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IBM Security QRadar vs LogRhythm SIEM vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

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

ROI

Sentiment score
6.4
IBM Security QRadar delivers cost-effective, rapid deployment, reducing incident response times and employee needs, enhancing organizational resilience.
Sentiment score
4.5
LogRhythm SIEM enhances security, efficiency, and compliance, offering rapid threat detection and cost-effectiveness, especially for medium-sized organizations.
Sentiment score
6.1
Splunk Enterprise Security offers time efficiency, automation, and ROI benefits, with strengths in integration, real-time detection, and user interface.
With SOAR, the workflow takes one minute or less to complete the analysis.
Cyber Security Architects at VaporVM
AWS gives the chance to implement a solution out of the box with use cases that are already in IBM Security QRadar.
Strategic Account Executive at a computer software company with 51-200 employees
Investing this amount was very much worth it for my organization.
Information Security Analyst at Banglalink
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
DevOps&Cloud Engineer Mentee at CertDirectory.io
We couldn't calculate what would have been the cost if they had actually gotten compromised; however, they were in the process, so every investment was returned immediately.
Business Development Manager at Axians Germany
On average, my SecOps team takes probably at least a quarter of the time, if not more, to remediate security incidents with Splunk Enterprise Security compared to our previous solution.
IT Orchestration Architect at Penn State University
 

Customer Service

Sentiment score
6.0
IBM Security QRadar support quality varies, with inconsistent service; knowledgeable agents appreciated but response times and expertise are concerns.
Sentiment score
5.5
LogRhythm SIEM's support is praised for efficiency and expertise, though some users note occasional variability in service quality.
Sentiment score
6.2
Splunk Enterprise Security support is mixed, with responsiveness varying based on issue priority and available documentation.
They assist with advanced issues, such as hardware or other problems, that are not part of standard operations.
Network and Security Architect at Deutsche Telekom
Support needs to understand the issue first, then escalate it to the engineering team.
Cyber Security Architects at VaporVM
The support is really good; for instance, if a critical ticket is submitted, you will get paged right away as it gets logged, and their analyst will look into it, letting you know as soon as possible so you can work on it.
Cyber Security Intern at a retailer with 1,001-5,000 employees
The technical support is good; we have a separate portal for partners, and since we are paying for the service, they provide a response timeframe based on severity—critical issues are addressed within four hours, medium issues within one day, and non-urgent issues may take a couple of days.
Cyber Security Engineer at Diyar United Company
LogRhythm SIEM is quite complex, but that complexity allows us to specifically tailor a solution to the customer while some others are not as flexible.
Engineer Information Security at N-Able (Pvt) Ltd
Customer support is very helpful and effectively solves my problems.
Product Development - Security Solutions Manager at Aplikanusa Lintasarta
We have paid for Splunk support, and we’re not on the free tier hoping for assistance; we are a significant customer and invest a lot in this service.
Senior System Administrator at a tech services company with 5,001-10,000 employees
I have had nothing but good experiences with Splunk support, receiving timely and helpful replies.
Cyber Security Associate at SAP
We've had great customer success managers who have helped us navigate scaling from 600 gigs to 30 terabytes.
Principal Engineer at Aviatrix
 

