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Dell PowerEdge R-Series vs Lenovo Flex System comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Dell PowerEdge R-Series
Ranking in Blade Servers
3rd
Average Rating
9.0
Reviews Sentiment
7.2
Number of Reviews
279
Ranking in other categories
Converged Infrastructure (1st), Data Center Networking (4th), Rack Servers (1st)
Lenovo Flex System
Ranking in Blade Servers
9th
Average Rating
8.4
Reviews Sentiment
7.7
Number of Reviews
10
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Blade Servers category, the mindshare of Dell PowerEdge R-Series is 5.0%, up from 1.6% compared to the previous year. The mindshare of Lenovo Flex System is 4.5%, up from 3.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Blade Servers Mindshare Distribution
ProductMindshare (%)
Dell PowerEdge R-Series5.0%
Lenovo Flex System4.5%
Other90.5%
Blade Servers
 

Featured Reviews

Tom van Mil - PeerSpot reviewer
Systems Administrator at Lico Innovations B.v.
Supports flexible hosting needs through seamless upgradability and strong monitoring capabilities
The most valuable features of Dell PowerEdge R-Series for me are the feature richness and the upgradability. I really love the way that it is so dynamically applicable for every situation, and they manage to have an all-in-one solution for every single situation. Dell PowerEdge has supported the growth and operational success of my company through its great compute power and price-to-performance ratio. Every time Dell is at the top of its game for us, and there is just no other brand for us that is able to reach that kind of price-to-performance ratio. Dell PowerEdge R-Series has features that specifically cater to the needs of my small company, such as iDRAC. The iDRAC system is a complete feature set for managing servers and hardware technically and monitoring-wise. It really fits in our system and our ecosystem, and monitoring-wise, it is excellent. They have all these sensors available via different protocols and end points, which I love, and the ability to manage and control everything via the iDRAC interface is just a welcome bonus. In our use case, Dell PowerEdge R-Series is very flexible. It is another computer which helps a lot because of the durability over time. They keep running, making scalability for getting more of those resources in our environment so easy.
FA
Senior System Administrator at Khushhali Microfinance Bank
Used to run the compute load on servers, but firmware and driver upgrades are a bit difficult
We use the solution for multiple purposes, such as in the virtualization cluster and the standalone applications We use the solution as a compute model to run the compute load on servers. The solution's firmware and driver upgrades are a bit difficult. I have been using Lenovo Flex System for…

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I have not experienced any performance issues with the Dell PowerEdge Rack Servers."
"Reliability is important for us. They are reliable, and the service is very good."
"Dell PowerEdge Rack Servers can help with that because it is the platform our whole business runs on - it's the foundation."
"New Dell PowerEdge Rack Servers consistently perform better as technology improves."
"The ability to do everything through that iDRAC interface is a key for us, allowing us to perform tasks remotely without needing to physically touch anything."
"Dell PowerEdge Rack Servers scale with the growing needs of my company."
"Using PowerEdge helped to reduce unplanned production downtime by 20% to 25%."
"My advice for anybody who is considering this solution is that it's the support from Dell that really makes things easier for us."
"The functionality is reliable and requires minimal support."
"The initial setup is straightforward."
"I have found the solution to be quite stable."
"It comes at a good price. We didn't face any problems with this product."
"One of the most valuable features of this solution is its ease of use."
"It's stable, it works well, and we have had no problem with it for a long time."
"The product is very user-friendly and has many resources at the enterprise level."
"The most valuable feature of the Lenovo Flex System is the storage system."
 

