Two Intel Cascade Lake-X processors which are part of the HEDT X299 platform have leaked out in Geekbench database (via Momomo_Us). The processors include an 18 core part and a 10 core part, both of which would be based on a heavily optimized 14nm process to deliver better performance.

Intel 18 Core & 10 Core Cascade Lake-X HEDT CPUs Benchmarked In Geekbench

Both processors seem to be leaked by Dell who tested them with their Precision 5820 X-Series PCs. The Precision 5820 Tower is a high-end workstation PC that currently supports 9th Gen Core-X and Xeon W-2000 series processors on the LGA 2066 socket. Since the Precision 5820 is being used to test the upcoming HEDT processors, we can tell that those would be supported by Intel's LGA 2066 socket too. The processors are identified as GenuineIntel Family 6 Model 85 Stepping 7 confirming that these are indeed Cascade Lake-based parts and not Skylake-X designs that we have seen with 7th and 9th Gen HEDT processors.

The flagship variant is the 18 core and 36 thread part which is listed with clock speeds of 2.19 GHz base and 3.28 GHz boost. The clock speeds definitely don't look final as Intel's current 18 core part, the Core i9-9980XE has clocks of 3.00 GHz base and 4.40 GHz boost. The other part is the 10 core variant with 20 threads. This processor is clocked at 3.40 GHz base and 4.60 GHz boost which is in line with the current HEDT 10 core part that has a base clock of 3.50 GHz and a boost clock of 4.50 GHz.

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In terms of performance, the 18 core variant has a single-core score of 5387 points and a multi-core score of 54597 points. The 10 core variant has a single-core score of 5468 points and a multi-core score of 39820 points. The 18 core variant is about as fast as the Ryzen Threadripper 2970WX (24 Core / 48 Thread) while the 10 core part is about as fast as the Ryzen Threadripper 2920X (12 core / 24 Thread).

Intel HEDT Processor Families: