Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 vs PHS-memory DDR4-3200 ECC RDIMM 1x64GB
Best value of the 2 kits compared is the PHS-memory DDR4-3200 ECC RDIMM 1x64GB, at β¬11.203/GB β 35% cheaper per gigabyte than the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21. Price per GB is the metric this site ranks value on and lower is better, so that is the kit to beat.
Add to comparison (2/5)
Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 vs PHS-memory DDR4-3200 ECC 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 PHS-memory DDR4-3200 ECC RDIMM 1x64GB leads at β¬11.203/GB, 35% cheaper per gigabyte than the next kit, the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 at β¬17.284/GB.
Capacity and module layout
The Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 is 1x64GB and the PHS-memory DDR4-3200 ECC 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 PHS-memory DDR4-3200 ECC RDIMM 1x64GB at 3,200 MT/s CL22. The PHS-memory DDR4-3200 ECC 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 PHS-memory DDR4-3200 ECC 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¬1,106.18 and the PHS-memory DDR4-3200 ECC RDIMM 1x64GB at β¬716.99. The lowest current outlay is the PHS-memory DDR4-3200 ECC RDIMM 1x64GB at β¬716.99, 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 PHS-memory DDR4-3200 ECC RDIMM 1x64GB. It is the cheapest per gigabyte of the 2 kits compared at β¬11.203/GB β 35% under the Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21, the next cheapest per gigabyte β and it is in stock, which is the whole question price per GB is meant to settle.
Technical Specifications Comparison
Capacity & Modules
| Specification | Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 | PHS-memory DDR4-3200 ECC 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 | PHS-memory DDR4-3200 ECC 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 | PHS-memory DDR4-3200 ECC RDIMM 1x64GB |
|---|---|---|
| ECC support | Yes | Yes |
| RGB lighting | No | No |
Pricing & Value
| Specification | Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 | PHS-memory DDR4-3200 ECC RDIMM 1x64GB |
|---|---|---|
| MSRP | β | β |
| Best price | β¬1,106.18 | β¬716.99β |
| Price per GB | β¬17.284 | β¬11.203β |