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6-core / 12-thread Rocket Lake-S CPU early benchmarks reveal disappointing performance gains over Comet Lake-S

Intel's Rocket Lake-S CPUs are expected to launch in late 2020. (Image Source: Videocardz)
Intel's Rocket Lake-S CPUs are expected to launch in late 2020. (Image Source: Videocardz)
The boost clocks reported by 3DMark for the 6-core / 12-thread Rocket Lake-S CPU suggest that this could be a replacement for the Comet Lake-S i5-10400 CPU. The disappointing part is that there are no performance gains as far as CPU cores go, as the Rocket Lake-S engineering sample proves to be slightly slower than the Comet Lake-S model. It does, however, deliver better graphics performance thanks to the new Xe iGPU.
Bogdan Solca,

The Comet Lake-S CPUs are barely cutting it against AMD’s Ryzen 3000 CPUs, and the red team will most likely get a significant advantage with the upcoming Ryzen 4000 models. We already know that Intel’s answer to the Zen 3 desktop CPUs will be the Rocket Lake-S processors expected to launch by the end of 2020 with a new microarchitecture that adopts the Willow Cove cores from the Tiger Lake mobility CPUs. The disappointing part is that the upcoming Rocket Lake desktop chips will once again be manufactured on the super-refined 14 nm node, so there will not be significant power efficiency improvements and the performance might also see minimal gains. If that is not disappointing enough, we now get a glimpse of some possible performance figures thanks to a set of 3DMark scores spotted by reliable leakers TUM_APISAK and _rogame.

The engineering sample spotted in the 3DMark database comes with 6 cores and 12 threads clocked at 3.5 GHz. Even though the database entry reports 4.1 GHz boost clocks, _rogame explains that there are some results that show 4.2 GHz boost clocks, but he only included pictures for the best results. Judging only by base and boost clocks, this chip appears to be a successor to the freshly released Comet Lake-S i5-10400 CPU that boosts up to 4.3 GHz.

Due to that 100 MHz difference, the Rocket Lake model managed to score only 11,887 points in the physics test compared to the 12,828 points scored by the i5-10400, but it got a marginally better graphics score of 1,900 points over 1,822, via the performance boost from the Xe iGPU. Sure, this is an engineering sample and we could see better performance on the final versions. However, we were expecting to already see performance gains, since the Rocket Lake chips are rumored to get significantly increased power limits.

At least we can take solace in the fact that the upcoming Rocket Lake-S CPUs are still compatible with the LGA 1200 socket and we’ll finally be able to access those PCIe 4.0 lanes that are inactive on some of the new Z490 motherboards. The Xe iGPUs should also be quite a bit faster, while Intel is promising to add Thunderbolt 4 and USB 3.2 20G support, as well.

6-core / 12-thread Rocket Lake-S engineering sample results (Source: 3DMark)
6-core / 12-thread Rocket Lake-S engineering sample results (Source: 3DMark)
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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2020 05 > 6-core / 12-thread Rocket Lake-S CPU early benchmarks reveal disappointing performance gains over Comet Lake-S
Bogdan Solca, 2020-05-22 (Update: 2020-05-22)
Bogdan Solca
Bogdan Solca - News Editor
I stepped into the wonderous IT&C world when I was around 7. I was instantly fascinated by computerized graphics, be them from games or 3D applications like 3D Max. I like to keep myself up to date with all the new technologies that get released at an ever increasing rate these days. I'm also an avid SciFi reader, an astrophysics aficionado and, as of late, a crypto geek.