Virtualization has become the cornerstone of modern IT infrastructure, enabling businesses to maximize hardware resource utilization, reduce operational costs, and enhance business process flexibility. Selecting the right server for virtualization is a critically important decision that directly impacts the performance, scalability, and reliability of your entire infrastructure. DELL PowerEdge servers have established themselves as reliable platforms for running virtual environments thanks to powerful processors, large amounts of RAM, and well-designed architecture.
For virtualization, three main parameters are critically important: the number of processor cores for parallel task processing, the amount of RAM to host multiple virtual machines, and high-performance storage systems. Modern DELL PowerEdge 15th and 16th generation servers based on third and fourth generation Intel Xeon Scalable processors are ideally suited for these tasks, offering up to 40 cores per processor, support for DDR4/DDR5 memory up to several terabytes, and advanced RAID controllers for data protection.
In this article, we will examine five of the best DELL server models for virtualization of various scales — from compact solutions for small businesses to powerful dual-processor systems for corporate data centers. We will analyze their technical specifications, advantages, and optimal usage scenarios to help you make the right choice for your infrastructure.
DELL Virtualization Servers Comparison Table
| Model | Processor | RAM (max) | Storage | Form Factor | Use Case |
|---|---|---|---|---|---|
| DELL PowerEdge R450 | Up to 2× Intel Xeon Scalable 3rd Gen (up to 24 cores) | 1 TB DDR4 | Up to 8× 2.5" SAS/SATA | 1U | Small to medium business, branch offices |
| DELL PowerEdge R650 | Up to 2× Intel Xeon Scalable 3rd Gen (up to 40 cores) | Not specified | Up to 10× 2.5" SAS/SATA/NVMe | 1U | Mid-scale virtualization |
| DELL PowerEdge R750 | Up to 2× Intel Xeon Scalable 3rd Gen (up to 40 cores) | Up to 4 TB DDR4 | Up to 24× 2.5" SAS/SATA/NVMe | 2U | Enterprise virtualization |
| DELL PowerEdge R660 | Intel Xeon Bronze 3408U (8 cores) | 16 GB DDR5 | Up to 8 bays | 1U | Entry-level virtualization |
| DELL PowerEdge R760 | Up to 2× Intel Xeon Scalable 4th Gen (up to 40 cores) | Up to 8 TB DDR5 | Up to 24× 2.5" SAS/SATA/NVMe | 2U | High-performance virtualization |
DELL PowerEdge R450 — Compact Virtualization Solution
The DELL PowerEdge R450 server is a single-processor or dual-processor system in a compact 1U chassis, perfectly suited for deploying virtualization in small offices, branch locations, and remote sites. Despite its compact size, the R450 provides sufficient performance to run dozens of virtual machines thanks to support for third generation Intel Xeon Scalable processors with up to 24 cores each.
Technical Specifications
- Processors: Up to two 3rd Gen Intel Xeon Scalable, up to 24 cores per processor
- Memory: 16 DDR4 DIMM slots, up to 1 TB with RDIMM, speeds up to 2933 MT/s
- Storage: Up to 8× 2.5" SAS/SATA (HDD/SSD) bays, maximum 61.4 TB
- RAID Controllers: PERC H345, H355, HBA355i, H745, H755, S150
- Network Adapters: 2× 1GbE LOM, optional OCP 3.0
- Remote Management: iDRAC9 with Quick Sync 2
- Power Supplies: 600W/800W/1100W Platinum, hot-swap
- Form Factor: 1U rack (42.8 × 482 × 734.95 mm)
Who It's For
The DELL PowerEdge R450 is an optimal choice for organizations requiring a compact virtualization solution with a balance of performance and rack density. The server is ideal for company branch offices where local virtualization infrastructure needs to be deployed in limited space. The R450 handles tasks like running virtual application servers, domain controllers, file servers, and monitoring systems. With support for VMware ESXi, Microsoft Hyper-V, and other hypervisors, the server easily integrates into existing infrastructure.
DELL PowerEdge R650 — Universal Virtualization Platform
The DELL PowerEdge R650 model ranks among the most popular servers for virtualization due to its optimal combination of performance, expandability, and compactness. The 1U form factor server with support for two third generation Intel Xeon Scalable processors can provide high virtual machine density while efficiently using rack space.
Technical Specifications
- Processors: Up to two 3rd Gen Intel Xeon Scalable, up to 40 cores per processor
- Memory: DDR4 RDIMM support, registered ECC memory
- Storage: Up to 10× 2.5" SAS/SATA/NVMe, up to 4× 3.5" SAS/SATA, rear bays up to 2× 2.5"
- Maximum Storage Capacity: Up to 153 TB with front bays
- RAID Controllers: PERC H745, HBA355I, S150, H355, H345, H755, H755N
- Boot Devices: BOSS-S1/S2 (2× M.2 SSD 240/480 GB)
- Power Supplies: 800W Platinum, 1100W Titanium, 1400W Platinum, 1100W DC
- Cooling System: Standard/high-performance fans, up to 4 hot-swap sets
- Network Adapters: 2× 1GbE LOM, optional OCP 3.0 (x8 PCIe)
- GPU: Up to three single-width 75W
- Form Factor: 1U rack (42.8 × 482 × 809 mm)
Who It's For
The DELL PowerEdge R650 is a universal platform for mid-scale virtualization. The server is excellent for companies deploying VMware vSphere, Microsoft Hyper-V, or Citrix Hypervisor infrastructure with several dozen virtual machines. Thanks to NVMe drive support and powerful processors, the R650 handles resource-intensive applications, databases, and VDI virtual desktop systems. Optional GPU support makes the server suitable for graphics-accelerated workloads.
