Announcing Our New CXL Report

Sketch of a CXL 3.0 fabric. There are four switches in the middle of the diagram on the top left and right and the bottom left and right. Each switch is connected to all of the others via CXL ISL Links, which are represented by a simple straight line between each one. Each switch is also connected to two hosts through two CXL Links, so there are eight hosts in the sketch. The two right-side switches are also connected to two CXL memory modules, which connect to the CXL link to the switch through a yellow box called "CXL MC" representing the CXL Memory Controller and to a red box marked "Mem" representing the memory chips.The Memory Guy is pleased to announce general availability of a new Objective Analysis Detailed Report: CXL Looks for the Perfect Home.

Since Compute Express Link (CXL) is so important to members of the DRAM market and the hyperscale computing community, the report focuses on those sectors, but it offers Continue reading “Announcing Our New CXL Report”

FMS – New Focus and a Heavy AI and CXL presence

Last week’s FMS conference, originally the Flash Memory Summit, but now the Future of Memory and Storage, saw a strong return of the show’s original excitement and attendance, with numerous presentations on key new technologies, largely AI and CXL, and crowds similar to those before the pandemic.  FMS is held in early August every year in Santa Clara, California.

The new name is meant to match the show’s content better than Continue reading “FMS – New Focus and a Heavy AI and CXL presence”

Processing-In-Memory, 1960s-Style

Famous photo of Apollo 11's Buzz Aldrin on the moon.There’s a surge of interest these days in Processing in Memory or PIM.  Some call it “Compute in Memory.”  Either way, it often involves adding small amounts of logic to a memory chip to allow it to offload tasks from the CPU.

There are various reasons to do this.  The most important is that PIM frees the CPU to do other chores.  PIM also can reduce Continue reading “Processing-In-Memory, 1960s-Style”

ReRAMs find a Neuromorphic Role in Owl-Inspired Object Location

Photo of Ron Neale, Renowned Phase-Change Memory ExpertIn his latest post on The Memory Guy, contributor Ron Neale reviews a novel use for ReRAM cells in which a neural processing system mimics the direction-finding mechanism of a barn owl’s ears.  This is based on research performed by CEA-Leti in France, which was recently published in the journal Nature.


The potential for the use of the unique characteristics of ReRAMs, PCM and CeRAMs as brain-gates, neuromorphic devices, and in-memory computation has long been recognised.

In a paper recently published in Nature , inspired by the auditory system of the barn owl, a team from: CEA-Leti, Continue reading “ReRAMs find a Neuromorphic Role in Owl-Inspired Object Location”

The Rarely Seen, But Beautiful Content-Addressable Memory (CAM)

Photo of a D3103 chip from a 1973 Intel advertisementAlthough The Memory Guy spends more time writing about NAND and DRAM than almost anything else, several other memory types ship in high volume that many people have never heard of.  One of these is the Content-Addressable Memory, or CAM.

CAMs are kind of backwards.  In a normal memory chip you input Continue reading “The Rarely Seen, But Beautiful Content-Addressable Memory (CAM)”

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