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Dell PowerEdge R640 1U rack server front with ten 2.5-inch drive bays

DELL

DELL PowerEdge R640 40-Core 2x Xeon Gold 6248 256GB DDR4 10x 2.5" NVMe rack server

SKU CH-PYX3-4AFT7

A 40-core rack server with dual Xeon Gold 6248 CPUs, 256GB DDR4, and ten 2.5-inch NVMe drive bays for virtualization and database workloads

  • ProcessorGold 6248
  • Installed RAM256 GB
  • Processor core count8
  • Operating systemNo
  • Type of memoryDDR4
  • Processor socketLGA3647
  • 40 cores across two Xeon Gold 6248 CPUs power heavy virtualization workloads
  • 256 GB DDR4 memory runs multiple VMs and data-intensive apps smoothly
  • Ten 2.5-inch bays with eight NVMe slots let you add fast flash storage
  • Dual 25 Gbps and dual 100 Gbps networking handles high-throughput traffic
  • 1U rack-mount chassis fits standard data-centre racks for dense deployments

Purpose-built virtualization server

The Dell PowerEdge R640 is a 1U rack server designed for virtualization, databases, file storage and application hosting. Two Intel Xeon Gold 6248 processors deliver 40 total cores at 2.50 GHz. The system ships with 256 GB of DDR4 memory and supports up to 3 TB maximum capacity.

Ideal fit and limits

This server suits IT teams that need dense compute and flexible NVMe storage in a standard rack footprint. It is not for buyers who require pre-installed drives, an operating system, or a GPU accelerator. Workloads that demand more than two processor sockets or memory beyond 3 TB will need a different platform.

Deciding specification

Ten 2.5-inch drive bays with eight NVMe-capable slots define the storage ceiling. If your deployment needs more than eight high-speed NVMe devices or a larger drive count, this chassis cannot accommodate it.

How it compares

Measured against everything we stock in Rack & Tower Servers, at today’s prices. Recalculated every night.

Price $2,253.99
Pricier than about 56% of the 17,641 comparable items (median $1,910.99).
Installed RAM 256 GB
Higher than about 60% of the 15,103 comparable items (median 128 GB).
Processor core count 8
Lower than about 90% of the 7,955 comparable items (median 16).

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Specifications

Product
Brand nameDELL
Product typeWorkstation
Processor
ProcessorGold 6248
Processor core count8
Processor socketLGA3647
Processor speed2.5 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM256 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Storage
Drive bays10B - 10x 2.5 in (8x NVMe Capable)
Graphics
Graphics chipIntegrated
Software
Operating systemNo
More details
Indicator lightsPower, Ethernet, USB

Questions about this item

How often should the fan modules in the PowerEdge R640 be inspected or replaced during continuous operation?

The chassis uses hot-plug redundant fan modules that can be swapped without downtime; Dell recommends checking fan health during routine server-room maintenance cycles.

What limits sustained compute throughput on the dual Xeon Gold 6248 CPUs in this server?

The 40 combined cores running at 2.50 GHz set the processing ceiling; memory bandwidth and the 3 TB DDR4 capacity ceiling become the next bottlenecks under heavy virtualization loads.

How much heat and noise does the R640 generate when all 10 NVMe bays and both CPUs are fully loaded?

Dual 25 Gbps and dual 100 Gbps network ports plus 10 NVMe drives add I/O heat; the redundant power supplies and fan wall keep exhaust temperatures within data-center limits, though rack airflow must handle the combined load.

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