Dell PowerEdge R720 (2014) review

Dell’s flagship 2U rack server gets a big boost with Xeon E5-2600 v2 CPUs, faster memory and lightning quick SSD read caching.

Editor's Choice
Price
£11,060
  • Supports E5-2600 v2 Xeons, superb design, high expansion potential, excellent virtualisation features
  • CacheCade still only accelerates read ops

As a general purpose rack server, Dell's PowerEdge R720 has always been a top choice and this latest version offers an even higher processing density and increased performance. It supports Intel's E5-2600 v2 CPUs which deliver more cores and better performance without a significant increase in power demands.

Memory speeds are increased to 1,866MHz and Dell has implemented its patented Fault Resilient Memory (FRM) feature. Supporting the new Reliable Memory Technology feature of VMware's vSphere 5.5, this allows a protected memory zone to be created for the hypervisor without taking up half the system memory.

The Dell Processor Acceleration Technology (DPAT) targets high frequency trading applications that require consistent and predictable processor performance. Intel's Turbo Boost transitions can increase latency and jitter but DPAT allows you to fix the number of active cores and Turbo Boost speed to minimise these effects and provide a smoother performance.

Our review system also came with the CacheCade feature of Dell's PERC RAID controller enabled. This is designed to use SSDs to improve read operations and our lab tests show what a big difference it can make.

The R720 is very well designed and its 2U chassis offers an impressive range of feature and expansion options.

The v2 Xeons

The E5-2600 v2 Xeons see a drop to a 22nm fab allowing them to deliver more cores and better performance without increasing power consumption. Dell supplied the review system with a pair of E5-2680 v2 Xeons which are members of Intel's Advanced team of CPUs.

These new 2.8GHz Xeons are 10-core models, have 25MB of L3 cache, support 1,866MHz memory speeds and have a TDP of 115W. The first generation E5-2680 Xeon runs at 2.7GHz, has 8 cores plus a 20MB L3 cache and a higher 130W TDP.

The E5-2600 v2 family is big with the Advanced, Standard and Basic models bringing the count to seventeen. The E5-2680 v2 models in the review system will set you back around 1,500 each but you can choose lower cost models as the R720 supports the entire family.

Dell's CacheCade is quick to configure and delivers an enormous boost to read IOPS.

CacheCade performance

The review system included four 146GB SAS 2 SFF drives and a pair of 200GB Intel S3700 SATA SSDs. The CacheCade feature is accessed from the PERC's BIOS menu where you select the SSDs and create a virtual drive. 

CacheCade is supported on the PERC H700 and H800 cards with 1GB of memory but Dell has still only implemented v1.0 so it will only cache read operations. You can use as many drives as you want and CacheCade creates a RAID-0 stripe from them.

Featured Resources

Next-generation time series: Forecasting for the real world, not the ideal world

Solve time series problems with AI

Free download

The future of productivity

Driving your business forward with Microsoft Office 365

Free download

How to plan for endpoint security against ever-evolving cyber threats

Safeguard your devices, data, and reputation

Free download

A quantitative comparison of UPS monitoring and servicing approaches across edge environments

Effective UPS fleet management

Free download

Recommended

Apple MacBook Pro 15in vs Dell XPS 15: Clash of the titans
Laptops

Apple MacBook Pro 15in vs Dell XPS 15: Clash of the titans

11 Oct 2021
To manage or not to manage
Sponsored

To manage or not to manage

6 Oct 2021
Dell Inspiron Small Desktop 3881 review: Keep it simple
Hardware

Dell Inspiron Small Desktop 3881 review: Keep it simple

29 Sep 2021
Moving away from the overprovisioning mind-set
Sponsored

Moving away from the overprovisioning mind-set

23 Sep 2021

Most Popular

Best Linux distros 2021
operating systems

Best Linux distros 2021

11 Oct 2021
Apple MacBook Pro 15in vs Dell XPS 15: Clash of the titans
Laptops

Apple MacBook Pro 15in vs Dell XPS 15: Clash of the titans

11 Oct 2021
Royal Mint to recover gold from smartphones and laptops in world first
Technology

Royal Mint to recover gold from smartphones and laptops in world first

21 Oct 2021