Intel HUDIMM DDR5 Performance First Look, Bandwidth Halved Near 50%

Intel introduced a new DDR5 memory standard called HUDIMM on April 19. Intel introduced The company developed this Half-UDIMM specification to provide a lower-cost solution for budget-conscious users. The design simplifies the dual 32-bit channels found in standard memory modules into a single 32-bit channel. Intel aims to reduce manufacturing costs by activating only half of the memory banks on the module.

The initial product lineup is expected to offer 8GB and 12GB capacity options. Testing indicates the memory operates at a speed of 7200 MT/s. The specification supports mixing with standard UDIMMs in user builds. This flexibility allows users to integrate the new modules with existing hardware configurations.

The source material does not provide specific pricing or availability details for the new memory standard. Intel and partner companies have not released official cost figures or launch dates. The information regarding capacity options remains unconfirmed as the source describes them as expected rather than finalized.

Single channel design halves bandwidth while stabilizing latency

Performance data from Wccftech shows that bandwidth performance suffers significantly in this configuration. new DDR5 memory A 16GB HUDIMM achieves less than 60GB/s of bandwidth. This figure falls far below the 100GB/s bandwidth typical of standard UDIMMs. Converting a 16GB standard UDIMM to an 8GB HUDIMM in single-channel mode results in a performance decline of nearly 50%. Latency remains stable between 85 and 87 nanoseconds during testing. The standard does not exhibit significant latency degradation despite the bandwidth loss.

Intel HUDIMM Specifications

• Channel Architecture: Single 32-bit channel (simplified from dual 32-bit channels)
• Initial Capacities: 8GB and 12GB options
• Tested Speed: 7200 MT/s
• Compatibility: Supports mixing with standard UDIMMs
• Latency: Stable between 85 and 87 nanoseconds

Intel, ASUS, and ASRock are among the entities associated with this announcement. Wccftech provided the performance testing data. HKEPC assisted with the simulation of the standard UDIMM environment. Specific cost reduction figures are not provided in the available information. The exact launch timeline for the initial 8GB and 12GB modules remains unclear.