Scalability Issues

Sentiment score
7.2
IBM Security QRadar is highly scalable, easily integrates hardware, and efficiently manages extensive networks for cloud or on-premises deployments.
Sentiment score
6.6
LogRhythm SIEM excels in scalability and adaptability for growth, despite hardware and licensing challenges in high-volume environments.
Sentiment score
7.3
Splunk Enterprise Security offers scalable solutions, accommodating growth and customization, though initial setup and cost management present challenges.
For EPS license, if you increase or exceed the EPS license, you cannot receive events.
Cyber Security Architects at VaporVM
LogRhythm SIEM is highly scalable as it has modular components allowing me to expand storage, indexing, or other resources as needed.
Product Development - Security Solutions Manager at Aplikanusa Lintasarta
LogRhythm SIEM is scalable; it can handle about 200 or 500 devices without much difference.
Cyber Security Engineer at Diyar United Company
The scalability of LogRhythm SIEM is good enough, warranting an eight out of ten rating.
Security Engineer at Granicus Inc.
We currently rely on disaster recovery and backup recovery, which takes time to recover, during which you're basically blind, so I'm pushing my leadership team to switch over to a clustering environment for constant availability.
IT Security Engineer at a financial services firm with 201-500 employees
It is one of the things that separates it from other tooling, and if not, it is the most scalable solution out there.
Systems Development Engineer at a tech vendor with 10,001+ employees
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
CTO at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
7.5
IBM QRadar is seen as reliable, with stability dependent on proper configuration, version updates, and sufficient hardware resources.
Sentiment score
5.0
LogRhythm SIEM is stable and resilient, though some experience hardware issues and setup challenges under high data volumes.
Sentiment score
7.6
Splunk Enterprise Security is praised for stability and reliability, despite minor issues in complex or on-premises configurations.
On cloud, you don't see any disconnections or instability.
SOC Engineer at a outsourcing company with 10,001+ employees
I think QRadar is stable and currently satisfies my needs.
Architect of Cybersecurity at ASSIST - Software Services
The product has been stable so far.
Information Security Analyst at Banglalink
The platform needs regular updates to fix problems encountered with each quarterly patch and version release.
Product Development - Security Solutions Manager at Aplikanusa Lintasarta
LogRhythm SIEM still needs improvement regarding stability, particularly in environments with heavy data consumption.
Security Engineer at Granicus Inc.
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk has been very reliable and very consistent.
Principal Engineer at Aviatrix
We need more SMEs, and there is no mechanism to tell us about indexer or search head issues.
Senior Manager at Bank of America
 

Room For Improvement

IBM Security QRadar needs UI improvements, better integration, faster support, enhanced features, and competitive pricing to address user concerns.
LogRhythm SIEM needs improved integration, customization, performance, usability, better support, and enhanced documentation for optimal user experience.
Users seek improved UI, search speed, AI, better documentation, cost efficiency, and enhanced integration for Splunk Enterprise Security.
We receive logs from different types of devices and need a way to correlate them effectively.
Network and Security Architect at Deutsche Telekom
If AI-related support can suggest rules and integrate with existing security devices like MD, IPS, this SIM can create more relevant rules.
Information Security Analyst at Banglalink
IBM Security QRadar does not support Canvas, so we had to create custom scripts and workarounds to pull logs from Canvas.
Cyber Security Architects at VaporVM
I have noticed some problems with parsing errors, event mismatches, and data mismatching, so ensuring accurate parsing and continuous improvement according to device updates are my basic expectations as a detection engineer.
Cyber Security Engineer at Diyar United Company
There is currently no way to determine how much data is being consumed in terms of gigabytes, terabytes, or petabytes from particular devices or environments.
Security Engineer at Granicus Inc.
If LogRhythm SIEM could make a lightweight version of their solution, that would be quite competitive because some of my customers have a very large need but refuse to go with LogRhythm SIEM due to its complexity and high resource intensity.
Engineer Information Security at N-Able (Pvt) Ltd
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Resident Consultant (Security Analyst) at helpag
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
Security & Risk Analyst at a computer software company with 1,001-5,000 employees
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
Security Consultant at Matiq
 

Setup Cost

IBM QRadar is costly but efficient, flexible in licensing, negotiable, and ideal for large enterprises over smaller ones.
LogRhythm SIEM offers competitive, transparent pricing suitable for medium to large businesses, with high initial setup costs.
Splunk Enterprise Security is costly but offers robust features and analytics, though pricing complexity challenges smaller organizations.
Splunk is more expensive than IBM Security QRadar.
Cyber Security Architects at VaporVM
It was costly mainly because of the value you can get right now compared to other solutions.
CTO at Sabyk
It depends on how much you want to spend.
Strategic Account Executive at a computer software company with 51-200 employees
The license cost is around $10 per MPS.
Product Development - Security Solutions Manager at Aplikanusa Lintasarta
I find LogRhythm SIEM affordable, as it is a bit less costly than QRadar.
Cyber Security Engineer at Diyar United Company
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
CTO at a tech vendor with 10,001+ employees
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
System Engineer - Security Presales at Raya Integration
I find it to be affordable, which is why every industry uses it.
Vice President Research And Development at OSINT Ambition
 

