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Dell PowerEdge MX- Series vs Lenovo Flex System comparison

 

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
8.6
Reviews Sentiment
6.4
Number of Reviews
41
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 August 2026, in the Blade Servers category, the mindshare of Dell PowerEdge MX- Series is 8.6%, down from 16.9% compared to the previous year. The mindshare of Lenovo Flex System is 4.4%, 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 MX- Series8.6%
Lenovo Flex System4.4%
Other87.0%
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

"The density achieved by the M630 while maintaining good performance allowed us to cut our hardware footprint by more than half."
"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."
"The biggest advantage of PowerEdge is that it is cost-effective, and its performance and infrastructure are much better than other competitors like Lenovo and HP, with very good performance even when you are using it at one hundred percent load."
"The solution's most valuable features are centralized monitoring and management and the ease of upgrading firmware."
"Regarding technical support from Dell, I find them to be one of the best support providers in the industry right now."
"The iDRAC feature is most useful for server management in Dell, comparable to HP iLO."
"One of the best aspects of PowerEdge is that it provides a consolidated hardware infrastructure, allowing multiple servers in a simple ten-rack unit."
"The initial setup of Dell PowerEdge M is straightforward, and its ease of installation is a highlight."
"The stability and speed are always good. The processor is good and it's still working with our loads."
"One of the most valuable features of this solution is its ease of use."
"We use the solution as a compute model to run the compute load on servers."
"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 have found the solution to be quite stable."
"It comes at a good price. We didn't face any problems with this product."
"The product is very user-friendly and has many resources at the enterprise level."
"It's stable, it works well, and we have had no problem with it for a long time."
 

Cons

"Dell PowerEdge MX-Series is not a good solution for AI due to the lack of support for the expansion of GPUs; there is a solution, but it is not a useful one."
"I wanted to highlight that sometimes the patches from the firmware are not compatible with the hardware, which can crash the operating system and mess up the RAID configuration."
"The biggest challenge happens when you have compact boxes such as Dell PowerEdge MX- Series. Managing or maintaining the server ratio within a rack becomes jumbled up because per rack you get a limited power capacity."
"The initial capital investment for Dell PowerEdge MX- Series chassis and its corresponding high-bandwidth fabric switches is very steep."
"Dell support should be faster. Dell's technical support sometimes takes time, and there's a support gap issue."
"The only area for improvement is the price."
"I did not have any problem with the initial pricing or cost setup with Dell PowerEdge MX- Series, but I had some problems with ongoing maintenance and getting regular updates from Dell."
"I would like to have additional HPC and AI capabilities on general Dell PowerEdge servers."
"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."
"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 of the infrastructure."
"The solution could improve by providing more integration with other platforms."
"The price of the Lenovo Flex System could improve."
"The installation was not easy."
"I had some difficulties with the initial setup."
"The solution's firmware and driver upgrades are a bit difficult."
 

Pricing and Cost Advice

"If we would not have gone with the vendor we might have been charged unnecessarily for packages we did not need."
"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."
"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."
"It was budget friendly."
"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 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."
"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."
"The price is interesting. I am able to quote a client based on their needs and offer them either Lenovo or Dell."
"There is a one-off payment to buy the equipment and the support is purchased annually."
"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
15%
Financial Services Firm
15%
Manufacturing Company
8%
Construction Company
7%
Construction Company
16%
Manufacturing Company
12%
Financial Services Firm
12%
Outsourcing Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business19
Midsize Enterprise9
Large Enterprise19
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: August 2026.
910,454 professionals have used our research since 2012.