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Dell PowerEdge MX- Series vs Lenovo Flex System comparison

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Comparison Buyer's Guide

Executive SummaryUpdated on Mar 8, 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 MX- Series
Ranking in Blade Servers
2nd
Average Rating
8.4
Reviews Sentiment
6.2
Number of Reviews
44
Ranking in other categories
No ranking in other categories
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 October 2026, in the Blade Servers category, the mindshare of Dell PowerEdge MX- Series is 8.2%, down from 14.7% compared to the previous year. The mindshare of Lenovo Flex System is 4.3%, up from 3.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Blade Servers Mindshare Distribution
ProductMindshare (%)
Dell PowerEdge MX- Series8.2%
Lenovo Flex System4.3%
Other87.5%
Blade Servers
 

Featured Reviews

reviewer2881110 - PeerSpot reviewer
Software Engineer at a tech vendor with 201-500 employees
Modern infrastructure has reduced our rack footprint and simplifies large-scale virtualization
No product is perfect, and there are improvements that can be done on Dell PowerEdge MX- Series. The first improvement is the complex matrix for firmware updates and patching. Managing the cycle for a modular chassis means managing alignment across multiple layers: the chassis management module, compute nodes including I/O, BIOS, and iDRAC, switch network OS such as SmartFabric OS, and the hypervisor driver.Upgrading firmware can feel challenging when an OS10 switch patch is out of sync with an iDRAC version and a VMware ESXi driver release, as it can trigger network instability or failed compliance checks. A simple, single-click, whole-stack update engine that completely guarantees baseline stability across switch OS, server BIOS, and hypervisor drivers without manual dependency checking would be beneficial. The second area for improvement is the high upfront cost and initial setup complexity. The initial capital expenditure for an MX7000 chassis, redundant management nodes, and fabric switching engines is steep compared to buying a few standalone 2U servers or rack servers. Additionally, initial configuration, particularly setting up SmartFabric services and inter-chassis stacking, has a steep learning curve. A lower barrier to entry price for smaller cities and a simplified deployment wizard for IT generalists who do not specialize in enterprise network fabrics would be improvements. The third improvement is the limited native GPU density for modern AI workloads. While composable PCIe fabric exists, running intensive AI training locally inside the chassis is restricted. Sleds designed with specialized cooling, specifically tailored to support high-wattage enterprise GPUs natively with the standard sled footprint, would be beneficial. Power and thermal management per rack is another area that can be improved. A fully populated MX7000 series loaded with high-wattage CPUs, dual switches, and NVMe drives consumes a significant amount of power in a compact 7U space. Racking three or four chassis in a single rack can typically exceed standard power density limits or require specialized rack power distribution units and high-CFM cooling airflow.
OZ
Head manager at a real estate/law firm with 1,001-5,000 employees
Efficient management with minimal support needs and ongoing production
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 It saves our time because it is stable. The stability is crucial as all operational servers rely on it, making it…

Quotes from Members

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

Pros

"Dell is a reliable solution that does not usually require major support or experience part failures within two to three years."
"The initial setup of Dell PowerEdge M is straightforward, and its ease of installation is a highlight."
"Dell PowerEdge MX- Series is highly scalable and highly stable."
"The most valuable features for Dell PowerEdge MX-Series include its reliability, scalability, and robust support options that help in our operational efficiency."
"It is easy to manage by an administrator and we can spend valuable time on other IT issues."
"Dell PowerEdge MX-Series has definitely helped to reduce unplanned production downtime because it gives us flexibility; our infrastructure design allows for load distribution in case one of the enclosures goes down."
"The initial setup is straightforward."
"Dell PowerEdge MX- Series addresses diverse organizational needs through its versatile capabilities, handling many different workloads, functioning as traditional servers, serving as standalone servers for backup archives, and supporting customers when they need to install VDI applications, which demonstrates the comprehensive benefits the solution brings to organizations."
"The functionality is reliable and requires minimal support."
"The product is very user-friendly and has many resources at the enterprise level."
"It comes at a good price. We didn't face any problems with this product."
"We are using Lenovo Flex System for our internal platform where we store our operating systems, Windows, Linux, and VMware, and then virtualize our machines."
"It's stable, it works well, and we have had no problem with it for a long time."
"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."
"The most valuable feature of the Lenovo Flex System is the storage system."
"The stability and speed are always good. The processor is good and it's still working with our loads."
 

Cons

"One area for improvement is the connectivity, specifically the backplate and switch connections."
"Dell PowerEdge M lacks GPU nodes and doesn't have a direct solution for GPUs."
"Dell support should be faster. Dell's technical support sometimes takes time, and there's a support gap issue."
"I suggest adding an additional network card within the blades, specifically for connectivity."
"The set up is complex."
"What we feel is lacking is the availability of some enterprise-level parts, as big products have some spare parts that are not easily available in the region."
"Because the costs have increased dramatically, some of those use cases may get turned down."
"It requires time to transition to the new generation."
"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."
"I had some difficulties with the initial setup."
"The solution could improve by providing more integration with other platforms."
"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 product could improve its integration capabilities."
"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 installation was not easy."
"The solution's firmware and driver upgrades are a bit difficult."
 

Pricing and Cost Advice

"I know we get three years basic, and the on-site licensing model for business seems fine. I wouldn't pay for a support plus or anything."
"The cost varies significantly depending on the server's configuration and can range from $10,000 to $60,000 for the same server line family."
"If we would not have gone with the vendor we might have been charged unnecessarily for packages we did not need."
"It was budget friendly."
"The product is budget-friendly. The initial cost for each server was around 10,000 euros. It's a standard price, not too high or too low."
"The solution's pricing is slightly higher."
"The product is neither expensive nor cheap. It is manageable for medium enterprises as well."
"Dell PowerEdge M price is comparable to other solutions but cheaper than IBM. However, the IBM solution is a higher grade solution whereas Dell PowerEdge M is a medium-level solution."
"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 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."
"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."
"We are just paying the operational cost, which is not much."
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Top Industries

By visitors reading reviews
Outsourcing Company
18%
Financial Services Firm
14%
Manufacturing Company
9%
Construction Company
7%
Construction Company
15%
Manufacturing Company
11%
Financial Services Firm
10%
Outsourcing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business20
Midsize Enterprise9
Large Enterprise21
By reviewers
Company SizeCount
Small Business3
Large Enterprise7
 

Questions from the Community

What is your experience regarding pricing and costs for Dell PowerEdge M?
Total cost of ownership depends on the purchase cost plus deployment cost and other things such as maintenance cost and upgrade cost. TCO in Dell PowerEdge MX- Series has shared infrastructure that...
What needs improvement with Dell PowerEdge M?
I don't think I could improve Dell PowerEdge MX- Series overall. I think they're naturally improving as time goes on. I would improve them by reducing the cost now with the change in the world, I s...
What is your primary use case for Dell PowerEdge M?
Dell PowerEdge MX- Series is used for corporate IT infrastructure, running Citrix for our corporate IT people, and using them for application components on the corporate side. In the OT worlds, we ...
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

No data available
Flex System Blade Servers, Flex System SN Series
 

Overview

 

Sample Customers

Newport City Homes, Neuroblastoma and Medulloblastoma Translational Research Consortium (NMTRC), Georgian College, AgreeYa Solutions, IIHT Cloud Solutions, Arizona State University, AudienceScience, University of the Incarnate Word (UIW), The Translational Genomics Research Institute (TGen), Holy Cross School
Information Not Available
Find out what your peers are saying about Dell PowerEdge MX- Series vs. Lenovo Flex System and other solutions. Updated: September 2026.
917,403 professionals have used our research since 2012.