Hardware Spec Index

Teralux DR-8643 Ultra DDR4-4000 64GB (2×32GB) CL19 SO-DIMM Kit

Memory · Teralux · SKU DR8643-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index8,482 (Memory scale)
Category rank#31,061
Street price$319
Power8 W
Performance per dollar26.59
Released2020

Specifications

BrandTeralux
ModelTeralux DR-8643 Ultra
Memory typeDDR4 SO-DIMM (260-pin)
SpeedDDR4-4000 (4,000 MT/s)
Kit capacity64 GB (2 × 32 GB)
Timings19-21-21-51
CAS latencyCL19
First-word latency9.50 ns
Voltage1.35 V
ProfileIntel XMP 2.0
ECCNon-ECC
Power managementMotherboard-regulated
Heat spreaderNone (low profile)

Related guides

DDR4 vs DDR5CAS Latency (CL) and RAM TimingsXMP vs EXPODDR5 Memory Explained

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All Memory · JSON

Cite this page: Hardware Spec Index, “Teralux DR-8643 Ultra DDR4-4000 64GB (2×32GB) CL19 SO-DIMM Kit”, https://vextor7.com/item/24257650 (accessed 2026-10-19).