HUDIMM and HSODIMM: The Industry's Response to High RAM Prices Comes from Simplified Modules
The recent increase in memory prices, also driven by the growing demand related to artificial intelligence, is pushing manufacturers to explore alternative solutions to contain the costs of consumer platforms. In this context, a new proposal developed by ASRock in collaboration with Intel and TeamGroup emerges: the HUDIMM modules, a simplified variant of DDR5 memory.
Traditional DDR5 memory in UDIMM format adopts a structure of two sub-channels of 32 bits each, for a total of 64 bits per module. The new HUDIMM (Half Unbuffered DIMM) instead introduces a single sub-channel of 32 bits, effectively reducing both bandwidth and module density.
🚀 ASRock Drives DDR5 Innovation with Self-Developed HUDIMM Technology ASRock introduces its self-developed One Sub-Channel (1×32-bit) DDR5 HUDIMM design, now supported on Intel 600 / 700 / 800 series motherboards. Unlike standard DDR5 (2×32-bit), ASRock’s HUDIMM architecture…
This design choice allows for the use of a smaller number of DRAM chips, with potential benefits on production costs. However, the reduction in hardware resources directly impacts performance, making these modules more suitable for entry-level systems or configurations where capacity and bandwidth are not priorities.
According to reports, the HUDIMM modules are compatible with Intel platforms based on the 600, 700, and 800 series chipsets through dedicated BIOS updates. At the same time, ASRock is also developing HSODIMM for the mobile segment, applying the same principle to SO-DIMM modules.
A distinctive element is the support for hybrid configurations: at the BIOS level, it is possible to combine HUDIMM and traditional UDIMM modules. For example, a system with an 8 GB HUDIMM (32 bits) module and a 16 GB UDIMM (2x32 bits) can operate with three active sub-channels, offering a higher overall bandwidth compared to a single traditional 24 GB module.
However, the issue of latency remains: preliminary data indicates values around 90 ns, significantly higher than current DDR5 standards. ASUS has also shown interest in this approach, showcasing a demonstration on the ROG Maximus Z890 Apex motherboard. In this case, an engineer manually disabled half of the contacts on standard DDR5 modules, achieving a configuration equivalent to a HUDIMM and verifying its operation at half capacity.
No official support or industrial partnership has been confirmed, but the involvement of multiple actors could indicate a possible consolidation of the standard. At present, no official details on pricing and availability have been communicated. The introduction of HUDIMM, however, represents a concrete attempt to differentiate the DDR5 offering, proposing a compromise between cost and performance in a complex market: although memory prices have stopped rising rapidly, they remain at truly high levels.