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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 512GB DDR4 H730P 2x 800GB SSD

SKU CH-BKDD-PPQB6

Dual 20-core Xeon Gold 6148 CPUs, 512GB DDR4, H730P RAID and two 800GB SSDs in a 1U rack server

  • ProcessorIntel Xeon
  • Installed RAM512 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
  • 512GB DDR4 2666MHz ECC memory across 16 slots supports large datasets
  • PERC H730P 2GB controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Two 800GB enterprise SATA SSDs provide fast boot and application storage
  • Quad-port X520/I350 network card adds 2x 1GbE and 2x 10Gb SFP+ connectivity

Dual-socket 1U server for dense scale-out

The PowerEdge R640 fits two Xeon Gold 6148 processors into a single rack unit. Each CPU runs at 2.4 GHz with 20 cores and a 3.7 GHz turbo frequency. The platform targets workloads that need high core counts in minimal space.

H730P controller and quad-port networking

The PERC H730P adds 2 GB cache and supports RAID 0, 1, 5, 6, 10, 50 and 60 plus pass-through mode. An Intel X520/I350 daughter card provides two 1 GbE and two 10 Gb SFP+ ports. iDRAC 9 Enterprise enables full remote management.

512 GB DDR4 across 16 slots filled

Installed memory uses 16 registered ECC modules at 2666 MHz, leaving eight DIMM slots open for expansion up to 3 TB. Buyers who need more memory capacity must add modules; the board accepts no other DDR generation.

How it compares

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

Price $2,916.99
Pricier than about 64% of the 17,641 comparable items (median $1,910.99).
Installed RAM 512 GB
Higher than about 80% 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 RAM512 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 maintenance will the PERC H730P RAID controller battery need?

The PERC H730P includes a battery-backed write cache; the battery is a field-replaceable unit that typically requires replacement every three to five years to preserve cache protection during power loss.

Which limit appears first when both Xeon Gold 6148 processors run at 3.7GHz turbo across all 20 cores continuously?

The 750W platinum power supplies set the first ceiling; sustained all-core turbo on both 20-core CPUs can exceed the redundant power budget before thermal throttling activates.

How loud are the fans and how much heat does the 1U chassis produce during 24/7 operation?

Six high-speed 40mm fans keep the 1U node within thermal limits; at full load they generate data-centre grade noise levels and exhaust several hundred watts of heat into the rack aisle.

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