Valuable Features

IBM Security QRadar is scalable and user-friendly, excelling in threat detection, event analysis, and third-party integration for large operations.
LogRhythm SIEM offers AI-powered features, seamless integration, and user-friendly dashboards for enhanced security and operational efficiency.
Splunk Enterprise Security offers robust threat detection, seamless integration, and user-friendly features for efficient security operations and data analysis.
Recently, I faced an incident, a cyber incident, and it was detected in real time.
Information Security Analyst at Banglalink
IBM Security QRadar gives the opportunity to improve the time to market of the releases with a great evaluation of cybersecurity breaches.
Strategic Account Executive at a computer software company with 51-200 employees
Compared to ArcSight, Splunk, or any other SIEM tools where you need their processing language such as structured query language, SPL, and in Sentinel there is KQL query languages, IBM Security QRadar doesn't require reliance on query languages.
SOC Engineer at a outsourcing company with 10,001+ employees
The seamless integration for case management, along with a user-friendly dashboard user interface, makes tasks like threat hunting more efficient.
Product Development - Security Solutions Manager at Aplikanusa Lintasarta
We have enough budget for cloud deployment, but we choose to keep it on-prem to ensure data privacy; cyberattacks are a concern, but data privacy is the foremost priority due to sensitive government information.
Cyber Security Engineer at Diyar United Company
This helps SOC analysts significantly as they can monitor all log sources through a dashboard, quickly identifying which sources haven't reported within their specified timeframes.
Security Engineer at Granicus Inc.
This capability is useful for performance monitoring and issue identification.
Staff Performance Engineer at ServiceNow
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
Specialist-Infrastructure Opertions at Allianz Technology
 

Mindshare comparison

As of June 2026, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Security QRadar is 5.3%, down from 8.2% compared to the previous year. The mindshare of LogRhythm SIEM is 2.5%, down from 3.2% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.3%, down from 9.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Splunk Enterprise Security7.3%
IBM Security QRadar5.3%
LogRhythm SIEM2.5%
Other84.9%
Security Information and Event Management (SIEM)
 

Q&A Highlights

AS
Community Manager at PeerSpot (formerly IT Central Station)
May 07, 2015
 

Featured Reviews

HarshBhardiya - PeerSpot reviewer
SOC Engineer at a outsourcing company with 10,001+ employees
Have managed daily asset and alert monitoring effectively but have encountered limitations with manual processes and interface usability
It's still very manual and doesn't work on its own. It's still in an early stage and not on par where we can consider it a really successful detection system. The accuracy is not there. The UI could be better when compared to Sentinels where we can use flags and tagging. It could be much more user-friendly. IBM Security QRadar has all features and is fully competitive with other SIEM tools, but when it comes to user-friendliness, a new user takes time to get used to it. More intuitive, user-friendly interfaces and more helpful documentation would be beneficial. The query searching and data fetching could be faster. In large to very large organizations with around 5,000 or 6,000 assets or beyond, even with proper configurations and RAM and hardware backing up, the query is fairly slow.
SumitKumar20 - PeerSpot reviewer
Security Engineer at Granicus Inc.
Tool consistently aids in effective threat detection and monitoring but could benefit from improved log source management and resource optimization
One major area for improvement in LogRhythm SIEM is the lack of volume measurement capability in terms of storage. There is currently no way to determine how much data is being consumed in terms of gigabytes, terabytes, or petabytes from particular devices or environments. This information is crucial for planning future storage needs and scalability. The system monitor (collector) agent has issues with resource consumption. Even when not actively collecting data, the agent continues to consume significant CPU and memory resources, which can be particularly problematic for small business environments with limited resources. LogRhythm SIEM could improve by adding more default device support. While they have good default settings for devices such as Palo Alto firewalls, custom log sources often require extensive work. Increasing the number of supported devices with built-in policies and functionality would reduce the need for custom work. Competitive SIEM tools often provide more comprehensive coverage for various devices and vendors.
Sathis-Kumar - PeerSpot reviewer
Senior Manager at Bank of America
Helps us detect cyber threats quickly and integrate multiple feeds effectively
Overall, the product is good, but when it comes to some infrastructure issues, we have to dig into more logs. There is no straightforward indication of an issue. Health check kind of dashboards are not available. More AI would help us, and more optimization, since security products run more queries. The AI module could suggest solutions, optimizing queries or workload balancing. If the product itself advises on running queries during peak times, it would be similar to what ChatGPT currently offers. We see quite a few issues on stability. Even last week, we faced something, and identifying bottlenecks is not easy. We need more SMEs, and there is no mechanism to tell us about indexer or search head issues. Self-monitoring dashboards could be beneficial. The technical support still requires more improvement. Often, primary support takes a lot of time and forwards most solutions to the engineering side. The primary support team has very limited knowledge to provide.
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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Jun 28, 2015
Qradar vs. ArcSight
Continuing with the SIEM posts we have done at Infosecnirvana, this post is a Head to head comparison of the two Industry leading SIEM products in the market – HP ArcSight and IBM QRadar Both the products have consistently been in the Gartner Leaders Quadrant. Both HP and IBM took over niche SIEM…
 

