Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 vs Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB
Best value of the 2 kits compared is the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21, at β¬17.005/GB β 15% cheaper per gigabyte than the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB. Price per GB is the metric this site ranks value on and lower is better, so that is the kit to beat.
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Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 vs Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB: full breakdown
Value: price per gigabyte
On price per GB β the only value metric this site ranks on, and lower is better β the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 leads at β¬17.005/GB, 15% cheaper per gigabyte than the next kit, the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB at β¬20.017/GB.
Capacity and module layout
The Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 is 1x64GB and the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB is 1x64GB. Every kit here totals 64GB, so capacity is not the deciding factor. Every kit here is a single module. That is maximum upgrade headroom β the other slots stay free β but a lone stick runs single-channel until a matching module joins it.
Speed and latency
Clocks and timings: the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 at 2,933 MT/s CL21 and the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB at 3,200 MT/s CL22. The Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB clocks highest at 3,200 MT/s, 9% above the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 at 2,933 MT/s. True latency, where lower is better, favours the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB at 13.8 ns against 14.3 ns on the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21. That is the figure that settles a higher-CAS-at-higher-clock argument; MT/s or CAS on its own does not.
Current price against MSRP
Current listings: the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 at β¬1,088.34 and the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB at β¬1,281.09. The lowest current outlay is the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 at β¬1,088.34, though the smallest total price is not the same question as the best price per GB. No MSRP is on file for any of these kits, so street price is the only reference point.
Which of these 2 kits should you buy?
Buy the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21. It is the cheapest per gigabyte of the 2 kits compared at β¬17.005/GB β 15% under the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB, the next cheapest per gigabyte β and it is in stock, which is the whole question price per GB is meant to settle. If raw speed matters more to you than cost per gigabyte, the Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB is the faster kit at 3,200 MT/s β expect to pay for it.
Technical Specifications Comparison
Capacity & Modules
| Specification | Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 | Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB |
|---|---|---|
| Total capacity | 64GBβ | 64GB |
| Module layout | 1Γ64GB | 1Γ64GB |
| Module count | 1 | 1 |
| Form factor | RDIMM | RDIMM |
| Category | server | server |
Speed & Latency
| Specification | Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 | Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB |
|---|---|---|
| Memory type | DDR4 | DDR4 |
| Speed | 2,933 MT/s | 3,200 MT/sβ |
| CAS latency | CL21β | CL22 |
| True latency | 14.3 ns | 13.8 nsβ |
Features
| Specification | Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 | Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB |
|---|---|---|
| ECC support | Yes | Yes |
| RGB lighting | No | No |
Pricing & Value
| Specification | Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 | Kingston KTD-PE432/64G DDR4-3200 RDIMM 1x64GB |
|---|---|---|
| MSRP | β | β |
| Best price | β¬1,088.34β | β¬1,281.09 |
| Price per GB | β¬17.005β | β¬20.017 |