700 also features a base clock of 1.80 GHz but has much lower boost clocks of 4.3 GHz (1-core) and 3.8 GHz (all-core). Once again, these aren't final clock speeds in any way. The Core i9-11900K will come with a 3.50 GHz base clock and a boost clock of 4.80 GHz (all-core) & 5.30 GHz (single-core TVB 3.0).

Intel 11th Gen Rocket Lake Desktop CPU Lineup Specs (Preliminary):