Answers from the Community

AS
Community Manager at PeerSpot (formerly IT Central Station)
May 7, 2015
May 7, 2015
Hello , As someone who worked with Splunk, Arcsight and Qradar. I am sorry but you cant compare between those two . IBM QRADAR works great with 100 eps and with 100000 eps. IBM Qradar analyze not only logs but Traffic, Policey's, Vulnerabilities, OSINT Data and integrates them all into a single quilty event which made the analysis factor and easter Risk management Risk assessment. Even in an SM...
2 out of 6 answers
it_user123231 - PeerSpot reviewer
Works at a tech company with 51-200 employees
Jun 25, 2014
Its is now an easy and clear answer. It depends on the environment, the integration needed, and the staff expertise. IBM is usually a better solution for large/very large installations and integration. But it requires much more staff and skills. But for smaller environments Splunk and LogRhytm is better. McAfee is correctly rated against others. So the answer is YES/AGREE for large installations. And NO/DISAGREE for smaller ones.
it_user114555 - PeerSpot reviewer
Business Development Manager with 501-1,000 employees
Jun 25, 2014
Hi, I disgree for SME installation since Q1 is usually on a large scale installation. While expertise on the product is still needed including integration with other security platforms. Splunk/LogRythm is good for Network correlation only not focusing much on the security area. McAfee is ok for both SME and Enterprise whilst expertise should also be considered as they have an easy and available tool for integration with their ticketing system, IPS, and AV. Hope this helps. Cheers, Lilet
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
10%
Construction Company
8%
Manufacturing Company
8%
Construction Company
12%
Financial Services Firm
9%
Manufacturing Company
7%
Computer Software Company
7%
Financial Services Firm
14%
Manufacturing Company
9%
Computer Software Company
8%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business92
Midsize Enterprise39
Large Enterprise107
By reviewers
Company SizeCount
Small Business38
Midsize Enterprise39
Large Enterprise83
By reviewers
Company SizeCount
Small Business125
Midsize Enterprise58
Large Enterprise277
 

Questions from the Community

What are the biggest differences between Securonix UEBA, Exabeam, and IBM QRadar?
It mostly depends on your use-cases and environment. Exabeam and Securonix have a stronger UEBA feature set, friendli...
What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is a...
What is your experience regarding pricing and costs for IBM Security QRadar?
Pricing and the license of EPS were managed by the governance team. I was not responsible for managing those. I was s...
What is the difference between log management and SIEM?
Rony, Daniel's answer is right on the money. There are many solutions for each in the market, a lot depends upon you...
What needs improvement with LogRhythm NextGen SIEM?
LogRhythm SIEM could learn from Wazuh, as Wazuh has a built-in mechanism that allows you to write custom scripting an...
What is your experience regarding pricing and costs for LogRhythm SIEM?
I find LogRhythm SIEM affordable, as it is a bit less costly than QRadar, although I have not been involved in negoti...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingest...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitor...
What needs improvement with Splunk?
Complex Setup and Configuration ------------------------------- In my personal opinion, the initial setup and configu...
 

Also Known As

IBM QRadar, QRadar SIEM, QRadar UBA, QRadar on Cloud, IBM QRadar Advisor with Watson
LogRhythm NextGen SIEM, LogRhythm, LogRhythm Threat Lifecycle Management, LogRhythm TLM
No data available
 

Overview

 

Sample Customers

Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
Macy's, NASA, Fujitsu, US Air Force, EY, Abbott, HD Supply, SAB Miller, UCLA, Raytheon, Amtrak, Cargill
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about Splunk, IBM, Wazuh and others in Security Information and Event Management (SIEM). Updated: May 2026.
900,125 professionals have used our research since 2012.