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Silver 1U rack server with front bezel, eight 2.5-inch drive bays, redundant power supplies and rails

DELL

DELL PowerEdge R640 1U rack server 2x Xeon Gold 6148 20-core 768GB DDR4 8x 2.4TB SAS H730P

SKU CH-J5NK-FD8BT

Dual 20-core Xeon Gold 6148 1U rack server with 768GB DDR4, PERC H730P RAID and eight 2.4TB SAS drives

  • ProcessorIntel Xeon
  • Installed RAM768 GB
  • Video RAM8 MB
  • Installed SSDNo
  • ChipsetIntel C620
  • Processor core count20-Core Processor
  • Dual Xeon Gold 6148 CPUs deliver 40 cores at 2.4 GHz base clock
  • 768 GB DDR4 2666 MHz ECC memory across 24 slots for large datasets
  • PERC H730P controller supports RAID 0/1/5/6/10/50/60 with 2 GB cache
  • Eight 2.4 TB 10K SAS drives provide high-speed redundant storage
  • iDRAC 9 Enterprise enables full remote management with dedicated network ports

Dual-socket 1U rack server for dense compute

The Dell PowerEdge R640 packs two Intel Xeon Gold 6148 20-core processors running at 2.4 GHz with 3.7 GHz turbo into a single rack unit. It ships with 768 GB of DDR4 2666 MHz registered ECC memory across 24 slots and eight 2.4 TB 10K SAS drives on a PERC H730P 2 GB controller supporting RAID 0, 1, 5, 6, 10, 50 and 60.

Suits virtualization clusters and database nodes

This platform targets scale-out workloads that benefit from dual-socket performance in a 1U form factor. Buyers who need GPU acceleration or more than two processors should look elsewhere, as the chassis supports a maximum of two CPUs and has no GPU capability listed.

768 GB DDR4 2666 MHz ECC memory capacity

The installed 768 GB across 24 slots is the key figure for memory-bound applications. The system accepts up to 3 TB total, so workloads requiring larger in-memory datasets can expand within the same chassis.

How it compares

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

Price $5,532.99
Pricier than about 79% of the 17,641 comparable items (median $1,910.99).
Installed RAM 768 GB
Higher than about 90% of the 15,103 comparable items (median 128 GB).
Video RAM 8 MB
Typical for this category: the median of 8,309 items is 0.01 GB.

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Specifications

Product
Brand nameDELL
Product linePowerEdge R640
Model nameR640
Product typeRack
Processor
ProcessorIntel Xeon
Processor core count20-Core Processor
Processor socketLGA 3647
ChipsetIntel C620
Processor speed2.4 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM768 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSDNo
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSAS
Supported RAID levelsRAID 0/1/5/6/10/50/60
Graphics
Video RAM8 MB
Graphics chipMatrox G200
Connectivity
Network controllerDell Intel X520/I350 Quad Port 2x 1GbE 2x 10Gb SFP+ Network Daughter Card
Ports & slots
Network ports4 x Ports
Expansion card slotsUp to 3 PCIe Gen 3 slots all x16
Management interfaceRJ 45
Power
Hot-swap redundant PSUYes
Size & build
Rack height1U
Software
Operating systemNo

Other versions of this model

5 more in the same range

Questions about this item

Will the 2.5-inch SAS bays and H730P controller work with my existing 12Gb/s SAS drives?

The chassis has eight 2.5-inch bays wired to the PERC H730P 2GB controller which supports 12Gb/s SAS and SATA, so your current 12Gb/s SAS drives will connect and operate at full speed.

How can I verify the dual Xeon Gold 6148 processors and 768GB DDR4 are recognised after installation?

Open iDRAC9 Enterprise or enter the BIOS; both will show two 20-core CPUs at 2.4GHz with 3.7GHz turbo and 768GB of 2666MHz registered ECC memory across all 24 slots.

Which items ship with the server and what must I purchase separately?

The unit includes the 1U chassis, bezel, ready rails, two 750W platinum power supplies, X520/I350 quad-port network card, H730P controller with battery, eight 2.4TB 10K SAS drives and 24x 32GB DDR4 modules; only an operating system licence and SFP+ transceivers for 10GbE ports are extra.

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