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Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 vs PHS-memory DDR4-3200 ECC RDIMM 1x64GB

Specs compared: 2 kits

Specs only: none of the 2 kits compared has a usable price right now, so price per GB β€” the metric this site ranks value on β€” cannot be computed for any of them. The PHS-memory DDR4-3200 ECC RDIMM 1x64GB clocks highest at 3,200 MT/s.

KingstonDDR4
Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21
Price per GB
β€”
Best price
Out of stock
Capacity
64GBβœ“
Modules
1Γ—64GB
Speed
2,933 MT/s
Latency
14.3 ns
Key specs advantage
+5% CAS latency (CL21 vs CL22)
No listingsNo offers found for this kit in US.
vs
PHS-memoryDDR4
PHS-memory DDR4-3200 ECC RDIMM 1x64GB
Price per GB
β€”
Best price
Out of stock
Capacity
64GB
Modules
1Γ—64GB
Speed
3,200 MT/sβœ“
Latency
13.8 nsβœ“
Key specs advantage
+9% Speed (3,200 MT/s vs 2,933 MT/s)
+4% True latency (13.8ns vs 14.3ns)
No listingsNo offers found for this kit in US.
Skip to Spec Sheets ↓

Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21 vs PHS-memory DDR4-3200 ECC RDIMM 1x64GB: full breakdown

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.

Which of these 2 kits should you buy?

This comparison cannot be settled on value: none of the 2 kits compared has a usable price, so price per GB β€” the only value metric on this site β€” cannot be computed for any of them. The PHS-memory DDR4-3200 ECC RDIMM 1x64GB carries the highest clock at 3,200 MT/s, which is the strongest thing that can be said for any of them right now. Pick on capacity and timings, or come back once prices are listed.

Technical Specifications Comparison

Capacity & Modules

Capacity & Modules comparison between Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21, PHS-memory DDR4-3200 ECC RDIMM 1x64GB
SpecificationKingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21PHS-memory DDR4-3200 ECC RDIMM 1x64GB
Total capacity64GBβœ“64GB
Module layout1Γ—64GB1Γ—64GB
Module count11
Form factorRDIMMRDIMM
Categoryserverserver

Speed & Latency

Speed & Latency comparison between Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21, PHS-memory DDR4-3200 ECC RDIMM 1x64GB
SpecificationKingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21PHS-memory DDR4-3200 ECC RDIMM 1x64GB
Memory typeDDR4DDR4
Speed2,933 MT/s3,200 MT/sβœ“
CAS latencyCL21βœ“CL22
True latency14.3 ns13.8 nsβœ“

Features

Features comparison between Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21, PHS-memory DDR4-3200 ECC RDIMM 1x64GB
SpecificationKingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21PHS-memory DDR4-3200 ECC RDIMM 1x64GB
ECC supportYesYes
RGB lightingNoNo

Pricing & Value

Pricing & Value comparison between Kingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21, PHS-memory DDR4-3200 ECC RDIMM 1x64GB
SpecificationKingston DDR4-2666 ECC RDIMM 1x64GB 2933 CL21PHS-memory DDR4-3200 ECC RDIMM 1x64GB
MSRPβ€”β€”
Best priceOut of stockOut of stock
Price per GBβ€”β€”

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