Intel Core i9-11900K Flagship 8 Core CPU Rocket Lake compared in CPU-z, claims a lead in single-core performance over AMD’s Zen 3

Intel may not deliver the insane multithreaded performance that AMD’s Ryzen 5000 processors have to offer, but they are returning with a vengeance in the single-threaded segment with the leaked benchmarks of the 8 Core Rocket Lake Core i9-11900K featuring a massive a performance boost that would be enough for them to reclaim their fastest gaming processor throne.

8-core Intel Core i9-11900K flagship benchmark leaks, Rocket Lake faster than AMD’s Zen 3 ‘Ryzen 5000’ in single-core performance

The Intel Core i9-11900K is the flagship chip in the 11th generation Rocket Lake desktop processor family. It will be the first family after Skylake to use an all new base architecture while using the 14nm process node. The new Cypress Cove architecture would deliver double-digit gains in IPC, which should be enough to put Intel back on the throne of single-core performance since AMD and its Zen 3 line completely destroyed Intel’s Comet Lake processors in this department.

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Rocket Lake 8-Core 16 Thread Intel Core i9-11900K Desktop Processor Specifications

The Intel Core i9-11900K will be Rocket Lake’s flagship 11th generation processor. The chip will have 8 cores and 16 threads. This will translate to 16MB L3 cache (2MB per core) and 4MB L2 cache (512KB per core). In terms of boost clocks, we’ve seen the processor run at base frequencies of 3.5 GHz before, but when it comes to boosting, the CPU will feature a maximum boost clock of 5.2 GHz (1 core ) while the boost frequency all cores will be maintained. at 4.8 GHz.

The chip will also feature Thermal Velocity Boost which is expected to provide a 100 MHz jump in the maximum clock rate. That should lead to a 5.3GHz single-core boost clock, making it the first processor to hit such a high frequency out of the box. However, keep in mind that regardless of using Cypress Cove cores, the Core i9-11900K will have smaller cores and threads than the Intel Core i9-10900K. This is in part due to the backport of Cypress Cove on the refined 14nm process node.

Left: 10th generation of Comet Lake, right: 11th generation of Rocket Lake

The processor is said to have a first stage power limit of 125W which is standard for a flagship Intel SKU and the second stage or PL2 power limit is rated at 250W. This means that when reaching its speeds clock times, the processor could indeed extract said amount of power from the PSU, making it one of the most power-hungry 8-core chips ever produced. It could also explain why Intel didn’t use 10 cores and 20 threads on its 11th gen lineup, as it would have turned out to be a power hungry monster of a chip even breaking the 250W power limit.

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Intel 11th Gen Rocket Lake Desktop Processor Family Specifications (Preliminary):

Processor name Cores / Threads Basic clock Boost Clock (1 core) Boost Clock (all heart) Hidden Graphic TDP (PL1)
Core i9-11900K 8/16 3.50 GHz 5.30 GHz 4.80 GHz 16 MB Intel Xe 32 EU (256 cores) 125 W
Core i9-11900 8/16 1.80 GHz 4.50 GHz 4.00 GHz 16 MB Intel Xe 32 EU (256 cores) 65 W
Core i9-11900T 8/16 TBC TBC TBC 16 MB Intel Xe 32 EU (256 cores) 35 W
Core i7-11700K 8/16 3.60 GHz 5.00 GHz 4.60 GHz 16 MB Intel Xe 32 EU (256 cores) 125 W
Core i7-11700 8/16 2.50 GHz 4.90 GHz TBC 16 MB Intel Xe 32 EU (256 cores) 65 W
Core i7-11700T 8/16 TBC TBC 16 MB Intel Xe 32 EU (256 cores) 35 W
Core i5-11600K 6/12 TBC 4.90 GHz 4.60 GHz 12 MB Intel Xe 32 EU (256 cores) 125 W
Core i5-11600 6/12 TBC TBC TBC 12 MB Intel Xe 32 EU (256 cores) 65 W
Core i5-11600T 6/12 TBC TBC TBC 12 MB Intel Xe 32 EU (256 cores) 35 W
Core i5-11500 6/12 TBC TBC TBC 12 MB Intel Xe 32 EU (256 cores) 65 W
Core i5-11500T 6/12 TBC TBC TBC 12 MB Intel Xe 32 EU (256 cores) 35 W
Core i5-11400 6/12 2.60 GHz 4.400 GHz 4.20 GHz 12 MB Intel Xe 24 EU (192 cores) 65 W
Core i5-11400T 6/12 TBC TBC TBC 12 MB Intel Xe 24 EU (192 cores) 35 W

Rocket Lake 8-Core 16-Thread Intel Core i9-11900K Processor Benchmarks

Spotted by HXL, Bilibili posted a screenshot of the CPU-z benchmark with the Intel Core i9-11900K. The CPU would have scored 695.4 points in single-threaded tests and 6522.1 points in multi-threaded tests. The multi-threaded score places the Core i9-11900K at 15% faster than the Core i7-10700K and on par with the Ryzen 7 5800X.

Everything changes in single-core tests as the Core i9-11900K finishes 25% faster than the Intel Core i7-10700K, 19% faster than the Core i9-10900K, and also, 5-7% faster than the Ryzen 7 5800X and the Ryzen 9 5950X. Here is a table showing the performance comparisons between processors:


If these results are close to reality, then Intel will certainly have a powerful chip for gamers in 2021. That is, AMD will not be offering its own update or new Zen line later this year at come. But we have to take into account the higher power consumption and also the input power which will be the direct result of the 14nm architecture. In the efficiency department, AMD will always have a major lead over Intel and that shouldn’t be discontinued anytime soon or at least until Intel introduces its own 10nm SF processors (Alder Lake-S) on the market which is scheduled for 2H 2021.

Benchmarks for Intel Core i9-11900K, Core i9-11900 and Core i7-11700 ES Rocket Lake processors

In addition to the leaked CPU-z result, the Chiphell Forums have also published comprehensive tests of various Intel Rocket Lake ES processors, including the Core i9-11900K, Core i9-11900, and Core i7-11700. Note that these chips are not final variants and feature slower clock speeds.

For example, the i9-11900K runs at a base of 3.4 GHz and a boost of 4.8 GHz, the Core i9-11900 runs at a base of 1.8 GHz and a boost of 4.5 GHz while the Core i7-11700 operates at a 1.8 GHz base and a 4.4 GHz boost. These are similar tests to the ones we saw a few days ago so without further ado, the benchmarks are as follows:

Intel Rocket Lake ES processor benchmarks:

Intel Rocket Lake ES processor time and power:

Intel Rocket Lake ES Processor IPC Tests:

As we reported, the Intel Rocket Lake processors will ship months after the 500 series cards which will be available on January 11. The processors are expected to be announced at CES 2021, but a tough launch isn’t expected until March-April.

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