Subj : AMD, Meta are working on revolutionary tech that could recycle pe
To   : All
From : TechnologyDaily
Date : Thu Nov 09 2023 20:30:06

AMD, Meta are working on revolutionary tech that could recycle petabytes 
worth of RAM

Date:
Thu, 09 Nov 2023 20:17:44 +0000

Description:
CXL could help save hyperscalers tens of millions of dollars while improving 
performance.

FULL STORY
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Meta has partnered with AMD to showcase a type of memory that can be added 
onto servers using compute express link (CXL) technology. 

Using this open standard for a high-speed processor-to-device and 
processor-to-memory interface, CXL memory can lead to far more efficient use 
of memory, saving hyperscalers money while boosting performance. 

The demo board, which included an AMD EPYC 9004 Genoa processor, had four 
dual in-line memory module (DIMM) slots surrounding it, alongside a heat sink 
and fan. It also had a PCIe x16 connector, according to Serve the Home . 
Ushering the age of CXL 2.0 memory 

The CXL 2.0 memory expansion demo at the Open Compute Project (OCP) Global 
Summit 2023 was unusual in that it was built around an AMD chip, as opposed 
to Intels Xeon chip built on the Sapphire Rapids architecture. 

One of the key promises of CXL memory is the possibility itll give 
hyperscalers to reuse DRAM, with memory controllers that can interface 
between DDR4 or DDR5 RAM and CXL potentially leading to major cost savings. 

Essentially, as DDR4 memory begins to be phased out for DDR5 RAM , this may 
incur a significant cost investment for hyperscalers in managing their data 
centers. In fact, its perhaps one of the most significant costs here. 

Using CXL memory could be a way for these companies to continue using any 
DDR4 RAM units they want to phase out, as add-on memory to augment newer 
units and beef up their server configurations. 

There are several configurations of CXL memory in development, with Serve the 
Home also reporting on the aforementioned Intel chip being showcased 
alongside the Astera Labs CXL memory expansion card at SC22. 

FADU, last month, also showcased a device that could augment a server with 
additional memory over CXL 2.0. Its Apollo CXL 20 switch was built to reduce 
latency and power consumption while being used. 

Last year, Samsung also released a new version of its CXL DRAM , built with 
an ASIC CXL controller and packaging 512GB DDR5 DRAM to give servers a 
capacity boost. More from TechRadar Pro Could RAM replace SSD? Well, not 
really but this plucky Japanese startup may come very close We've rounded up 
the best DDR5 RAM out there today DDR5 vs DDR4 RAM : What's the difference?



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Link to news story:
https://www.techradar.com/pro/amd-meta-are-working-on-revolutionary-tech-that-
could-recycle-petabytes-worth-of-ram-cxl-could-help-save-hyperscalers-tens-of-
millions-of-dollars-while-improving-performance


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