Hardware Spec Index

Lumora DR-9639 Ultra DDR5-6800 64GB (4×16GB) CL34 Kit

Memory · Lumora · SKU DR9639-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index6,990 (Memory scale)
Category rank#4,332
Street price$219
Power21 W
Performance per dollar31.92
Released2026

Specifications

BrandLumora
ModelLumora DR-9639 Ultra
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-6800 (6,800 MT/s)
Kit capacity64 GB (4 × 16 GB)
Timings34-34-34-102
CAS latencyCL34
First-word latency10.00 ns
Voltage1.35 V
ProfileXMP 3.0 + EXPO
ECCOn-die ECC (not system ECC)
Power managementOn-module PMIC
Heat spreaderAluminum, no lighting

Related guides

DDR5 Memory ExplainedDDR4 vs DDR5CAS Latency (CL) and RAM TimingsXMP vs EXPO

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Cite this page: Hardware Spec Index, “Lumora DR-9639 Ultra DDR5-6800 64GB (4×16GB) CL34 Kit”, https://vextor7.com/item/93022318 (accessed 2026-10-22).