New Intel Core i9-12900K sample spotted with DDR5-8000 RAM

We’re only a few weeks away from Alder Lake’s official reveal, so it should be no surprise that more leaks are surfacing online. The latest one seems to suggest that Intel’s 12th generation CPUs will have a robust memory controller that will allow enthusiasts to push DDR5 memory higher than DDR4 has ever gone.

We’ve seen a string of Alder Lake leaks as of late, but most were related to how well Intel’s upcoming Core i9-12900K CPU performs against AMD’s Ryzen 9 5950X, which is the current performance king. The Core i9-12900K, at least in its early incarnations, seems to be the best desktop part to come out of Team Blue’s lab in a while, but there are still too many unknowns left to make a clear judgment about its potential.

There’s been a lot of speculation around DDR5 and how it will influence Alder Lake’s performance in specific scenarios such as gaming. The new CPUs will support both DDR4 and DDR5, and most of the leaks we’ve seen so far have been from a Core i9-12900K paired with DDR5 memory.

If a new leak from Twitter user REHWK is valid, Alder Lake CPUs will come with a robust memory controller that will be a gift to enthusiasts who love to take RAM to the extreme. In the CPU-Z screenshot shared by the leaker, we also get a further confirmation for the general specifications of the Core i9-12900K, a 16-core, 24-thread part with a TDP rating of 125 watts and no AVX-512 support.

In this new leak, the Alder Lake part appears to be paired with Gigabyte’s DDR5-6200 memory kit on a Z690 Aorus Tachyon motherboard. By default, the DDR5-6200 memory will operate at DDR5-4800 speeds as per the JEDEC spec, with 42-39-39-77-116 timings at 1.1V. Under the XMP-6200 profile, timings are set a bit tighter to 38-38-38-76-125, but the operating voltage is bumped to 1.5V for stable operation. Otherwise, there’s another XMP-6400 profile with more relaxed timings and an operating voltage of 1.45V.

To put things in context, an interesting feature that debuted with Rocket Lake is Gear modes, which are Intel’s response to AMD’s Infinity Fabric modes for memory overclocking. Gear 1 allows you to run the memory controller and the memory itself at the same frequency, while Gear 2 and Gear 4 allows you to run them at different frequencies. In the case of Gear 2, the memory controller runs at half the frequency of the memory, and the latter mode allows the memory controller to run at one-quarter of the memory frequency.