Cons

"I'd like to take the complexities out of all the different tools that surround it, like OpenManage."
"More integration to third-party services would be a great upgrade."
"Support could be escalated upwards a bit faster for Dell PowerEdge R-Series. It stays too long at the lower support levels before it is passed on to real specialists."
"Since the start of COVID, there is a shortage of support resources and it is challenging to get queries resolved quickly."
"We have storage and would like to manage more backups without adding extra storage devices. Maybe it's already there. I need to look at it more."
"From the licensing model perspective, it might be useful for enterprises to get an overall enterprise license, rather than licensing each server. That is one option because we tend to buy the service with the licenses, but some of our older equipment does not have them."
"Dell is trying to find their identity, and in recent years, they seem to be searching for their company identity with their core brands, struggling to be more flexible and adapt to the changing world."
"I wish that Dell had a competitive product to the HPE MicroServer because if they did, I would buy them, not in their hundreds, but certainly in their tens, especially in my capacity as an MSP."
"The solution's firmware and driver upgrades are a bit difficult."
"The user interface needs improvement because they have an application from which we have to manage the whole system and all of the infrastructure."
"It does not have the same module flexibility that was present in IBM Blade. On the Blade System, I was able to choose between the Cisco module, or BMC module; since the switch to Lenovo, I have not had the same choice of modules, only the BMC modules."
"Flex System's integration with the XClarity Management System could be improved."
"The user-interface needs improvement, because they have an application from which we have to manage the whole system and all the infrastructure. This application is not working at our premises, because of some problem with the hardware itself. So although we brought it with our systems, and we used it to manage all the systems: the storage, the switches, and everything, nevertheless we have to support every part alone and enter the interface in one-by-one."
"The price of the Lenovo Flex System could improve."
"Forced restarts due to free upgrades is an issue that needs to be resolved. We can manage this as we have high availability and redundancy, but without that it could be a real problem."
"I had some difficulties with the initial setup."
 

Pricing and Cost Advice

"PowerEdge is not a cheap product. It's a quality product, but there is always competition. If you want to buy a server, you need an operating system, and most of it is Microsoft. A bundled solution costs less than a separate operating system and hardware."
"The pricing is very competitive."
"Dell is somewhat more expensive than HPE."
"The server is a one-time purchase, but the support is on a subscription basis."
"PowerEdge pricing is equivalent to that of all the others in the market."
"If price isn't a concern, I would recommend it."
"The high cost of Dell PowerEdge Rack Server licenses is attributed to the pre-installed Windows Server operating system from Microsoft."
"The price is good for the quality of the Dell PowerEdge Rack Servers."
"There is a one-off payment to buy the equipment and the support is purchased annually."
"The is an annual license cost to use the Lenovo Flex System. If the price was less expensive and flexible overall and for additional features, our customers would be happier."
"We are just paying the operational cost, which is not much."
"We have the whole maintenance for the 3 years, starting the deployment. We also have the VMware license for 3 years and I think we have another license to buy. There are no additional costs besides licensing."
"The 14 blade server allows significant room for upscaling before having to invest in another chassis. You would have to purchase another chassis much sooner in the case of an eight or nine blade server."
"The price is interesting. I am able to quote a client based on their needs and offer them either Lenovo or Dell."
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Top Industries

By visitors reading reviews
Manufacturing Company
12%
Computer Software Company
9%
Financial Services Firm
7%
University
7%
Financial Services Firm
13%
Construction Company
13%
Manufacturing Company
11%
University
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business101
Midsize Enterprise59
Large Enterprise117
By reviewers
Company SizeCount
Small Business3
Large Enterprise7
 

Questions from the Community

When shopping for a rack server, would you go with Dell EMC Poweredge or Lenovo Thinksystem?
Our organization ran comparison tests to determine whether the Dell EMC Poweredge or Lenovo Thinksystem rack servers were the better fit for us. We ultimately decided to go with Dell EMC Poweredge....
What do you like most about Dell EMC PowerEdge Rack Servers?
It has helped us reduce unplanned downtime by 20% to 30%.
What needs improvement with Dell EMC PowerEdge Rack Servers?
The prediction of hardware error using some AI tools could still be improved.
What is your experience regarding pricing and costs for Lenovo Flex System?
Compared to its quality, the pricing is very reasonable and represents good value.
What needs improvement with Lenovo Flex System?
Continuing the production of this product is necessary. It is currently out of support, and we are seeking support from other sources besides Lenovo.
What is your primary use case for Lenovo Flex System?
We are using Lenovo Flex System on the server for our VMware environment, which includes our VMs and all our servers, Linux and Windows. It manages the daily operation efficiently.
 

Also Known As

Dell PowerEdge Rack Servers
Flex System Blade Servers, Flex System SN Series
 

Overview

 

Sample Customers

NxtGen Datacenter, Medien-Service Untermain (MSU), Exasol, IndigoVision, Dayco
Information Not Available
Find out what your peers are saying about Dell PowerEdge R-Series vs. Lenovo Flex System and other solutions. Updated: April 2026.
893,244 professionals have used our research since 2012.