Hardware Spec Index

Caldera DR-6639 Ultra DDR4-4000 32GB (4×8GB) CL18 Kit

Memory · Caldera · SKU DR6639-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index7,824 (Memory scale)
Category rank#21,018
Street price$269
Power15 W
Performance per dollar29.09
Released2021

Specifications

BrandCaldera
ModelCaldera DR-6639 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-4000 (4,000 MT/s)
Kit capacity32 GB (4 × 8 GB)
Timings18-22-22-47
CAS latencyCL18
First-word latency9.00 ns
Voltage1.35 V
ProfileIntel XMP 2.0
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderAluminum, RGB lighting

Related guides

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Cite this page: Hardware Spec Index, “Caldera DR-6639 Ultra DDR4-4000 32GB (4×8GB) CL18 Kit”, https://vextor7.com/item/7175993 (accessed 2026-10-19).