DDR5 is designed to meet increasing needs for efficient performance in a wide range
of applications including cloud computing, and data center processing. The DDR5
specification provides developers with twice the performance (4.8 to 6.4 Gbps data
rate) and improved power efficiency in comparison to DDR4 by using an on-DIMM
12V voltage regulator (PMIC) and 1.1 I/O Voltage.
DDR5 also improves scaling performance without degrading channel efficiency at
higher speeds. This increased performance is achieved by doubling the burst length
to BL16 and bank-count to 32 from 16. For increased reliability and efficiency, a DDR5
DIMM boasts two 40-bit fully independent sub-channels on the same module. DDR5
memory modules have a maximum die density of 64Gb and hence are capable of
having a much higher DIMM storage capacity.
DDR5 Memory Modules
•
Command/Address and Control bus is double data rate
•
Generates CRC checksum in READ data frames
•
Default burst length increased to BL16 – Single burst = 64B of data
•
Integrated Temperature Sensor (MR4)
•
DDR5 DRAM contain 256 mode registers
•
High Performance Computing
•
Cloud Computing and Storage
•
Enterprise Networking
Features
Benets
Applications
•
Higher Bandwidth, DDR5 initial designs 4800 MHz
•
Lower Power
•
Better power efficiency and scalability
•
Higher memory efficiency, lower latency
•
Higher capacity DIMMs
For more information, please visit: www.smartm.com
Customer Service:
T: (+1) 510-623-1231 • E: customers@smartm.com
Headquarters/North America:
T: (+1) 800-956-7627 • T: (+1) 510-623-1231
F: (+1) 510-623-1434 • E: info@smartm.com
Latin America:
T: (+55) 11 4417-7200 • E: sales.br@smartm.com
EMEA:
T: (+44) 0 7826-064-745 • E: sales.euro@smartm.com
Asia/Pacific:
T: (+65) 6678-7670 • E: sales.asia@smartm.com
DDR5 Ordering Information
©2021, SMART Modular Technologies, All rights reserved. The stylized “S” in conjunction with “SMART”, as well as “SMART Modular Technologies” are registered trademarks of SMART Modular Technologies. All other trademarks are
the property of the respective owners. These materials are provided by SMART Modular Technologies as a service to its customers and may only be used for informational purposes. 12.12.20/DDR5/Rev.8
288-PIN - DDR5 RDIMM
SMART Part Number Density Height (mm) Module Cong. Device Type Speed Voltage Temperature
ST4098RD520805SB 32GB 31.25 4Gb x80 2Gx8 4800MT/s 1.1V 0°C to +70°C
288-PIN - DDR5 ECC UDIMM
SMART Part Number Density Height (mm) Module Cong. Device Type Speed Voltage Temperature
ST2047UD520805SB 16GB 31.25 2Gb x72 2Gx8 4800MT/s 1.1V 0°C to +70°C
DDR5 Value Memory Modules Ordering Information
288-PIN - DDR5 RDIMM
SMART Part Number Density Height (mm) Module Cong. Device Type Speed Voltage Temperature
ST8198RD540405-SB 64GB 31.25 8Gb x80 4Gx4 4800MT/s 1.1V 0°C to +70°C
ST4098RD520805-SB 32GB 31.25 4Gb x80 2Gx8 4800MT/s 1.1V 0°C to +70°C
ST4098RD540405-SB 32GB 31.25 4Gb x80 4Gx4 4800MT/s 1.1V 0°C to +70°C
ST2048RD520805-SB 16GB 31.25 2Gb x80 2Gx8 4800MT/s 1.1V 0°C to +70°C
260-PIN - DDR5 SODIMM
SMART Part Number Density Height (mm) Module Cong. Device Type Speed Voltage Temperature
ST4G6SO5285-SB 32GB 30 4Gb x64 2Gx8 4800MT/s 1.1V 0°C to +70°C
ST2G6SO5285-SB 16GB 30 2Gb x64 2Gx8 4800MT/s 1.1V 0°C to +70°C
ST1G6SO5165-SB 8GB 30 1Gb x64 512Mx16 4800MT/s 1.1V 0°C to +70°C
288-PIN - DDR5 UDIMM
SMART Part Number Density Height (mm) Module Cong. Device Type Speed Voltage Temperature
ST4G6UD5285-SB 32GB 31.25 4Gb x64 2Gx8 4800MT/s 1.1V 0°C to +70°C
ST2G6UD5285-SB 16GB 31.25 2Gb x64 2Gx8 4800MT/s 1.1V 0°C to +70°C
ST1G6UD5165-SB 8GB 31.25 1Gb x64 512Mx16 4800MT/s 1.1V 0°C to +70°C