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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
8.6
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 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

"Regarding technical support from Dell, I find them to be one of the best support providers in the industry right now."
"The installation is easy."
"Using Dell PowerEdge MX- Series has helped reduce unplanned production downtime by approximately 60 to 70 percent."
"Using Dell PowerEdge MX- Series has helped reduce our total cost of ownership, with our organization seeing a total cost of ownership reduction ranging between thirty to fifty percent for a standard three to five-year lifecycle."
"It helps us to manage multiple chassis from a single website."
"The low cost and high density of the solution has allowed us to place more compute assets per data center rack and increase our virtual machine count."
"Dell PowerEdge MX- Series has impacted our organization in a very positive way, and there are many benefits to it."
"Dell PowerEdge MX- Series is highly scalable and highly stable."
"One of the most valuable features of this solution is its ease of use."
"The product is very user-friendly and has many resources at the enterprise level."
"Flex System's best features are its performance and stability."
"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 stability and speed are always good. The processor is good and it's still working with our loads."
"The functionality is reliable and requires minimal support."
"The most valuable feature of the Lenovo Flex System is the storage system."
 

Cons

"The only area for improvement is the price."
"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."
"In HP, there are some series of servers which are called partition servers. These use virtualization built-in on the server hardware. I am not seeing this feature in Dell."
"Technical support from Dell is not good. I rate it a zero out of five."
"There is no specific feedback on improvements directly from our usage."
"More interconnections with third party equipment and limited I/O selection."
"I have not noticed any specific improvements needed as most updates are done by the OEM over time."
"It requires time to transition to the new generation."
"The price of the Lenovo Flex System could improve."
"The installation was not easy."
"The solution could improve by providing more integration with other platforms."
"I had some difficulties with the initial setup."
"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 user interface needs improvement because they have an application from which we have to manage the whole system and all of the infrastructure."
"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 solution's firmware and driver upgrades are a bit difficult."
 

Pricing and Cost Advice

"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."
"It was budget friendly."
"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."
"The product is neither expensive nor cheap. It is manageable for medium enterprises as well."
"The solution's pricing is slightly higher."
"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."
"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."
"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 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."
"There is a one-off payment to buy the equipment and the support is purchased annually."
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Top Industries

By visitors reading reviews
Outsourcing Company
16%
Financial Services Firm
15%
Manufacturing Company
8%
Construction Company
7%
Construction Company
15%
Financial Services Firm
13%
Manufacturing Company
11%
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.
912,006 professionals have used our research since 2012.