Hardware Spec Index

Caldera DR-7640 Prime DDR4-2666 16GB (2×8GB) CL16 Kit

Memory · Caldera · SKU DR7640-PRIME · Released 2020 · Updated 2026-10-24

Key facts

Benchmark index3,134 (Memory scale)
Category rank#44,496
Street price$39
Power5 W
Performance per dollar80.36
Released2020

Specifications

BrandCaldera
ModelCaldera DR-7640 Prime
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-2666 (2,666 MT/s)
Kit capacity16 GB (2 × 8 GB)
Timings16-20-20-46
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

DDR4 vs DDR5CAS Latency (CL) and RAM TimingsDDR5 Memory ExplainedXMP vs EXPO

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Cite this page: Hardware Spec Index, “Caldera DR-7640 Prime DDR4-2666 16GB (2×8GB) CL16 Kit”, https://vextor7.com/item/13294352 (accessed 2026-10-24).