Monday, July 27th 2020
Intel to Clock "Rocket Lake-S" High, Evidence of an ES with 5.00 GHz Boost
Intel's 11th Generation Core "Rocket Lake-S" desktop processors in the LGA1200 package could come with clock speeds that are of the norm these days. Intel appears unwilling to dial down clock speeds in the wake of increased IPC with the new generation "Cypress Cove" CPU cores that drive these processors. Twitter handle "leakbench," which tracks interesting Geekbench results, fished out a database listing for a "Rocket Lake-S" engineering sample with clock speeds of 3.40 GHz base, and 5.00 GHz boost.
The listing has all the telltale signs of "Cypress Cove," such as 48 KB L1D cache, 512 KB per core L2 cache, and 16 MB shared L3 cache for this 8-core/16-thread chip. "Cypress Cove" is rumored to be to be a back-port of Intel's "Willow Cove" CPU core design from its original 10 nm+ node to the 14 nm++. VideoCardz compared this "Rocket Lake-S" ES benchmark result to that of a retail Core i7-10700K, and found its single-threaded performance to be roughly 6.35 percent higher despite a 200 MHz clock-speed deficit, although for some reason, its multi-threaded performance is trailing by over 15 percent.
Sources:
Geekbench Database, Leakbench, VideoCardz, HardwareLeaks
The listing has all the telltale signs of "Cypress Cove," such as 48 KB L1D cache, 512 KB per core L2 cache, and 16 MB shared L3 cache for this 8-core/16-thread chip. "Cypress Cove" is rumored to be to be a back-port of Intel's "Willow Cove" CPU core design from its original 10 nm+ node to the 14 nm++. VideoCardz compared this "Rocket Lake-S" ES benchmark result to that of a retail Core i7-10700K, and found its single-threaded performance to be roughly 6.35 percent higher despite a 200 MHz clock-speed deficit, although for some reason, its multi-threaded performance is trailing by over 15 percent.
33 Comments on Intel to Clock "Rocket Lake-S" High, Evidence of an ES with 5.00 GHz Boost
Citation needed :rolleyes:
On both sides are some results a little worse or a little better (9900K stock and 3700X database of stocks setting)
stock Ryzen 7 3700X vs Rocket Lake
stock i9-9900K vs Rocket Lake
Yeah if you can't tell, I'm not impressed by Intel lately.
The controversy at the time was that Intel was pushing the whole "benchmarks don't matter" narrative; without benchmarks, where do you get IPC tests from? AVX512 wins are blatantly obvious, because the margins are obvious.
Call it for what it is - cheating with AVX512 Ice Lake wasn't. Ice Lake was a promising new uarch stuck on a dung pile of a process that hit a voltage wall long before 4GHz, resulting in a barely competitive, equally warm mobile chip as its predecessors. Sunny and Willow are bigger cores than Skylake, just don't expect 5.3GHz TVB and 10 cores.
(Sunny Cove was 18% BTW)The main feature of Willow Cove is more L2 and L3 cache.
Here look at this table, which one does Rocket Lake most closely resemble?