Rocket Lake-S could be substantially faster for games than the current Comet Lake-S
Intel Rocket Lake-S processors, the 11th generation for desktop PCs that will arrive in March 2021, but they be able to beat AMD Ryzen 5000 in gaming, that's the new and unprecedented thumb of rule in 2021.
Social media leaker ITCooker thinks that the three strongest points of the new generation of processors could be in favor of Intel. Support for the PCI-Express 4.0 interface is mentioned and that the use of the AVX512 instructions can achieve better performance, although this leads to the flagship 8-core CPU getting a lot of temperature. He talks about an improvement in the CPU cache memory, with 48 KB for the level 1 (L1) cache and 512 KB for the L2 cache. These numbers are remarkable when compared to the current Comet Lake-S (32 KB L1 / 256 KB L2).
The leaker also reports that despite continuing to be based on 14 nm, thanks to the new architecture we will see "a real jump in performance", indicating that we will have a significant improvement in the gaming section.
A second 'leak'
It's hearsay, and not much more. But Twitter user MebiuW (Twitter (1) , Twitter (2)) claims to have information about the upcoming i7 and i9 CPUs. Both the Core i7 and i9 are said to have 8 cores and 16 threads, combined with 16MB of L3 cache. The i9 has to distinguish itself by higher clock speeds, for a higher price. With a boost clock around 5.5 GHz, the Core i9 would be positioned against the Ryzen 7 5800X at the same price of $ 449. The i7 has to do with a maximum boost clock of 5 to 5.2 GHz, and should compete against a future Ryzen 7 5700X. According to the Twitterer, the Intel CPU will change hands for less than $ 400.
Now, there's no substantial source info for that, 5.5 GHz seems way too far fetched for a 14nm processor. But hey, sho knows, these are exciting times in the CPU arena.
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I personally do not care for the Ghz. The important is the architecture, software people will find a way to exploit it to its best.
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If this is finally Sunny Cove architecture, then it will certainly be faster than their existing Skylake architecture. Faster than Zen3? Possibly..
The extra IPC may affect the clocks they are able to achieve with it however...
No its not Sunny Cove, this should be based on Willow Cove, the successor to Sunny Cove, so its better than you thought

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Besides high clocks, what also matters that it's gonna a be a new...sorry, a good and stable 14nm technology.

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IPC increase is the result of more transistors. More execution units, more parallelization, more cache, wider data paths and so on. The entire thing gets "wider".
When stuck on the same node, more transistors mean more power used at the same clock, and obviously more heat generated.
Increasing transistor count (IPC) AND clocks on the same node while keeping the chip within allowed power envelope is pretty much impossible, and it's not like they haven't already optimized everything to the max.
If this Rocket Lake has indeed (much) higher IPC, we might see a significant reduction in attainable clock speeds as well (potentially back to 4 Ghz or so), as lower clocks also bring more efficiency per transistor.
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If this is finally Sunny Cove architecture, then it will certainly be faster than their existing Skylake architecture. Faster than Zen3? Possibly..
The extra IPC may affect the clocks they are able to achieve with it however...