Dell PowerEdge R660 Server Types, Specs, and Technical Comparison

The Dell PowerEdge R660 is Dell’s newest 1U dual-socket server, supporting 4th and 5th Gen Intel Xeon CPUs with up to 56 cores each. With DDR5 and PCIe Gen5, it offers faster memory and I/O speed.

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It handles significantly more VDI and SAP users compared to earlier models and, thanks to its Smart Flow chassis, cuts fan power use dramatically. Tests show much higher work per euro and lower energy use per task—making it great for doing more with fewer servers.

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Dell PowerEdge R660 Server Core Architecture Overview

The Dell PowerEdge R660 server family shares a common main design that combines new hardware with business-class security and easy management. Main features include:

• Processors: Dual-socket support for 4th and 5th Gen Intel Xeon Scalable CPUs with up to 56 cores per processor.

  
  

• Memory: Up to 32 DDR5 DIMM slots (16 per socket) on the R660, supporting up to 8 TB; up to 16 DDR5 DIMMs on the R660xs, supporting up to 1.5 TB.

  
  

• Storage: Flexible drive setups from up to 10 x 2.5" front drives plus 2 rear drives on the R660, and dense NVMe (up to 16 E3.S drives) on the R660xs.

  
  

• Expansion & I/O: PCIe Gen5 slots (up to 3 on both models) with modular risers; OCP 3.0 NIC slot on all models.

  
  

• Security & Management: Dell’s iDRAC9, silicon Root of Trust, TPM 2.0, Secure Boot, system lockdown, and Dell OpenManage for full system control.

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Dell PowerEdge R660 Server Types

Dell PowerEdge R660 (Mainstream Flagship)

The R660 is a balanced, high-speed server supporting up to 2× 56-core CPUs, 32 DIMMs, 10 front SFF drives plus 2 rear, and optional dense NVMe. It works well for virtualization, database jobs, and general enterprise needs. It also supports up to 3 single-width GPUs, making it flexible for light acceleration.

Dell PowerEdge R660xs (Value-Optimized Model)

A low-cost option for standard virtualization and SDS jobs, the R660xs supports up to 2× 56-core CPUs, 16 DIMMs (1.5 TB max), and dense NVMe setups with up to 16 E3.S drives. GPU support is basic – up to 2 low-profile GPUs only.

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Dell PowerEdge R660 Server Type Comparison

Feature	PowerEdge R660 (Mainstream)	PowerEdge R660xs (Value Optimized)
Form Factor	1U rack server	1U rack server
Processors (Max)	2 × Xeon (4th/5th Gen), up to 56 cores	Same
Memory Capacity	32 DIMM (DDR5), up to 8 TB	16 DIMM (DDR5), up to 1.5 TB
Front Drive Bays	Up to 10 SFF + 2 rear	Up to 10 SFF or dense E3.S NVMe
Max NVMe Support	Up to 10 U.2 + 2 rear; up to 16 E3.S NVMe	Dense NVMe via E3.S
GPU Support	Up to 3 single-width GPUs	Up to 2 low-profile GPUs
PCIe Expansion	Up to 3 PCIe Gen5	Up to 3 PCIe Gen5
Ideal Use Case	Virtualization, database, mixed workloads	SDS, VDI, low-cost workloads

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How to Choose the Right Dell PowerEdge R660 Server Model

• Dell PowerEdge R660: Best all-rounder with storage and GPU flexibility.

• Dell PowerEdge R660xs: Best for budget-friendly virtual jobs.

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✔️ No Upfront Payment Required - Test First, Pay Later!