Hardware Spec Index

Caldera DR-4639 Ultra DDR4-2666 16GB (2×8GB) CL16 Kit

Memory · Caldera · SKU DR4639-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index2,735 (Memory scale)
Category rank#19,516
Street price$39
Power4 W
Performance per dollar70.13
Released2023

Specifications

BrandCaldera
ModelCaldera DR-4639 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-2666 (2,666 MT/s)
Kit capacity16 GB (2 × 8 GB)
Timings16-16-16-42
CAS latencyCL16
First-word latency12.00 ns
Voltage1.20 V
ProfileJEDEC (no profile needed)
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderAluminum, no lighting

Related guides

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Cite this page: Hardware Spec Index, “Caldera DR-4639 Ultra DDR4-2666 16GB (2×8GB) CL16 Kit”, https://vextor7.com/item/45309191 (accessed 2026-10-20).