Hardware Spec Index

Caldera DR-3971 Ultra DDR5-6400 48GB (2×24GB) CL32 Kit

Memory · Caldera · SKU DR3971-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index4,529 (Memory scale)
Category rank#32,794
Street price$109
Power8 W
Performance per dollar41.55
Released2023

Specifications

BrandCaldera
ModelCaldera DR-3971 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-6400 (6,400 MT/s)
Kit capacity48 GB (2 × 24 GB)
Timings32-36-36-99
CAS latencyCL32
First-word latency10.00 ns
Voltage1.35 V
ProfileIntel XMP 3.0
ECCOn-die ECC (not system ECC)
Power managementOn-module PMIC
Heat spreaderAluminum, no lighting

Related guides

DDR5 Memory ExplainedDDR4 vs DDR5CAS Latency (CL) and RAM TimingsXMP vs EXPO

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Cite this page: Hardware Spec Index, “Caldera DR-3971 Ultra DDR5-6400 48GB (2×24GB) CL32 Kit”, https://vextor7.com/item/30035359 (accessed 2026-10-19).