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Silver 1U rack server front with eight 2.5 inch drive bays and bezel

DELL

DELL PowerEdge R640 1U Rack Server 2x Xeon Gold 6148 2.4GHz 20 Core 128GB DDR4 2x 800GB SSD H730P

SKU CH-3KGV-D6AWG

Dual 20-core Xeon Gold 6148 processors with 128GB DDR4 ECC memory, PERC H730P RAID controller, two 800GB SATA SSDs, quad-port 1GbE/10GbE networking and iDRAC9 Enterprise in a 1U rack chassis

  • ProcessorIntel Xeon
  • Installed RAM128 GB
  • Video RAM8 MB
  • Installed SSD2 × 800 GB SATA SSD
  • ChipsetIntel C620
  • Processor core count20-Core Processor
  • Dual 20-core Xeon Gold 6148 CPUs deliver 40 total cores for heavy workloads
  • 128GB DDR4 2666MHz ECC memory supports large datasets and virtualization
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 for data protection
  • Two 800GB SATA SSDs provide fast boot and application storage
  • Quad-port X520/I350 network card adds 2×1GbE and 2×10GbE SFP+ connectivity

Dense 1U dual-socket server

The PowerEdge R640 is a 1U rack server built for dense scale-out deployments. It carries two Intel Xeon Gold 6148 processors, each with 20 cores at 2.4 GHz and a 3.7 GHz turbo frequency. The system includes 128 GB of DDR4 2666 MHz registered ECC memory across eight modules. A PERC H730P controller with 2 GB cache manages storage.

For virtualisation and compute clusters.

This server suits environments that need high core counts and fast networking in a single rack unit. The quad-port 1GbE and 10Gb SFP+ daughter card supports heavy east-west traffic. Buyers who need GPU acceleration or more than two processors should look elsewhere because the chassis maxes out at two sockets and has no GPU clearance.

24 DDR4 slots with 3 TB maximum capacity

The motherboard provides 24 DIMM slots and supports up to 3 TB of DDR4 registered ECC memory. This ceiling determines whether the platform can grow with your dataset or if a larger chassis is required.

How it compares

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

Price $1,216.99
Cheaper than about 67% of the 17,641 comparable items (median $1,910.99).
Installed RAM 128 GB
Typical for this category: the median of 15,103 items is 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 RAM128 GB
Type of memoryDDR4
Maximum RAM capacity3 TB
Memory slot count24
Storage
Installed SSD2 × 800 GB SATA SSD
Disk controllerDell Perc H730P 2 GB Controller
Drive interfaceSATA
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

What is the maximum memory capacity the R640 can reach with its 24 DDR4 slots?

The server supports up to 3TB of DDR4 memory across its 24 slots, allowing significant expansion beyond the installed 128GB.

How much power can the redundant 750W platinum supplies deliver continuously for all-day operation?

Each hot-swap supply is rated at 750 watts with platinum efficiency, providing redundant power for the dual Xeon Gold 6148 CPUs and eight drive bays.

Which storage controller is fitted and what RAID levels does it support?

The Dell PERC H730P 2GB controller handles SAS and SATA drives and supports RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode.

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