DELL PowerEdge R750 — Powerful Enterprise Virtualization Platform
The DELL PowerEdge R750 server in a 2U form factor represents a high-performance platform for enterprise virtualization. With support for up to 32 DDR4 memory slots, the ability to install up to 24 drives, and powerful dual-processor configurations, the R750 can handle hundreds of virtual machines simultaneously.
Technical Specifications
- Processors: Up to two 3rd Gen Intel Xeon Scalable, up to 40 cores per processor
- Memory: 32 DDR4 DIMM slots, up to 2 TB with RDIMM or 4 TB with LRDIMM, speeds up to 3200 MT/s
- Intel Persistent Memory Support: Up to 16 slots series 200 (BPS), up to 8 TB
- Front Storage: Up to 12× 3.5" or 16× 2.5" or 24× 2.5" or 8× 2.5" NVMe
- Rear Storage: Up to 2× 2.5" or 4× 2.5" SAS/SATA/NVMe
- Maximum Capacity: Up to 368.84 TB with 24× 2.5" drives
- RAID Controllers: PERC H745, HBA355I, S150, H345, H755, H755N
- Boot Devices: BOSS-S1/S2 (2× M.2 SSD)
- Power Supplies: 800W Platinum, 1100W Titanium, 1400W Platinum, 1100W DC
- Cooling: Standard air cooling, optional processor liquid cooling
- Fans: Up to six hot-swap
- GPU: Up to two double-width 300W, or four single-width 150W, or six single-width 75W
- PCIe: Up to 8 Gen4 slots (up to 6× x16)
- Form Factor: 2U rack (86.8 × 482 × 758.3 mm)
Who It's For
The DELL PowerEdge R750 is a flagship solution for large organizations with high virtualization requirements. The server is ideal for building VMware vSAN clusters, deploying VDI desktop virtualization systems for hundreds of users, and consolidating multiple physical servers into a virtual environment. Large memory capacity and Intel Persistent Memory support enable running memory-intensive applications and databases in virtual machines. Optional support for powerful GPUs makes the R750 suitable for virtualizing graphics applications and AI inference.
DELL PowerEdge R660 — Modern Platform on 16th Generation Processors
The DELL PowerEdge R660 server represents the latest generation of DELL servers with DDR5 memory support and modern processors. The 1U form factor model is suitable for organizations wanting to leverage the advantages of latest technologies for building virtualized infrastructure.
Technical Specifications
- Processor: Intel Xeon Bronze 3408U (8 cores, 22.5 MB cache, 1.80 GHz)
- Memory: 16 GB DDR5 RDIMM 4800 MHz (expandable)
- RAID Controller: DELL H755 (8 GB + BBU)
- Remote Management: iDRAC 9 Express
- Power Supplies: 2× DELL 800W Hot-Plug
- Network Adapters: 2 ports 1Gb/s (integrated)
- Storage: Up to 8 drive bays
- Form Factor: 1U rack with rails
Who It's For
The DELL PowerEdge R660 is suitable for organizations starting their virtualization journey or modernizing existing infrastructure. The base configuration with Intel Xeon Bronze processor and 16 GB DDR5 memory provides good performance for running several virtual machines with light workloads. DDR5 memory provides increased bandwidth compared to DDR4, which positively impacts virtualized workload performance. The server easily scales as business needs grow.
DELL PowerEdge R760 — Next-Generation Virtualization Flagship
The DELL PowerEdge R760 model represents the most modern and powerful virtualization platform in the DELL lineup. The 2U form factor server with fourth generation Intel Xeon Scalable processor support and DDR5 memory delivers unmatched performance for the most demanding virtualized environments.
