Quick Comparison of Lenovo ThinkSystem ST550 Tower Server vs Dell PowerEdge R660xs Rack Server at a Glance

The server comparison table provides a quick overview of the key specifications and key features for Lenovo ThinkSystem ST550 Tower Server and Dell PowerEdge R660xs Rack Server Let’s take a look at the comparison table below.

Features	Lenovo ThinkSystem ST550 Tower Server View Check the Price	Dell PowerEdge R660xs Rack Server View Check the Price
Server Type / Form Factor	Type: Tower Server Form Factor: 4U rackable tower Socket: Dual socket (supports 2nd Gen Intel Xeon Scalable Platinum/Silver up to 125 W per CPU)	Type: Rack Server Form Factor: 1U Rackmount Socket: Dual socket (supports 4th and 5th Gen Intel Xeon Scalable)
Processor (CPU)	Supported CPUs: Up to two 2nd Generation Intel Xeon Scalable processors (Platinum/Silver up to 125 W)	Supported CPUs: Up to two 5th Gen Intel Xeon Scalable processors (up to 32 cores/socket) Also supports: 4th Gen Intel Xeon Scalable processors (up to 32 cores/socket) TDP: Up to 250 W per processor
Memory (RAM)	Memory Type: TruDDR4 ECC Registered DIMM Slots: 12 slots total (6 per CPU) Max Capacity: Up to 768 GB with 64 GB DIMMs Speed: Up to 2933 MT/s (2666 MT/s also supported)	Memory Type: DDR5 RDIMM ECC DIMM Slots: 16 slots total Max Capacity: Up to 1.5 TB Speed: Up to 5200 MT/s
Storage	Drive Bay Options: Up to 16 × 2.5 SAS/SATA hot swap bays (including up to 4 NVMe) Or up to 8 × 3.5 hot swap bays Plus up to 4 × 2.5 internal bays + 2 × M.2 boot drives Controllers: Software RAID standard; optional hardware RAID and up to 16 port HBAs available	Drive Bay Options: Up to 4 × 3.5 SAS/SATA (max ~96 TB) Up to 8 × 2.5 SAS/SATA/NVMe (max ~122.9 TB) Up to 10 × 2.5 SAS/SATA/NVMe (max ~153.6 TB) Rear Bays: Up to 2 × 2.5 SAS/SATA/NVMe (~15.2 TB) Controllers: PERC H965i, H755, H755N, H355, HBA355i, HBA465i; BOSS N1 dual M.2 boot; Software RAID S160
Expansion / Connectivity	PCIe Slots: Up to 6 × PCIe 3.0 slots (with 2 CPUs installed) Networking: 2 × 1 GbE LOM standard; optional NICs via PCIe	PCIe Slots: CPU/config dependent; up to 2 (1 CPU) or 3 (2 CPU) slots, Gen4/Gen5 mix x16/x8 Networking: Embedded dual 1 GbE LOM; optional OCP 3.0 mezzanine slot (10/25 GbE options)
Redundancy & Reliability	Power Supplies: 1 × fixed 450 W Gold PSU; or 2 × hot swap redundant PSUs (550 W/750 W/1100 W Platinum, or 750 W Titanium) Cooling: Hot swap chassis fans, chassis intrusion switch; drive/tray redundancy	Power Supplies: Hot plug redundant PSUs (600W–1800W AC/DC Titanium/Platinum options) Cooling: Up to 7 hot swap fans; standard and high performance cooling configurations
Operating System Support	Microsoft Windows Server Red Hat Enterprise Linux SUSE Linux Enterprise Server VMware vSphere / ESXi	Microsoft Windows Server with Hyper V Red Hat Enterprise Linux SUSE Linux Enterprise Server VMware ESXi / vSAN Canonical Ubuntu Server LTS
Security Features	Lenovo ThinkShield (lockable bezel, Kensington lock slot, chassis intrusion) TPM 1.2 and TPM 2.0 supported Predictive Failure Analysis, hot swap redundant drives and PSUs	Cryptographically signed firmware and Silicon based Root of Trust Secure Boot, Secure Erase, System Lockdown (requires iDRAC9 Enterprise or Datacenter) TPM 2.0 (FIPS, CC TCG certified)
Management & Monitoring	Lenovo XClarity Controller (embedded) with XClarity Administrator support Includes Redfish API support and XClarity Integrator and Energy Manager plugins	iDRAC9 with Lifecycle Controller, iDRAC Direct USB port RESTful Redfish API; iDRAC Service Module Tools: Dell OpenManage Enterprise, CloudIQ, integrations with VMware, Microsoft, Ansible, Terraform
Warranty & Support	Standard Warranty: 3 Years Warranty Support Options: Warranty extensions available via Lenovo service offerings	Standard Warranty: 3-Year Dell Basic Hardware Warranty Recommended Support: Dell ProSupport or ProSupport Plus with Onsite Service options (extendable up to 5 years)

Key Features Comparison

High Performance and Scalability

The ST550 supports Intel Xeon Scalable processors and provides flexible storage options, making it suitable for demanding applications and workloads as your business grows.

Advanced Storage Flexibility

With support for multiple storage configurations, including up to 12 3.5-inch drives, businesses can scale their storage capacity as needed

Enhanced Virtualization Support

Optimized for virtualization workloads, the ST550 offers significant performance enhancements for running virtualized environments, increasing operational efficiency

Energy-Efficient Design

Lenovo’s energy-efficient architecture ensures the ST550 delivers performance without excessive power consumption, helping to reduce operational costs

Remote Management Capabilities

Integrated with Lenovo XClarity Controller for remote management, providing streamlined deployment and proactive monitoring, even in remote or distributed environments

Security Features

Built-in security features, including TPM 2.0 and secure boot, protect your sensitive data and ensure the integrity of your server

Compact 1U Dual-Socket Design

Optimized for performance in space-constrained environments, offering a perfect blend of density and capability.

Supports up to two processors with advanced performance for data-intensive workloads.

High-Speed DDR5 Memory

Up to 16 DDR5 DIMMs delivering faster data access and improved efficiency for demanding applications.

PCIe Gen5 Support

Enhanced bandwidth for modern networking, storage, and accelerator needs.

Flexible Storage Options

Supports a variety of SAS/SATA/NVMe configurations to meet diverse storage requirements.

Built-In Security and Management

Includes Dell OpenManage and cyber-resilient architecture for secure and simplified system management.

Lenovo ThinkSystem ST550 Tower Server vs Dell PowerEdge R660xs Rack Server : Which should I choose?

Choosing the right server is a critical decision for any business, and comparing Lenovo ThinkSystem ST550 Tower Server and Dell PowerEdge R660xs Rack Server gives you clear insights into which solution aligns best with your IT requirements. These servers are built for high performance, but they may differ in areas such as processor capacity, memory, storage, and scalability, making a side-by-side comparison easy.

This direct comparison helps you quickly identify the strengths and limitations of each server, which helps you determine which model best supports your workloads, applications, and long-term IT goals. By evaluating them together, you can make a smarter investment that ensures reliability and efficiency for your business.

Quick Comparison of Lenovo ThinkSystem ST550 Tower Server vs Dell PowerEdge R660xs Rack Server at a Glance

Lenovo ThinkSystem ST550 Tower Server

Dell PowerEdge R660xs Rack Server

Key Features Comparison

Lenovo ThinkSystem ST550 Tower Server vs Dell PowerEdge R660xs Rack Server : Which should I choose?

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