Timed directly to the Arrow Lake Refresh launch, GIGABYTE has announced new Z890 Plus motherboards that introduce CQDIMM support, specifically 4-rank CUDIMM memory, an emerging DDR5 format that dramatically increases per-DIMM capacity while maintaining high-speed compatibility.
The announcement follows Intel’s announcement that we covered on the Arrow Lake Refresh chips that 4-rank CUDIMM support on new 800-series motherboard models is being added throughout 2026. GIGABYTE is among the first to bring product to market with this capability, and the Z890 Plus lineup is being positioned as the builder-friendly platform for anyone wanting to maximize memory capacity without moving to workstation hardware.
Standard CUDIMM modules at the consumer level are single-rank, which limits per-DIMM capacity compared to what enterprise platforms offer. 4R CUDIMM, by contrast, allows up to 128GB of DDR5 capacity per DIMM slot, which on a dual-slot Z890 board means theoretical 256GB configurations at consumer DDR5 speeds. MSI and ADATA were the first to demonstrate stability with 4R CUDIMM last November, and GIGABYTE’s Z890 Plus boards bring that support into a wider range of board partner options.
Why does this matter in the current market? Memory capacity is increasingly relevant for creative workloads, AI inference at the consumer level, and high-VRAM gaming scenarios where system RAM supplements or supplements GPU VRAM under API-managed configurations like DirectStorage and resizable BAR. A Z890 board that supports 4R CUDIMM future-proofs the platform as DDR5 capacities grow and prices (eventually) normalize (Ed: HA!)
The timing of this launch is also notable from a platform longevity perspective. Intel has confirmed that LGA1851, which hosts both the original Arrow Lake parts and the Core Ultra 200S Plus refresh, is the final socket of this generation. Nova Lake, Intel’s next major desktop architecture, will require LGA1954. Builders committing to Z890 today are building on a platform that has reached its final CPU iteration, but the addition of 4R CUDIMM support extends the platform’s relevance for memory-heavy workloads even as the CPU roadmap moves forward.
GIGABYTE has not yet confirmed full pricing or exact model names for the Z890 Plus lineup beyond the announcement. For more detailed specifications and pricing, check GIGABYTE’s product pages directly as they are populated ahead of the March 26 retail launch. We should have a raft of these boards headed our way, so get ready for some reviews to drop as we work our way through them.