Dell R620 vs R720 Servers


Built for maximum memory capacity and enhanced performance, the Dell R620 and R720 servers are both effective solutions for your data center. The Dell R620 has the key feature of having a large memory capability despite its small size, making it a great server for data centers with limited space. The Dell R720 also has advanced memory capabilities, with the key feature of handling very demanding workloads such as high-performance computing (HPC).

Below is a side-by-side comparison of these two servers and how each of them can be a great solution for your data center needs.

Memory Capabilities

The Dell R620 contains memory options of up to 768GB with 24 DIMM slots. This means that it has expandable memory options giving it a memory footprint that is difficult to compete with. The 2 PCIe slots as well as scalable I/O capabilities enhance its memory performance. This high memory capacity makes the server a good option for demanding virtualization environments with many virtual machines for each server.

The Dell R720 also has expandable memory up to 768GB along with 72 PCIe slots and advanced I/O capabilities. You can combine the memory density of the Dell R720 with a GPU accelerator in order to further boost performance.

View Products:    Dell R620     Dell R720

Workload Capabilities

Have a small data center? The Dell R620 is the option for you. It is packed with powerful processing capabilities within its small compact size. HPC application clusters are effectively handled through its computational density capabilities. It is powered by the Intel Xeon E5-2600 processor that makes it powerful at handling virtualization and workgroup collaboration applications.

The R720 is also a performance powerhouse. Equipped with the same Intel processor, it has the additional ability to support dual RAID controllers. This makes it handle highly demanding workloads such as e-commerce platforms, Virtual Desktop Infrastructure (VDI) and data warehouses. HPC is also within the realm of capabilities of this powerful server.


Organizations today are storing more data than ever, making storage a very important factor in choosing the right server. The R620 can handle up to ten 2.5” drives hot-plug SAS, SATA, or SSD or up to four hot-plug 2.5” SAS, SATA, or SSD + two PCIe SSD, with a maximum internal storage of of 10TB.

When a greater capacity of storage is required, the R720 boasts up to eight 3.5” drives or up to sixteen 2.5” drives with a maximum 32TB internal storage.

Server-Specific Features

The Dell R620 and R720 each have additional specific features that make them stand out from each other. The R620 contains advanced network features that allow you to tailor your network throughput in a manner that matches the needs of your applications. The server also contains flexible NIC technology through the Dell Select Network adapters. This gives you an array of options (such as speed and technology), letting you select the necessary network fabric without using up a PCI slot.

The R720, on the other hand, is a virtualization powerhouse. You can expand your virtual memory through redundant failsafe hypervisors or Dell’s Virtual Integrated System (VIS), which both allow you to maximize the capacity of your applications. With the R720, you can also boost the performance of your HPC environments by using a combination of the server’s advanced memory density with GPU accelerators (of which a range of them are supported).

Support for Dell OpenManage 

The Dell R620 and R720 are both members of the PowerEdge family from Dell, a line of servers which are designed with performance scalability and advanced features for your data center in mind. Both servers are equipped with Dell’s flagship remote management software called Dell OpenManage.

OpenManage contains the Integrated Dell Remote Access Controller (iDRAC) which is packed with features that allow IT administrators to manage Dell servers in physical, virtual and even remote environments. In fact, this remote access can be achieved without the need of a system’s software agent.

What’s more? With OpenManage, you can seamlessly integrate with 3rd party systems management solutions all while maintaining a single point of control.

The Dell R620 and R720 servers are both designed for advanced memory capability and performance. The choice should be based on your specific budget and requirements. Speak to the experts at SourceTech, consultants and providers of high quality new, used and refurbished servers for over 20 years.

Published at: 23-05-2017
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