Dell R940 Compatible Processors

The Dell R940 supports 59 processors in our catalog, spanning the Cascade Lake and Skylake families. Every processor in the table on this page is verified compatible with the Dell R940 — filter by core count, clock speed or TDP to narrow the list.

The 2.10Ghz Platinum 8176M 28-Core 165W is the highest core count processor we list for the Dell R940, at 28 cores. Higher core counts suit virtualization and container hosts where total thread count matters more than per-core speed.

By clock speed, the 3.60Ghz Gold 6244 8-Core 150W tops the list for the Dell R940 at 4.4GHz. Fewer, faster cores generally win for databases and applications licensed per core.

Processors for the Dell R940 use the LGA 3647 socket. A processor must match both the socket and the chassis generation to work, which is why this page lists only verified-compatible parts.

Compatible processors for the Dell R940 range from 85W to 205W TDP. Higher TDP parts run hotter and may require specific heatsinks or fan configurations — contact our team if you are unsure what your chassis is configured for.

Yes — the Dell R840 and Dell R940xa share the same processor compatibility as the Dell R940, so a CPU listed here will drop into any of them. That makes these platforms straightforward to standardize on if you run a mixed fleet, and it means spare processors carry over between them.

Yes. Configure a Dell R940 to order and pick your processors, memory, storage and controllers in one build, and we will assemble, test and ship it configured. Every system carries a one year warranty, extendable to five.

Server processors have no moving parts and are among the most durable components in a system. Every CPU we sell for the Dell R940 is tested before it ships and backed by the same one year warranty as our systems.