Hardware Spec Index

Caldera SN-8642 XT 500GB PCIe 4.0 NVMe M.2 2280 SSD

SSDs · Caldera · SKU SN8642-XT · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index6,235 (SSDs scale)
Category rank#31,492
Street price$89
Power7 W (active)
Performance per dollar70.06
Released2022

Specifications

BrandCaldera
ModelCaldera SN-8642 XT
Capacity500 GB
Form factorM.2 2280
InterfacePCIe 4.0 x4, NVMe 2.0
Sequential read7,100 MB/s
Sequential write3,900 MB/s
Random 4K read810K IOPS
NAND3D TLC, 218-layer
CacheDRAM-less (HMB)
Endurance300 TBW (0.33 DWPD)
Warranty5 years
HeatsinkNone

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
Novexa SN-6866 Prime 500GB PCIe 4.0 NVMe M.2 2280 SSD6,357$109Compare
Altrix SN-7243 XT 1TB SATA 2.5-inch SSD4,249$39Compare
Novexa SN-2159 Ultra 1TB SATA 2.5-inch SSD4,497$49Compare
Altrix SN-7832 Prime 8TB PCIe 5.0 NVMe M.2 2280 SSD12,800$459Compare
Strivon SN-3558 Plus 1TB PCIe 4.0 NVMe M.2 2230 SSD5,955$89Compare
Caldera SN-9547 SE 2TB PCIe 4.0 NVMe M.2 2280 SSD7,603$149Compare

All SSDs · JSON

Cite this page: Hardware Spec Index, “Caldera SN-8642 XT 500GB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/6846700 (accessed 2026-10-25).