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Dell PowerEdge R-Series vs Lenovo Flex System comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 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
2nd
Average Rating
9.0
Reviews Sentiment
7.0
Number of Reviews
307
Ranking in other categories
Converged Infrastructure (1st), Data Center Networking (3rd), 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 June 2026, in the Blade Servers category, the mindshare of Dell PowerEdge R-Series is 5.1%, up from 1.6% compared to the previous year. The mindshare of Lenovo Flex System is 4.5%, up from 3.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Blade Servers Mindshare Distribution
ProductMindshare (%)
Dell PowerEdge R-Series5.1%
Lenovo Flex System4.5%
Other90.4%
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

"PowerEdge Servers helped to reduce unplanned production downtime because of the configuration of our product, it is active-active. It has 99% high reliability."
"The most valuable feature, when I compare Dell PowerEdge Rack Servers with other brands available, is the price versus performance, as I get more for what I pay, and mostly, we use this for our CAD workloads."
"The reliability and the execution of the necessary assignments are valuable."
"Technical support is very good."
"The solution is very strong and reliable."
"I would estimate we save two to four hours a week, depending on what's happening, such as if we need to spin up a new server, which would contribute to more time if done the old way."
"Reliability is important for us. They are reliable, and the service is very good."
"I would recommend Dell PowerEdge Rack Servers if you want reliability, sustainability, and greater performance."
"The functionality is reliable and requires minimal support."
"It comes at a good price. We didn't face any problems with this product."
"The most valuable feature of the Lenovo Flex System is the storage system."
"I'd recommend Flex System to others as it's much better than any other product we've had and advise that they use XClarity for system management."
"It's stable, it works well, and we have had no problem with it for a long time."
"The initial setup is straightforward."
"Flex System's best features are its performance and stability."
"We use the solution as a compute model to run the compute load on servers."
 

Cons

"Configuring the Dell was a bit more complicated than just using the HP since the HP was really straightforward about everything."
"The dispatch services are outsourced to small and medium companies, so we don't get consistent support."
"To improve Dell PowerEdge Rack Servers, I would like to see the return of the dedicated Hyper-V cluster storage product line that was discontinued, which I found to be a really nice product."
"Where it would take an hour to set up an HPE server, for example, it took almost two working days for the first Dell PowerEdge to get it running."
"Dell PowerEdge R-Series could improve by focusing the servers to optimize their performance for Kubernetes clusters or something similar might be beneficial."
"I'd like to take the complexities out of all the different tools that surround it, like OpenManage."
"Reduced cabling and improved power consumption management would be beneficial improvements."
"PowerEdge could have more configuration options, such as the ability to combine different CPUs, memory volumes, data storage, and memory. The new Intel-based ones are a bit power-hungry."
"The price of the Lenovo Flex System could improve."
"Continuing the production of this product is necessary. It is currently out of support, and we are seeking support from other sources besides Lenovo."
"The user interface needs improvement because they have an application from which we have to manage the whole system and all of the infrastructure."
"The solution's firmware and driver upgrades are a bit difficult."
"The installation was not easy."
"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."
"The product could improve its integration capabilities."
"Flex System's integration with the XClarity Management System could be improved."
 

Pricing and Cost Advice

"The cost structure associated with Dell PowerEdge Rack Servers aligns closely with the prevailing norms established within the information technology hardware sector."
"The solution’s pricing is competitive with other products."
"I'd like them to be cheaper, but that's not the world we live in and that's not where the pound is at."
"One of the clients has been offered a price of $18,000 instead of the regular price of around $25,000."
"I don't know about the product's licensing part. Price-wise, it is an okay product. I believe that the cheaper the better, but I think that the product's price is okay."
"The price of Dell EMC PowerEdge Rack Servers is reasonable compared to other solutions."
"Dell is somewhat more expensive than HPE."
"There is room for improvement in making it more cost-effective."
"We are just paying the operational cost, which is not much."
"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."
"There is a one-off payment to buy the equipment and the support is purchased annually."
"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."
"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."
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Top Industries

By visitors reading reviews
Manufacturing Company
12%
Financial Services Firm
8%
Computer Software Company
8%
Construction Company
7%
Construction Company
16%
Manufacturing Company
12%
Financial Services Firm
12%
Computer Software Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business110
Midsize Enterprise66
Large Enterprise128
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 needs improvement with Dell EMC PowerEdge Rack Servers?
I think Dell PowerEdge R-Series can support more storage capacity, which would be great. Most other OEMs are trying to ensure you have a one-stop shop for just one server where you could get a whol...
What is your primary use case for Dell EMC PowerEdge Rack Servers?
My main use case for Dell PowerEdge R-Series is to use it as standalone servers but also as part of some clusters. I have some OpenStack private cloud deployed on them and some Ceph software-define...
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: June 2026.
902,456 professionals have used our research since 2012.