Hardware Spec Index

Caldera DR-4947 Ultra DDR5-6400 64GB (2×32GB) CL34 Kit

Memory · Caldera · SKU DR4947-ULTRA · Released 2025 · Updated 2026-10-26

Key facts

Benchmark index5,144 (Memory scale)
Category rank#3,041
Street price$139
Power9 W
Performance per dollar37.01
Released2025

Specifications

BrandCaldera
ModelCaldera DR-4947 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-6400 (6,400 MT/s)
Kit capacity64 GB (2 × 32 GB)
Timings34-38-38-92
CAS latencyCL34
First-word latency10.63 ns
Voltage1.35 V
ProfileAMD EXPO
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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All Memory · JSON

Cite this page: Hardware Spec Index, “Caldera DR-4947 Ultra DDR5-6400 64GB (2×32GB) CL34 Kit”, https://vextor7.com/item/2737593 (accessed 2026-10-26).