Caldera SN-6645 SE 1TB PCIe 4.0 NVMe M.2 2280 SSD
SSDs · Caldera · SKU SN6645-SE · Released 2023 · Updated 2026-10-20
Key facts
| Benchmark index | 7,774 (SSDs scale) |
|---|---|
| Category rank | #28,668 |
| Street price | $149 |
| Power | 6 W (active) |
| Performance per dollar | 52.17 |
| Released | 2023 |
Specifications
| Brand | Caldera |
|---|---|
| Model | Caldera SN-6645 SE |
| Capacity | 1 TB |
| Form factor | M.2 2280 |
| Interface | PCIe 4.0 x4, NVMe 2.0 |
| Sequential read | 5,600 MB/s |
| Sequential write | 4,100 MB/s |
| Random 4K read | 770K IOPS |
| NAND | 3D TLC, 218-layer |
| Cache | DRAM-less (HMB) |
| Endurance | 600 TBW (0.33 DWPD) |
| Warranty | 5 years |
| Heatsink | None |
Related guides
NVMe SSDs ExplainedM.2 SSD Sizes and KeysSSD Endurance ExplainedDRAM vs DRAM-less SSDsPCIe 4.0 vs PCIe 5.0
Similar SSDs
| Model | Benchmark | Price | Compare |
|---|---|---|---|
| Caldera SN-7798 SE 8TB PCIe 5.0 NVMe M.2 2280 SSD | 12,935 | $519 | Compare |
| Novexa SN-5896 XT 4TB PCIe 5.0 NVMe M.2 2280 SSD | 13,754 | $449 | Compare |
| Novexa SN-7198 Max 8TB PCIe 4.0 NVMe M.2 2280 SSD | 14,845 | $499 | Compare |
| Altrix SN-7953 Core 8TB PCIe 5.0 NVMe M.2 2280 SSD | 11,602 | $339 | Compare |
| Novexa SN-6016 Max 4TB PCIe 5.0 NVMe M.2 2280 SSD | 14,900 | $599 | Compare |
| Altrix SN-9675 Edge 500GB PCIe 4.0 NVMe M.2 2280 SSD | 4,470 | $49 | Compare |
Cite this page: Hardware Spec Index, “Caldera SN-6645 SE 1TB PCIe 4.0 NVMe M.2 2280 SSD”, https://vextor7.com/item/3215066 (accessed 2026-10-20).