New Overclocking Features
Responding to stiff competition from AMD, Intel sought to make Rocket Lake a cooler toy to have for PC enthusiasts and overclockers by introducing new ways to tweak these chips, and bringing a degree of overclocking to more users. For starters, Intel introduced memory overclocking for the mid-range H570 and B560 chipset motherboards. Earlier, mid-range Intel chipsets were infamous for not just lacking overclocking capability of any kind, but also capping memory frequency. While you still can't overclock your processor with these mid-range chipsets, the memory is unlocked when you use an 11th Gen K-series processor, so you can go ahead and pair it with a fast memory kit.
Staying with memory, Intel introduced a groundbreaking new feature: real-time memory frequency settings. This allows you to change your PC's memory frequency on the fly within Windows without rebooting. This should be particularly useful for overclockers who are trying to find the highest stable memory frequency on their machine, as it avoids wasting time on reboots.
Yet another feature introduced with the Rocket Lake memory controller is Gear 2 mode. This feature lets you run your memory controller and DRAM frequency in a 1:1 ratio (as was the case all these years) or gear down to a 2:1 ratio, which runs the memory controller at half the DRAM frequency. This grants additional stability and headroom for overclockers to push up memory frequencies. Since memory frequencies well above DDR4-4000 were possible with Comet Lake, Gear 2 mode should in theory let you crank memory frequencies up past 8000 MHz (DDR) with Rocket Lake. Engaging Gear 2 mode by design enables the 2N command rate.
Intel also introduced a couple of settings related to the AVX2 and AVX-512 instruction sets that overclockers will love. For starters, the new AVX-512 offsets let you effectively uncouple the AVX frequency scaling of your processor with your overclock, so AVX workloads don't destabilize your machine. Also introduced is the ability to completely disable AVX. When toggled in the BIOS, this feature makes the processor report to the OS that it's incapable of AVX, which forces the software to use a non-AVX execution path.