Hardware Spec Index

Caldera DR-9640 Ultra DDR5-6800 64GB (4×16GB) CL34 Kit

Memory · Caldera · SKU DR9640-ULTRA · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index6,118 (Memory scale)
Category rank#19,280
Street price$179
Power20 W
Performance per dollar34.18
Released2022

Specifications

BrandCaldera
ModelCaldera DR-9640 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-6800 (6,800 MT/s)
Kit capacity64 GB (4 × 16 GB)
Timings34-36-36-88
CAS latencyCL34
First-word latency10.00 ns
Voltage1.35 V
ProfileAMD EXPO
ECCOn-die ECC (not system ECC)
Power managementOn-module PMIC
Heat spreaderAluminum, RGB 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-9640 Ultra DDR5-6800 64GB (4×16GB) CL34 Kit”, https://vextor7.com/item/2831975 (accessed 2026-10-20).