More details on AMD's upcoming series of Ryzen 3000 desktop processors are starting to appear before Computex releases the full report next Wednesday. If the most recent information posted on Twitter by any of AMD's partners is accurate, the next Zen 2 pieces will support memory speeds of up to DDR4-5000MHz.
This latest revelation follows a previous leak that seems to confirm that AMD plans to launch 16-core and 12-core variants of its Zen 2 chips, in addition to the usual 8, 6 and 4-core suspects. Combining 5,000 MHz memory modules with one of the most sophisticated parts is certainly an interesting proposition, especially if AMD offers a significant improvement in IPC performance (clock instructions): about 15% is what the rumor says.
According to Yuri Bubliy (@ 1usmus on Twitter), developer of the Ryzen DRAM memory calculator, the processors of the Ryzen 3000 series will be able to handle a high-speed memory at 5000 MHz, for those who can afford it faster RAM come with additional fees).
"I think it's time to start.
The maximum value of the Zen 2 RAM generation frequency is the 5000 MHz UCLK == MEMCLK / 2 "mode, Bubliy wrote on Twitter.
What he says, is that the UClk on the Ryzen 3000 series processors is equal to half the speed of the memory module. Thus, for a RAM kit capable of navigating at 5,000 MHz, the UClk would be at 2,500 MHz (1,250 effective MHz).
UClk refers to the frequency of the Unified Memory Controller (UMC). To put this claimed speed into perspective, a first-generation Ryzen 7 1700 operating at a normal speed has a 3000 MHz core clock with 2,400 Mt / s DRAM and a 1,200 MHz UClk (600 MHz).
This new AMD chiplet design is one of the things that makes this extra speed possible. The memory controller is effectively separated from the cores of the CPU into a separate I / O chip. Note that the clock of the DRAM is also related to the Infinity fabric of AMD – 5000 MHz there is an unrealistic expectation, hence the half divisor mode to which Bubliy refers, for the UClk frequency .
This is an interesting development, although not all configurations will be able to reach the maximum supported frequency. This will require heavy RAM and a capable motherboard. And because it always falls in the field of overclocking, experience and luck will play at once.
Nevertheless, this could help AMD and its motherboard partners to encourage users to upgrade to an X570 motherboard, even though previous AM4 socket-based chip sets also support Ryzen 3000 series processors.
