Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB vs NEMIX DDR5-6400 ECC RDIMM 4x16GB
On true latency NEMIX DDR5-6400 ECC RDIMM 4x16GB comes out ahead: 16.25 ns, where Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB takes 16.43 ns. The site holds no current price for at least one of these, so what follows compares specifications alone.
| Specification | KingstonServer Premier DDR5-5600 ECC RDIMM 1x64GB | NEMIXDDR5-6400 ECC RDIMM 4x16GB |
|---|---|---|
| Capacity (GB) | 64 | 64 |
| Speed (MT/s) | 5600 | 6400better |
| 46 | 52 | |
| True latency (ns) | 16.43 | 16.25better |
| Current best price | £2,787.19at Amazon.co.uk · captured 2026-09-13 | — |
| Price per GB | £43.55 | — |
No tracked price for NEMIX DDR5-6400 ECC RDIMM 4x16GB at the moment. Nothing has been captured for it that this page will stand behind, so its price cells stay empty rather than carrying a stale figure.
Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB vs NEMIX DDR5-6400 ECC RDIMM 4x16GB in detail
True latency
NEMIX DDR5-6400 ECC RDIMM 4x16GB is the lower-latency kit at 16.25 ns against 16.43 ns for Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB, 0.18 ns between them. That is the figure that reconciles the two spec sheets: a CAS number counts cycles, and cycles mean nothing apart from the rate they are counted at. Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB runs 5600 MT/s at CL46; NEMIX DDR5-6400 ECC RDIMM 4x16GB runs 6400 MT/s at CL52.
Transfer rate
NEMIX DDR5-6400 ECC RDIMM 4x16GB carries the higher rating, 6400 MT/s to 5600 MT/s for Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB — 51200 MB/s per module against 44800 MB/s. That is peak transfer rate, not access time: a higher clock is reached by counting more cycles for each access, which is why the CAS numbers differ too and why the true latency above is the directly comparable figure.
Kit layout
Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB ships as 1 × 64GB, NEMIX DDR5-6400 ECC RDIMM 4x16GB ships as 4 × 16GB. A real difference, and not a ranking: more sticks fill more channels on a board that has them, while fewer sticks leave slots free for adding later. Which suits comes down to the board and to whether more memory is planned.
Lighting and ECC
On lighting: Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB is published with no RGB lighting, and NEMIX DDR5-6400 ECC RDIMM 4x16GB is published with no RGB lighting. On error correction: Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB supports ECC, and NEMIX DDR5-6400 ECC RDIMM 4x16GB supports ECC. ECC is a board and CPU feature as much as a module one, so it is worth having only where the platform can use it.
Which to buy
At least one of these kits has no tracked price right now, so this page has no buying answer to give: which is worth more depends on what each costs, and that is exactly what is missing. On specifications alone, NEMIX DDR5-6400 ECC RDIMM 4x16GB has the lower true latency at 16.25 ns.
Common questions about this pair
- Is Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB faster than NEMIX DDR5-6400 ECC RDIMM 4x16GB?
- Yes, on true latency: 16.25 ns for NEMIX DDR5-6400 ECC RDIMM 4x16GB against 16.43 ns for Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB. Kingston Server Premier DDR5-5600 ECC RDIMM 1x64GB runs 5600 MT/s at CL46 and NEMIX DDR5-6400 ECC RDIMM 4x16GB runs 6400 MT/s at CL52, and the CAS numbers alone will not settle it — they count clock cycles, not time.
- Which of these two should I buy?
- At least one of these kits has no tracked price right now, so this page has no buying answer to give: which is worth more depends on what each costs, and that is exactly what is missing. On specifications alone, NEMIX DDR5-6400 ECC RDIMM 4x16GB has the lower true latency at 16.25 ns.