Technical Specifications
- Processors: Up to two 4th Gen Intel Xeon Scalable, up to 40 cores per processor
- Memory: 32 DDR5 DIMM slots, up to 8 TB maximum (LRDIMM), speeds up to 4800 MT/s
- Intel Persistent Memory Support: Up to 16 slots series 200
- Front Storage: Up to 12× 3.5" or 16× 2.5" or 24× 2.5" or 8× 2.5" NVMe
- Rear Storage: Up to 2× 2.5" or 4× 2.5" SAS/SATA/NVMe
- Maximum Capacity: Up to 368.84 TB
- RAID Controllers: PERC H745, HBA355I, S150, H345, H755, H755N
- Boot Devices: BOSS-S2 (2× M.2 SSD 240/480 GB)
- Power Supplies: 700W Titanium, 800W Platinum, 1100W Titanium, 1400W Platinum, 1800W Titanium, 2400W Platinum, 2800W Titanium
- Cooling: Air cooling, optional processor liquid cooling
- Fans: Up to six hot-swap
- Remote Management: iDRAC9 with Quick Sync 2
- Form Factor: 2U rack (86.8 × 482 × 758.3 mm)
Who It's For
The DELL PowerEdge R760 is the optimal choice for large corporate data centers with maximum virtualization performance requirements. The server handles hundreds of virtual machines thanks to massive DDR5 memory capacity (up to 8 TB) and powerful processors with up to 80 cores in dual-processor configuration. DDR5 memory provides up to 50% bandwidth increase compared to DDR4, which is critical for virtualization. The R760 is ideal for building VMware vSphere/vSAN clusters, Microsoft Azure Stack HCI, deploying massive VDI virtualization, data center consolidation, and running demanding virtualized databases.
Server Selection Recommendations for Virtualization
Server Selection Criteria
1. Virtualization Scale
The number of planned virtual machines directly determines server requirements. For 10-20 VMs, the DELL PowerEdge R660 or R450 is sufficient; for 30-50 VMs, consider the R650; and for 100+ VMs, the R750 or R760 with maximum memory configuration is necessary.
2. Memory Requirements
Memory is the key resource for virtualization. Calculate at least 4-8 GB RAM per Windows Server virtual machine and 2-4 GB per Linux VM. Add 10-20% reserve for the hypervisor. For mission-critical systems, choose servers with maximum memory capacity: R750 (up to 4 TB) or R760 (up to 8 TB).
3. Storage Performance
Disk subsystem speed is critical for virtualization. SSD drives are mandatory for storing virtual machines with intensive I/O operations. NVMe drives provide maximum performance for databases and applications. Consider models supporting up to 24 drives (R750, R760) for building high-performance storage systems.
4. Rack Density
If rack space is limited, choose 1U servers (R450, R650, R660). For maximum performance per rack unit, 2U servers (R750, R760) are preferable with the ability to install more memory and drives.
5. Budget and TCO
Consider not only acquisition cost but also operational expenses. Servers with efficient Titanium power supplies (R750, R760) reduce electricity costs. Models with hot-swap components decrease downtime and maintenance costs.
Configuration Recommendations for Different Scenarios
Small Business (10-15 Virtual Machines)
- Model: DELL PowerEdge R660 or R450
- Processor: 1× Intel Xeon Bronze/Silver (8-12 cores)
- Memory: 64-128 GB DDR4/DDR5
- Storage: 4× 960 GB SSD in RAID 10
- Approximate Cost: from $3,000
Medium Business (30-50 Virtual Machines)
- Model: DELL PowerEdge R650
- Processors: 2× Intel Xeon Silver/Gold (24-32 cores)
- Memory: 256-512 GB DDR4
- Storage: 8× 1.92 TB SSD in RAID 6 + 2× NVMe for cache
- Approximate Cost: from $8,000
Enterprise Infrastructure (100+ Virtual Machines)
- Model: DELL PowerEdge R750 or R760
- Processors: 2× Intel Xeon Gold/Platinum (40-80 cores)
- Memory: 1-2 TB DDR4/DDR5
- Storage: 16× 3.84 TB SSD or 12× NVMe for maximum performance
- Approximate Cost: from $15,000
VDI (Virtual Desktops)
- Model: DELL PowerEdge R750 with GPU
- Processors: 2× Intel Xeon Gold (32-40 cores)
- Memory: 512 GB - 1 TB DDR4
- Storage: NVMe drives for maximum IOPS
- GPU: NVIDIA T4 or similar for graphics applications
- Approximate Cost: from $12,000
Conclusion
Choosing a server for virtualization is a strategic decision that determines the performance, reliability, and scalability of your IT infrastructure for years to come. DELL PowerEdge servers offer a wide range of solutions for any requirement — from the compact R450 for small offices to the powerful R760 for corporate data centers.
When selecting a server, pay attention to three key parameters: the number of processor cores for parallel virtual machine processing, the amount of RAM for hosting guest systems, and disk subsystem performance for ensuring high IOPS. Don't skimp on memory — it's the most critical resource for virtualization and the hardest to scale after purchase.
All reviewed models support leading virtualization platforms: VMware vSphere/ESXi, Microsoft Hyper-V, Citrix Hypervisor, Red Hat Virtualization, and Linux-based KVM. The servers are equipped with iDRAC9 remote management system, which allows infrastructure administration from anywhere in the world, significantly simplifying virtualized environment maintenance.
Ready to build reliable virtualization infrastructure? Explore the complete catalog of DELL PowerEdge servers on our website or contact our specialists to select the optimal configuration for your needs. ServerMall offers both new servers of the latest generations and certified refurbished systems with quality guarantee at competitive prices.
