With the launch of DDR5 memory format for consumer platforms, there are still many doubts about when it will become a standard. Their big problem is that to get to speeds that beat DDR4, the DDR5 kits that do are usually the most expensive, but overclocker Rauf shows how entry-level DDR5 kits can deliver similar performance through overclocking. of optimized sub-timings.
Extreme overclocker Tobias Bergström aka Rauf from Sweden has shared some interesting figures for those currently scratching their heads on whether to buy a standard DDR5-4800 kit or heavily overclocked ones. High-end memory kits are expensive and hard to come by due to the PMIC shortage. This also affects low-end kits that work to JEDEC specifications; however, these DDR5 kits that can be overclocked they can be found on almost every OEM PC and are somewhat available in the retail segment.
Overclocking allows a DDR5 to be compared with the most advanced
Rauf has explained in a detailed post on Nordichardware that the DDR5 memory it comes in three types of DRAM. DRAM ICs come from Micron, Samsung, and Hynix. For now, Micron is the baseline standard with its DDR5 DRAM and doesn't offer much overclocking capabilities, so most of its kits are stuck at DDR4-4800 (CL38). Samsung's DDR5 DRAM ICs are the middle ground and are found in most memory kits, ranging from DDR5-5200-6000 transfer speeds. - For its part, Hynix offers the best DRAM ICs with speeds higher than DDR5-6000.
DDR5 offers higher transfer speeds, but performance is not as great in many applications due to lack of sync. Thus, most DDR4 and DDR5 memory kits offer the same performance, but optimized platforms like Intel's Alder Lake can benefit from them due to the availability of four channels for DDR5 versus two channels for DDR4.
About the cheap ddr5 kits vs. the high-end, Rauf has shown that simply by adjusting the sub-timings of the Micron kits you can get performance on a par with the high-end Samsung and Hynix kits. Rauf compared Micron's DDR5 in three different configurations. One with the original features, one with higher frequencies and one with adjusted sub-timings. The tuning of the sub-times produced a further performance increase and up to 4% integer and 2% floating-point throughput was gained with the optimized sub-times while keeping the transfer rate at 4800 Mbps. H
Source: Wccftech
