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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 6142 2.6GHz 16-core 512GB DDR4 H730P 8x 1.2TB SAS

SKU CH-ZG38-XT3ZC

1U rack server with dual 16-core Xeon Gold 6142 CPUs, 512GB DDR4 ECC memory, PERC H730P RAID controller, eight 1.2TB 10K SAS drives, quad-port 1GbE and 10GbE networking.

  • ProcessorIntel Xeon
  • Installed RAM512 GB
  • Video RAM8 MB
  • Installed SSDNo
  • ChipsetIntel C620
  • Processor core count16-Core Processor
  • Dual 16-core Xeon Gold 6142 CPUs deliver 32 threads at 2.6 GHz base
  • 512 GB DDR4 2666 MHz registered ECC memory supports large datasets
  • PERC H730P 2 GB controller enables RAID 0/1/5/6/10/50/60 with battery backup
  • Eight 1.2 TB 10 K SAS drives supply high-speed storage capacity
  • iDRAC9 Enterprise provides remote management with dedicated network ports

Dense 1U dual-socket server

The Dell PowerEdge R640 fits two Intel Xeon Gold 6142 processors and 512 GB of DDR4 memory into a single rack unit. It targets operators who need high core counts in a compact footprint for virtualization or database clusters. Buyers who require more than two sockets or GPU acceleration will need a larger chassis.

16 cores per CPU at 2.6 GHz base

Each Xeon Gold 6142 delivers 16 cores with a 2.6 GHz base frequency and 3.7 GHz turbo. The dual-socket configuration yields 32 total cores for heavily threaded workloads. Systems limited to a single processor or lower core counts cannot match this parallel throughput.

Sustained throughput with redundant 750 W supplies

Dual 750 W platinum power supplies and hot-swap drive bays keep the array and controllers running during extended compute jobs. The PERC H730P controller battery protects cached writes if power fluctuates. Environments without redundant power or battery-backed RAID risk data loss under continuous load.

How it compares

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

Price $2,957.99
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 count16-Core Processor
Processor socketLGA 3647
ChipsetIntel C620
Processor speed2.6 GHz
Installed CPUs2
Max supported CPUs2
Memory
Installed RAM512 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

What does the 3.7GHz turbo on the dual Xeon Gold 6142 CPUs mean for actual workloads?

The two 16-core processors run at a 2.6GHz base and can reach 3.7GHz turbo when thermal headroom allows, giving up to 32 cores of burst performance for compute-intensive tasks.

How does the PERC H730P 12Gb/s SAS controller limit the eight 1.2TB 10K drives in practice?

The H730P connects each 2.5-inch SAS drive at 12Gb/s and supports RAID 0, 1, 5, 6, 10, 50 and 60, so the array topology you choose determines usable capacity and redundancy.

What physical space and mounting hardware does the 1U server require?

The chassis occupies one rack unit, includes ready rails for square-hole or round-hole cabinets, and ships with a front bezel for a clean installation.

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