DELL PowerEdge Comparison

This chart will go over key differences in the Dell PowerEdge R X40 Product Family. These Dell servers are now only available used, refurbished condition, but still carry a 1 year guarantee against hardware failure.

Dell PowerEdge Servers come in 1, 2, or 3 Rack Unit configurations, and features 1-4 sockets. Sockets are the system’s ability to install processors. When it comes to similarities in the systems, there’s a lot. The RAM Dell uses in each is the type, and the available disks and processors for each model are the same. It comes down to a matter of capacity, and chassis based factors (cooling, power, etc).

We make it a habit to recommend our customers get at least a 2 socket model, for both performance and redundancy. For that reason, we don’t include single socket options in our comparisons, or our inventory.


PowerEdge Sockets  Memory Slots Max RAM Max Disk Drives RU
R440 2 16 1TB 10 SFF(2.5″)

4 LFF(3.5″)

R540 2 16 1TB 14 LFF (3.5″) 2U
R640 2 24 7.68TB 12 SFF(2.5″)

4 LFF(3.5″)

R740 2 24 7.68TB 16 SFF(2.5″)

8 LFF(3.5″)

R740xd 2 24 7.68TB 32 SFF(2.5″)

18 LFF(3.5″)

R840 4 48 15.36TB 26 SFF(2.5″) 2U
R940 4 48 15.36TB 24 SFF(2.5″) 3U


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