New HUDIMM DDR5 Standard Promises Cheaper Memory, But Testing Shows It Slashes Bandwidth in Half - Wccftech
50% bandwidth loss. That's the trade-off motherboard makers are pushing with cheaper DDR5 HUDIMMs—and it could reshape AI infrastructure economics.

Why it matters
New cost-optimized DDR5 memory standard (HUDIMM) cuts throughput by half to reduce costs, creating a critical trade-off for AI workloads and data centers where memory bandwidth directly impacts model inference and training speed.
The key facts
5 to knowHUDIMMs show ~50% reduction in throughput vs standard DDR5
Two HUDIMMs needed to match single standard DDR5 stick performance
Single subchannel design reduces capacity per module to cut costs
ASRock, ASUS developing HUDIMM implementations
Demonstrated on ROG Maximus Z890 Apex motherboard
Go to the source
Reuters Technologynews.google.com
Publisher excerpt: New HUDIMM DDR5 Standard Promises Cheaper Memory, But Testing Shows It Slashes Bandwidth in Half Wccftech New cost-effective DDR5 memory 'HUDIMMs' show around 50% reduction in throughput with single subchannel — Two HUDIMMs are as fast as a single stick of regular DDR5 RAM Tom's Hardware ASRock…