DDR4 memory organization and how it affects memory bandwidth
![DDR4 memory organization and how it affects memory bandwidth](http://blog.cloudflare.com/content/images/2023/04/DDR4-memory-organization-and-how-it-affects-memory-bandwidth.png)
In this blog, we will study the concepts of memory rank and organization, and how memory rank and organization affect the memory bandwidth performance by reviewing some benchmarking test results.
![](https://images.ctfassets.net/aoyx73g9h2pg/g97jvGHqHB4gPTmvTgIPt/8c924064d77abdffe1d4fce5fbb7f7ca/DDR4-vs-DDR5-Diagram.jpg)
DDR4 vs. DDR5: Unveiling the Next Generation of Memory
![](https://www.rambus.com/wp-content/uploads/2021/10/DDR5-RDIMMs-Rambus-Memory-Interface-Chips-2.jpg)
DDR4 vs DDR5 RAM: All the Design Challenges & Advantages -Rambus
![](https://blog.paperspace.com/content/images/2022/06/benchy.png)
Computing GPU memory bandwidth with Deep Learning Benchmarks
Actual memory bandwidth of raspberry pi4? - Raspberry Pi Forums
![](https://www.digitaltrends.com/wp-content/uploads/2021/02/best-ddr2-ram.jpg?fit=1024%2C682&p=1)
DDR6 is Four Times as Fast as DDR4 and Already in the Works
![](https://media.springernature.com/m685/springer-static/image/art%3A10.1007%2Fs00778-019-00546-z/MediaObjects/778_2019_546_Fig1_HTML.png)
Joins on high-bandwidth memory: a new level in the memory hierarchy
![](https://i.redd.it/k24y8oww6qda1.png)
X670e max memory speed at 64GB : r/ASRock
![](https://www.rambus.com/wp-content/uploads/2022/09/DDR5-DDR4-comparison-table-1.png)
DDR4 vs DDR5 RAM: All the Design Challenges & Advantages -Rambus
![](https://infohub.delltechnologies.com/static/media/ca709a28-193c-4f10-a63c-f047e557cf81.png)
DDR5 Memory Bandwidth for Next-Generation PowerEdge Servers Featuring 4th Gen AMD EPYC Processors
![](https://www.passmark.com/source/img_posts/pt_advmem_scr.jpg)
Memory benchmark - test your PC memory speed
![](https://www.passmark.com/source/img_posts/pt_advmem_gph.jpg)
Memory benchmark - test your PC memory speed
![](https://images.anandtech.com/doci/9883/micron_gddr5x.png)
GDDR5X Standard Finalized by JEDEC: New Graphics Memory up to 14 Gbps
![](https://www.techdesignforums.com/practice/files/2018/01/Figure-2-_AMD-Approved.jpg)
Choosing between DDR4 and HBM in memory-intensive applications - Tech Design Forum Techniques
![](https://images.anandtech.com/doci/12621/amd_ryzen_processor_with_radeon_graphics_press_deck-legal_final-page-052.jpg)
Zen and Vega DDR4 Memory Scaling on AMD's APUs