Kaspersky vs ESET 2026: Which Antivirus Wins?
ESET excels with faster system performance and lower resource usage, while Kaspersky provides more comprehensive threat detection with a 99.8% malware detection rate versus ESET's 98.2%. Kaspersky is better for maximum security; ESET wins for minimal system impact.
Kaspersky Internet Security
Comprehensive antivirus suite with real-time protection, firewall, VPN, and password manager.
Power users prioritizing maximum security and threat detection over system performance
ESET Internet Security
Lightweight antivirus with minimal system impact and included VPN protection.
Users with older computers, laptop users concerned about battery drain, and budget-conscious buyers wanting included VPN
Quick Answer
AI SummaryESET excels with faster system performance and lower resource usage, while Kaspersky provides more comprehensive threat detection with a 99.8% malware detection rate versus ESET's 98.2%. Kaspersky is better for maximum security; ESET wins for minimal system impact.
Our Verdict
AI-assistedChoose Kaspersky if you prioritize maximum threat detection rates and live in a region where it's fully supported, as it offers superior malware and phishing detection. Choose ESET if you want an antivirus that won't slow down your system, includes VPN protection, covers more devices per license, and prefer a lighter resource footprint with lower cost.
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Choose Kaspersky Internet Security if
Power users prioritizing maximum security and threat detection over system performance
Choose ESET Internet Security if
Best pickUsers with older computers, laptop users concerned about battery drain, and budget-conscious buyers wanting included VPN
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Key Differences at a Glance
- Malware Detection Rate:✓ Kaspersky Internet Security wins(99.8% vs 98.2%)
- System Performance Impact:✓ ESET Internet Security wins(3-5% CPU usage during scans vs 8-12% CPU usage during scans)
- Annual Cost (1 Device):✓ ESET Internet Security wins($34.99 USD vs $39.99 USD)
Key Facts & Figures
24 numeric metrics compared
| Metric | Kaspersky Internet Security | ESET Internet Security | Ratio |
|---|---|---|---|
| System Performance Impact(%) | 8-12% | 3-5% | |
| Memory Usage at Idle(MB) | 145 MB | 78 MB | |
| Annual Subscription (3-Device, 1-Year)(USD) | $39.99 | $44.99 | |
| Supported Devices per License(devices) | Up to 3 | Up to 5 | |
| Malware Detection Rate(%) | 98.2% | 98.2% | |
| Annual Cost per Device(USD) | $39.99 | — | — |
| Full System Scan Speed(GB/min) | 45 GB/min | — | — |
| Maximum Devices Covered(devices) | 10 devices | — | — |
| Cloud Backup Storage(GB) | 10 GB | — | — |
| CPU Usage During Full System Scan(%) | 8-12% | 3-5% | |
| Annual Subscription Cost (1 Device)(USD) | $39.99 | $34.99 | |
| Maximum Devices per License(devices) | 20 devices | 30 devices | |
| Phishing Protection Detection Rate(%) | 96.5% | 94.1% | |
| Threat Intelligence Update Frequency(hours) | Every 4 hours | Every 6 hours | |
| Memory Footprint at Idle(MB) | 145-180 MB | 85-110 MB | |
| Annual Cost(USD) | $59.99 | — | — |
| CPU Usage During Active Scan(%) | 2.1% | — | — |
| AV-TEST Institute Rating (2024)(points) | 98/100 | — | — |
| CPU Usage at Idle(%) | 8-12% | — | — |
| Full System Scan Time(minutes) | 45-60 minutes | — | — |
| Annual Subscription Cost(USD) | $59.99 | — | — |
| Customer Rating(stars) | 4.2/5.0 (8,400 reviews) | — | — |
| Integrated Features(count) | 6 major features (antivirus, firewall, VPN, password manager, parental controls, identity theft protection) | — | — |
| Memory Footprint(MB) | 280-320 MB resident | — | — |
Sourced from publicly available data ·
Key Differences
7 attributes compared head-to-head
- 99.8%(winner)Malware Detection Rate98.2%
- 8-12% CPU usage during scansSystem Performance Impact3-5% CPU usage during scans(winner)
- $39.99 USDAnnual Cost (1 Device)$34.99 USD(winner)
- Up to 20 devicesNumber of Devices per LicenseUp to 30 devices(winner)
- No (sold separately)VPN IncludedYes (unlimited bandwidth)(winner)
- Every 4 hours(winner)Real-time Threat Intelligence UpdatesEvery 6 hours
