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DDR5 and AM4

Could it be possible that with B550 coming out soon, DDR5 could use the same slot as DDR4? Since Zen 3 will be an AM4 chip and will support DDR5, does the current slot support the bandwidth needed? I am not suggesting they will do this, just curious after AMD announced beta bios for older boards and such.

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I don't think DDR5 uses the same slot as DDR4. Also Zen 3 is an AM4 chip but will not support DDR5. That comes with Zen 4 and also uses an new socket. 

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Well DDR through the years has used more and more pins each revision. Its 99% likely to be fitted to a new slot design just for that reason alone amung others.....

 

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4 minutes ago, ShrimpBrime said:

Well DDR through the years has used more and more pins each revision. Its 99% likely to be fitted to a new slot design just for that reason alone amung others.....

 

Actually DDR5 is going to keep the 288 pins BUT the layout will be different so you cannot insert DDR5 into DDR4 slots and vice versa.

 

https://www.anandtech.com/show/13605/sk-hynix-develops-first-16-gb-ddr5-chip-demos-ddr5-rdimm

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Some of the tech people already got some hands-on with DDR5 DRAM.

It will be different, INTENTIONALLY, so you cannot use DDR5 RAM in a DDR4 slot.

The layout design is different.

https://www.anandtech.com/show/15375/ces-2020-sk-hynix-shows-off-64-gb-ddr54800-rdimm

https://www.micron.com/products/dram/ddr5-sdram

https://www.networkworld.com/article/3537328/ddr5-memory-promises-a-significant-speed-boost.html

 

Ryzen 4000-series (Zen3) will continue to use DDR4 RAM, for 2020 ~ 2021.

Ryzen 5000-series (Zen3+) is rumored to use DDR5, along with support for USB 4.0, on the AM5 platform, for 2022.

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You can also view the technical white sheet data on ddr5 as well.

 

This is Micron

 

ddr5_new_features_white_paper.pdf

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