Quick Comparison of Lenovo ThinkSystem ST550 Tower Server vs PowerEdge T550 Tower 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 PowerEdge T550 Tower Server Let’s take a look at the comparison table below.

Features	Lenovo ThinkSystem ST550 Tower Server View Check the Price	PowerEdge T550 Tower 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: Tower Server Form Factor: 5U Tower chassis Socket: Dual socket (supports two 3rd Generation Intel Xeon Scalable processors, up to 36 cores each)
Processor (CPU)	Supported CPUs: Up to two 2nd Generation Intel Xeon Scalable processors (Platinum/Silver up to 125 W)	Supported CPUs: Up to two 3rd Generation Intel Xeon Scalable processors (up to 36 cores each)
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: Registered ECC DDR4 RDIMM DIMM Slots: 16 slots total Max Capacity: Up to 2 TB Speed: Up to 3200 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 8 × 2.5 SAS/SATA (max ~120 TB) Up to 16 × 2.5 SAS/SATA (max ~240 TB) Up to 24 × 2.5 SAS/SATA (max ~360 TB) Up to 8 × 3.5 SAS/SATA + 8 × 2.5 NVMe (max ~240 TB) Controllers: PERC H345, H355, H745, H755, H755N; HBA355i; S150; Boot: BOSS S2 dual M.2; External: PERC H840
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: Up to 6 PCIe Gen 4 expansion slots (config dependent) Networking: Embedded dual 1 GbE LOM; optional OCP 3.0 mezzanine card
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: Dual hot plug redundant PSUs: 600W Platinum, 700W Titanium, 800W Platinum, 1100W Titanium, 1400W Platinum, 1800W Titanium, 2400W Platinum (AC or DC options) Cooling: Up to 8 hot swap fans; standard or high performance (silver grade) thermal options
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 Canonical Ubuntu Server LTS Citrix Hypervisor
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; Silicon Root of Trust Secure Boot, Secure Erase, System Lockdown (requires iDRAC9 Enterprise or Datacenter) TPM 2.0 (FIPS, CC TCG certified; includes China NationZ certification)
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; Power Manager, SupportAssist, Update Manager plugins; CloudIQ; OpenManage Mobile; integrations with VMware vCenter, Microsoft System Center, 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 with 5×10 Next Business Day Onsite Service Optional Extended Support: Dell ProSupport or ProSupport Plus available beyond 3 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

Scalable Performance

Supports up to two 3rd Generation Intel Xeon Scalable processors with up to 36 cores each for high-performance computing.

Massive Memory Capacity

Accommodates up to 1TB DDR4 memory across 16 DIMM slots with speeds up to 3200 MT/s, ideal for data-intensive applications.

Versatile Storage Options

Offers flexible storage configurations with support for both 3.5-inch and 2.5-inch SAS, SATA, and NVMe drives.

Advanced PCIe Expansion

Includes up to 8 x PCIe Gen4 slots for enhanced I/O performance, GPU support, and future scalability.

Enterprise-Class Management

Integrated iDRAC9 and Dell OpenManage for remote monitoring, system updates, and automated management.

Robust Security Features

Features like Secure Boot, TPM 2.0, and Silicon Root of Trust ensure data protection and hardware integrity.

Lenovo ThinkSystem ST550 Tower Server vs PowerEdge T550 Tower Server : Which should I choose?

Choosing the right server is a critical decision for any business, and comparing Lenovo ThinkSystem ST550 Tower Server and PowerEdge T550 Tower 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.

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