DDR5 memory is not just a simple speed upgrade. It is absolutely essential for AMD EPYC and Intel Xeon servers as we go forward. In this video, we explain why we need DDR5, explain the differences between DDR4 and DDR5, show off components like the new RCD, PMIC, and SPD hub, and finally, talk about performance and CXL. As a bonus, we also demonstrate why you can no longer use UDIMMs in DDR5 RDIMM slots, even if they are ECC UDIMMs.

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Timestamps

00:00 Introduction
01:52 DDR4 vs DDR5 Differences and UDIMM vs RDIMM Differences
04:08 DDR5 now has TWO Channels
05:39 New chips and components on DDR5 RDIMMs
06:40 Onchip ECC on DDR5 versus ECC UDIMM and RDIMMs
08:57 Why Servers NEED DDR5 with AMD EPYC and Intel Xeon
11:52 Performance Impact of DDR5
14:37 CXL and the DDR5 Future
16:00 DDR5 Server Memory Summary
16:51 Wrapup


Other STH Content Mentioned in this Video

4th Gen Intel Xeon Scalable Sapphire Rapids Launch:    • $17K Sapphire Rapids Server CPU! Hand...  
AMD EPYC 9004 "Genoa" Launch:    • AMD EPYC 9004 Genoa Gaps Intel Xeon w...  
Nonbinary DDR5 and more:    • This New Server Tech is WOW!!!  
Compute Express Link or CXL:    • CXL in Nextgen Servers Will Make Tod...