Intel's next-gen Arrow Lake CPUs could support up to 10,000 MT/s DDR5 CUDIMM RAM, but that'll be using the Gear 2 setting which is pretty rubbish for gaming

Memory might not be the most exciting PC component, but when numbers start reaching into *counts fingers* pentuple digits I can't help but take notice. Well, it looks like CUDIMM memory is itching to make us take notice, because this relatively new type of memory is rumoured to be supported at up to 10,000 MT/s on Intel's upcoming Arrow Lake platform.

According to a leaker called Meb on Chinese blogging and social media site Weibo (via Wccftech), «If combined with CUDIMM, Arrow Lake S GEAR 2 can support 8,000-10,000 MT/s memory specifications». 

If Google's translating Meb's Chinese correctly, and if they're correct, this would mean Intel's next-gen CPUs should support much faster memory than current-gen Intel and AMD platforms. Now, I'm still rocking DDR4 RAM so I get a bit of Hertz envy from regular DDR5 RAM speeds, but support for memory at speeds of up to 10,000 MT/ is genuinely impressive.

These speeds aren't wishful thinking, either. We've already seen DDR5 CUDIMM memory kits launching with speeds well north of 9,000 MT/s lately, such as Biwin's 9,200 MT/s modules and Asgard's 9,600 MT/s modules. This latest Arrow Lake rumour would explain why manufacturers are pushing out fast kits like these right now despite the CUDIMM standard being announced by JEDEC all the way back in January.

CUDIMM memory is clocked unbuffered memory, meaning—much like CAMM2 memory that was all the rage at Computex—it has a clock driver that regenerates the clock signal to maintain signal integrity. This allows the memory to reach higher frequencies, and therefore more transfers per second, because it keeps things more stable. 

The JEDEC standard rates CUDIMM for 6,400 MT/s and higher, but it's been far surpassing this baseline for months, and now looks to be approaching 10,000 MT/s. For reference, Intel's 14th Gen CPUs officially support up to 5,600 MT/s DDR5 RAM, but we know that XMP-enabled (ie, overclocked) DDR5 RAM at faster speeds than this works just fine in most cases. That's