Netac Shadow II DDR4-3200 2x8GB vs Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15
Netac Shadow II DDR4-3200 2x8GB has the lower true latency of the two at 10.00 ns, against 14.06 ns for Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15. Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 is the cheaper of the two at the prices tracked here, so each kit leads on one axis and neither leads on both.
| Specification | NetacShadow II DDR4-3200 2x8GB | TimetecPremium DDR4-2666 UDIMM 1x16GB 2133 CL15 |
|---|---|---|
| Capacity (GB) | 16 | 16 |
| Speed (MT/s) | 3200better | 2133 |
| 16 | 15 | |
| True latency (ns) | 10.00better | 14.06 |
| Current best price | $139.73at Amazon.ca · captured 2026-09-13 | $129.99betterat Amazon.ca · captured 2026-09-13 |
| Price per GB | $8.73 | $8.12better |
Netac Shadow II DDR4-3200 2x8GB vs Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 in detail
True latency
Netac Shadow II DDR4-3200 2x8GB is the lower-latency kit at 10.00 ns against 14.06 ns for Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15, 4.07 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. Netac Shadow II DDR4-3200 2x8GB runs 3200 MT/s at CL16; Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 runs 2133 MT/s at CL15.
Transfer rate
Netac Shadow II DDR4-3200 2x8GB carries the higher rating, 3200 MT/s to 2133 MT/s for Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 — 25600 MB/s per module against 17064 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.
Price and tracked history
Netac Shadow II DDR4-3200 2x8GB is tracked at $139.73, or $8.73 per gigabyte; Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 at $129.99, or $8.12. At the same 16GB, that puts Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 $9.74 less than Netac Shadow II DDR4-3200 2x8GB. $139.73 is the lowest this site has ever recorded for Netac Shadow II DDR4-3200 2x8GB.
Kit layout
Netac Shadow II DDR4-3200 2x8GB ships as 2 × 8GB, Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 ships as 1 × 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.
Voltage
Netac Shadow II DDR4-3200 2x8GB is specified at 1.35 V and Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 at 1.2 V. That is the supply each kit's published profile requests from the board.
Lighting, timings and ECC
On lighting: Netac Shadow II DDR4-3200 2x8GB is published with no RGB lighting, and Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 is published with no RGB lighting. On the full timing tuple — the numbers after CAS — Netac Shadow II DDR4-3200 2x8GB is 16-20-20-40, and Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 publishes none. On error correction: the catalog does not state whether Netac Shadow II DDR4-3200 2x8GB has it, and Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 is published without 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
Neither of these leads outright, so there is no single answer to give. Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 costs less at the prices tracked here; Netac Shadow II DDR4-3200 2x8GB has the lower true latency, 10.00 ns against 14.06 ns. Which of those two is worth more is a judgement about the machine and the budget, and this page does not make it for a reader.
Common questions about this pair
- Is Netac Shadow II DDR4-3200 2x8GB faster than Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15?
- Yes, on true latency: 10.00 ns for Netac Shadow II DDR4-3200 2x8GB against 14.06 ns for Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15. Netac Shadow II DDR4-3200 2x8GB runs 3200 MT/s at CL16 and Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 runs 2133 MT/s at CL15, and the CAS numbers alone will not settle it — they count clock cycles, not time.
- Which one costs less?
- Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15, tracked at $129.99 against $139.73: $9.74 between them at the same 16GB.
- Which of these two should I buy?
- Neither of these leads outright, so there is no single answer to give. Timetec Premium DDR4-2666 UDIMM 1x16GB 2133 CL15 costs less at the prices tracked here; Netac Shadow II DDR4-3200 2x8GB has the lower true latency, 10.00 ns against 14.06 ns. Which of those two is worth more is a judgement about the machine and the budget, and this page does not make it for a reader.