Hardware Spec Index

Caldera SN-6645 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN6645-PRO · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index4,953 (SSDs scale)
Category rank#21,419
Street price$69
Power6 W (active)
Performance per dollar71.78
Released2020

Specifications

BrandCaldera
ModelCaldera SN-6645 Pro
Capacity1 TB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read6,700 MB/s
Sequential write5,900 MB/s
Random 4K read1,260K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance600 TBW (0.55 DWPD)
Warranty3 years
HeatsinkHeatsink edition available

Related guides

NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0

Similar SSDs

ModelBenchmarkPriceCompare
Caldera SN-4685 Ultra 2TB PCIe 3.0 NVMe M.2 2280 SSD10,410$319Compare
Mirenta SN-6013 Edge 2TB PCIe 4.0 NVMe M.2 2280 SSD10,674$349Compare
Caldera SN-3849 Prime 1TB SATA 2.5-inch SSD3,699$39Compare
Altrix SN-1880 Core 2TB PCIe 4.0 NVMe M.2 2280 SSD11,054$349Compare
Novexa SN-5049 Ultra 500GB PCIe 4.0 NVMe M.2 2280 SSD5,853$69Compare
Mirenta SN-1572 Pro 2TB PCIe 4.0 NVMe M.2 2280 SSD10,611$259Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-6645 Pro 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/5117988 (accessed 2026-10-19).