Hardware Spec Index

Mirenta DR-6639 Ti DDR5-8400 64GB (4×16GB) CL40 Kit

Memory · Mirenta · SKU DR6639-TI · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index7,623 (Memory scale)
Category rank#11,317
Street price$269
Power22 W
Performance per dollar28.34
Released2023

Specifications

BrandMirenta
ModelMirenta DR-6639 Ti
Memory typeDDR5 UDIMM (288-pin)
SpeedDDR5-8400 (8,400 MT/s)
Kit capacity64 GB (4 × 16 GB)
Timings40-42-42-120
CAS latencyCL40
First-word latency9.52 ns
Voltage1.40 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, “Mirenta DR-6639 Ti DDR5-8400 64GB (4×16GB) CL40 Kit”, https://vextor7.com/item/8014164 (accessed 2026-10-22).