Hardware Spec Index

Lumora DR-6643 Ultra DDR4-4000 64GB (2×32GB) CL18 Kit

Memory · Lumora · SKU DR6643-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index8,496 (Memory scale)
Category rank#36,712
Street price$329
Power8 W
Performance per dollar25.82
Released2020

Specifications

BrandLumora
ModelLumora DR-6643 Ultra
Memory typeDDR4 UDIMM (288-pin)
SpeedDDR4-4000 (4,000 MT/s)
Kit capacity64 GB (2 × 32 GB)
Timings18-20-20-49
CAS latencyCL18
First-word latency9.00 ns
Voltage1.35 V
ProfileIntel XMP 2.0
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderAluminum, RGB lighting

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All Memory · JSON

Cite this page: Hardware Spec Index, “Lumora DR-6643 Ultra DDR4-4000 64GB (2×32GB) CL18 Kit”, https://vextor7.com/item/54773742 (accessed 2026-10-25).