Hardware Spec Index

Caldera DR-7639 Ultra DDR4-4000 64GB (2×32GB) CL19 Kit

Memory · Caldera · SKU DR7639-ULTRA · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index8,186 (Memory scale)
Category rank#21,743
Street price$279
Power7 W
Performance per dollar29.34
Released2020

Specifications

BrandCaldera
ModelCaldera DR-7639 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-4000 (4,000 MT/s)
Kit capacity64 GB (2 × 32 GB)
Timings19-25-25-59
CAS latencyCL19
First-word latency9.50 ns
Voltage1.35 V
ProfileIntel XMP 2.0
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderAluminum, no lighting

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Cite this page: Hardware Spec Index, “Caldera DR-7639 Ultra DDR4-4000 64GB (2×32GB) CL19 Kit”, https://vextor7.com/item/683572 (accessed 2026-10-21).