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Twitter user REHWK Shared an unpublished screenshot from Intel Core i9-12900K And some very fast DDR5 memory. 16-core hybrid chips will lead the 12th generation of chip manufacturers Alder Lake army Best CPU.
There is not much to see from the processor side. The CPU-Z screenshot seems to confirm that the Core i9-12900K is a 125W chip with 30MB of L3 cache. We have known these specifications for some time, but it is always good to get some confirmation.It is also obvious from the instruction set list Alder Lake lacks AVX-512 supportAlthough the Golden Cove kernel supports AVX-512, the Gracemont kernel does not. Therefore, Intel only disabled the AVX-512 instruction set in the Golden Cove kernel on Alder Lake to maintain unified ISA support.
Alder Lake for DDR4 and DDR5 Memory format. The data rates supported by default are DDR4-3200 and DDR5-4800 respectively.Therefore, memory that complies with these specifications, including some Best memory, It is actually plug and play on Intel 600 series motherboards.
The Core i9-12900K in question was tested on Gigabyte’s upcoming Z690 Aorus Tachyon motherboard, which has matching Gigabyte DDR5-4800 (GP-ARS32G62D5) memory. The screenshots from overclockers who are testing the boundaries of DDR5 memory kits seem reasonable. Therefore, a peculiar cooling may be used to push the memory to DDR5-8000.
DDR5 memory natively runs with DDR5-4800, the timing is set to 42-39-39-77, and the voltage is only 1.1V. DDR5-6200 has two XMP 3.0 configuration files. The loose timing configuration of the memory is 40-40-40-80 at 1.35V, and the optimized timing reduces the timing to 38-38-38-76, but increases the DRAM voltage to 1.5V. Obviously, the memory module also comes with a third XMP 3.0 configuration file for DDR5-6400, the timing is 42-42-42-84, and the voltage is 1.45V.
with Rocket Lake, Intel introduced gear mode, similar to AMD’s Infinity Fabric Clock (FCLK) for memory overclocking. In short, the gear mode makes it possible for the memory controller and the memory frequency to run at different speeds. For example, Gear 1 maintains a 1:1 ratio, while Gear 2 reduces the frequency of the memory controller to half, reaching a ratio of 0.5:1.A sort of The latest patch for HWiNFO64 Hints that Intel will implement the same gear model in Alder Lake, and Baseline leak Reveals a potential Gear 4 option that can reduce the memory controller to a quarter of the memory frequency.
Overclockers upgraded the memory from DDR5-4800 to DDR5-8000, which improved performance by 67%. Obviously, overclockers set the timing to 50-50-50-100. In the screenshot, the clock frequency of the memory controller is 2,000 MHz, and the clock frequency of the memory is 4,000 MHz. It is remarkable that overclockers managed to reach DDR5-8000 in Gear 2 mode.
It is rumored that Alder Lake will be launched on November 4, so Intel’s 600 series motherboards and DDR5 memory should not lag far behind. Although DDR5 has brought many improvements, it remains to be seen how fast it is compared to the best DDR4 RAM.
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