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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
1st
Average Rating
8.4
Reviews Sentiment
6.3
Number of Reviews
43
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 September 2026, in the Blade Servers category, the mindshare of Dell PowerEdge MX- Series is 8.4%, down from 15.3% compared to the previous year. The mindshare of Lenovo Flex System is 4.4%, 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- Series8.4%
Lenovo Flex System4.4%
Other87.2%
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.
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

"What I like about Dell PowerEdge MX-Series is the whole integration, where you do not have a lot of cables, which is a strong point compared to others on the market."
"It runs smoothly and supports mission-critical systems."
"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 biggest advantage of Dell PowerEdge MX- Series is that its availability is very high, as we did not face any issue during these four years and the uptime was more than 99.8%, so the customer is very happy with this product."
"Dell PowerEdge MX- Series has positively impacted my organization by being the backbone, and I am the gatekeeper for monitoring and troubleshooting, and this product makes my life easy by not giving me any downtime and working up to the mark."
"I have compared Dell EMC to other solutions and have found it to be good. The SAN and LAN traffic, manageability, and upgradability are all good."
"Using Dell PowerEdge MX- Series has helped reduce unplanned production downtime by approximately 60 to 70 percent."
"PowerEdge M allows me to manage all servers and blades from one admin console."
"One of the most valuable features of this solution is its ease of use."
"The functionality is reliable and requires minimal support."
"The product is very user-friendly and has many resources at the enterprise level."
"The stability and speed are always good. The processor is good and it's still working with our loads."
"Flex System's best features are its performance and stability."
"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."
"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 initial setup is straightforward."
 

Cons

"In terms of improvement, it should also offer a hyper-converged option."
"Because the costs have increased dramatically, some of those use cases may get turned down."
"The initial capital investment for Dell PowerEdge MX- Series chassis and its corresponding high-bandwidth fabric switches is very steep."
"Compared to other solutions, this blade server requires more stability."
"The price of Dell PowerEdge MX- Series is high compared with all of these alternatives."
"Improvements are required in Dell PowerEdge MX- Series. The biggest drawback is its higher upfront cost and complexity."
"One area for improvement is VLAN configuration."
"Technical support from Dell is not good. I rate it a zero out of five."
"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."
"The installation was not easy."
"The product could improve its integration capabilities."
"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 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."
"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

"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."
"The product is neither expensive nor cheap. It is manageable for medium enterprises as well."
"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 pricing of PowerEdge Next is higher than it was before."
"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."
"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."
"It was budget friendly."
"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."
"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."
"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
Outsourcing Company
18%
Financial Services Firm
15%
Manufacturing Company
8%
Construction Company
7%
Construction Company
15%
Financial Services Firm
12%
Manufacturing Company
11%
Outsourcing Company
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise9
Large Enterprise21
By reviewers
Company SizeCount
Small Business3
Large Enterprise7
 

Questions from the Community

What do you like most about Dell PowerEdge M?
The best feature is the idrac tools, which allows me to manage/config the platform from the Linux level.
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?
For the time being, I do not see any particular weaknesses or room for improvement for Dell PowerEdge MX- Series; it's working perfectly fine with us with two environments, one for Citrix and one f...
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.
913,806 professionals have used our research since 2012.