In short: We’re only some weeks away from Alder Lake’s official reveal, so it needs to be no shock that extra leaks are surfacing on-line. The most recent one appears to counsel that Intel’s twelfth technology CPUs can have a strong reminiscence controller that may enable fans to push DDR5 reminiscence larger than DDR4 has ever gone.
We have seen a string of Alder Lake leaks as of late, however most had been associated to how nicely Intel’s upcoming Core i9-12900K CPU performs towards AMD’s Ryzen 9 5950X, which is the present efficiency king. The Core i9-12900K, not less than in its early incarnations, appears to be the very best desktop half to return out of Crew Blue’s lab shortly, however there are nonetheless too many unknowns left to make a transparent judgment about its potential.
There’s been a variety of hypothesis round DDR5 and the way it will affect Alder Lake’s efficiency in particular eventualities similar to gaming. The brand new CPUs will assist each DDR4 and DDR5, and a lot of the leaks we have seen up to now have been from a Core i9-12900K paired with DDR5 reminiscence.
If a brand new leak from Twitter person REHWK is legitimate, Alder Lake CPUs will include a strong reminiscence controller that can be a present to fans who like to take RAM to the acute. Within the CPU-Z screenshot shared by the leaker, we additionally get an additional affirmation for the overall specs of the Core i9-12900K, a 16-core, 24-thread half with a TDP score of 125 watts and no AVX-512 assist.
DDR5 8000!!!!!!!!
w/Z690 AORUS Tachyon & i9-12900K(?)@tomshardware @TechSpot @VideoCardz @wccftech @TechPowerUp pic.twitter.com/TrHD5Amg4L— REHWK (@hw_reveal) October 1, 2021
On this new leak, the Alder Lake half seems to be paired with Gigabyte’s DDR5-6200 reminiscence package on a Z690 Aorus Tachyon motherboard. By default, the DDR5-6200 reminiscence will function at DDR5-4800 speeds as per the JEDEC spec, with 42-39-39-77-116 timings at 1.1V. Below the XMP-6200 profile, timings are set a bit tighter to 38-38-38-76-125, however the working voltage is bumped to 1.5V for secure operation. In any other case, there’s one other XMP-6400 profile with extra relaxed timings and an working voltage of 1.45V.
To place issues in context, an attention-grabbing characteristic that debuted with Rocket Lake is Gear modes, that are Intel’s response to AMD’s Infinity Material modes for reminiscence overclocking. Gear 1 permits you to run the reminiscence controller and the reminiscence itself on the similar frequency, whereas Gear 2 and Gear 4 permits you to run them at totally different frequencies. Within the case of Gear 2, the reminiscence controller runs at half the frequency of the reminiscence, and the latter mode permits the reminiscence controller to run at one-quarter of the reminiscence frequency.
Alder Lake can be anticipated to have this characteristic, and this new leak suggests the reminiscence controller on the brand new CPU lineup permits for ups to a 67 p.c reminiscence overclock to DDR5-8000 from the DDR5-4800 spec, with timings set to 50-50-50-100-150 for CL, tRDC, tRP, tRAS, and tRC, respectively. Notably, the overclocker achieved this utilizing Gear 2 mode, which means the reminiscence controller is operating at round 2,000 MHz, whereas the reminiscence runs at 4,000 MHz (8,000 MHz efficient pace). As of writing, the DDR4 overclocking document sits at 7,156 MHz, so this leak means that DDR5 needs to be able to reaching larger than that proper from the get-go.
Total, it is a formidable feat that doubtless required some unique cooling to drag off. One should not learn an excessive amount of into it, as we have now but to see precisely how a lot of a pace profit DDR5 brings over DDR4 and whether or not or not it will be definitely worth the value premium you may need to pay for the privilege. At the least one producer plans to transcend the ten,000 MHz barrier with overclocked modules, so it will be attention-grabbing to see what DDR5 has in retailer.