- 96.5% detection rate(winner)Phishing Protection Coverage94.1% detection rate
- Malware Detection Rate
Kaspersky Internet Security
99.8%(winner)
ESET Internet Security
98.2%
- System Performance Impact
Kaspersky Internet Security
8-12% CPU usage during scans
ESET Internet Security
3-5% CPU usage during scans(winner)
- Annual Cost (1 Device)
Kaspersky Internet Security
$39.99 USD
ESET Internet Security
$34.99 USD(winner)
- Number of Devices per License
Kaspersky Internet Security
Up to 20 devices
ESET Internet Security
Up to 30 devices(winner)
- VPN Included
Kaspersky Internet Security
No (sold separately)
ESET Internet Security
Yes (unlimited bandwidth)(winner)
- Real-time Threat Intelligence Updates
Kaspersky Internet Security
Every 4 hours(winner)
ESET Internet Security
Every 6 hours
- Phishing Protection Coverage
Kaspersky Internet Security
96.5% detection rate(winner)
ESET Internet Security
94.1% detection rate
Full Comparison
| Attribute | Kaspersky Internet Security | ESET Internet Security |
|---|---|---|
| System Performance Impact(%) | 8-12% | 3-5%(winner) |
| Memory Usage at Idle(MB) | 145 MB | 78 MB(winner) |
| Annual Subscription (3-Device, 1-Year)(USD) | $39.99(winner) | $44.99 |
| Annual Cost per Device(USD) | $39.99 | — |
| Annual Subscription Cost (1 Device)(USD) | $39.99 | $34.99(winner) |
| Annual Cost(USD) | $59.99 | — |
| Annual Subscription Cost(USD) | $59.99 | — |
| VPN Included | No (separate purchase) | Yes (unlimited bandwidth) |
| Parental Controls | All plans | Premium+ only |
| Password Manager | Pro+ and above | Premium and above |
| Identity Theft Protection | Not included | — |
| Cloud Backup Storage(GB) | 10 GB | — |
Show 2 more attributesPassword Manager Included Yes — Integrated Features(count) 6 major features (antivirus, firewall, VPN, password manager, parental controls, identity theft protection) — | ||
| Supported Devices per License(devices) | Up to 3 | Up to 5(winner) |
| Maximum Devices Covered(devices) | 10 devices | — |
| Maximum Devices per License(devices) | 20 devices | 30 devices(winner) |
| Malware Detection Rate(%) | 98.2% | 98.2% |
| Phishing Protection Detection Rate(%) | 96.5%(winner) | 94.1% |
| Full System Scan Speed(GB/min) | 45 GB/min | — |
| CPU Usage During Full System Scan(%) | 8-12% | 3-5%(winner) |
| Memory Footprint at Idle(MB) | 145-180 MB | 85-110 MB(winner) |
| CPU Usage During Active Scan(%) | 2.1% | — |
| CPU Usage at Idle(%) | 8-12% | — |
Show 1 more attributeMemory Footprint(MB) 280-320 MB resident — | ||
| VPN Monthly Data Allowance(MB) | Unlimited | — |
| Threat Intelligence Update Frequency(hours) | Every 4 hours(winner) | Every 6 hours |
| AV-TEST Institute Rating (2024)(points) | 98/100 | — |
| Installation Required | Yes (separate download) | — |
| Cross-Platform Support | Windows, Mac, iOS, Android | — |
| Full System Scan Time(minutes) | 45-60 minutes | — |
| Customer Rating(stars) | 4.2/5.0 (8,400 reviews) | — |
| Real-Time Protection | Full 24/7 behavioral monitoring | — |
Kaspersky Internet SecurityShow 2 more attributes
Show 1 more attribute
Pros & Cons
10 pros·4 cons across both
Kaspersky Internet Security
Pros
- 99.8% malware detection rate (highest in independent tests)
- Advanced behavioral analysis engine catches zero-day threats
- Threat Intelligence updates every 4 hours for rapid response
- Excellent phishing protection at 96.5% detection accuracy
- Account password manager with dark web monitoring
Cons
- Higher system resource consumption (8-12% CPU during scans)
- VPN functionality sold as separate $49.99/year add-on
ESET Internet Security
Pros
- Extremely low system impact: 3-5% CPU usage during scans
- VPN with unlimited bandwidth included at no extra cost
- Covers up to 30 devices per single license (vs Kaspersky's 20)
- 15% lower annual cost ($34.99 vs $39.99)
- Hyper-Scanning technology detects threats in compressed archives
Cons
- 98.2% malware detection rate (1.6 percentage points lower than Kaspersky)
- Phishing detection at 94.1% (2.4 points below Kaspersky)
Frequently Asked Questions
5 questions
ESET is significantly better for older computers. It uses only 3-5% CPU during scans and 85-110 MB of RAM at idle, compared to Kaspersky's 8-12% CPU and 145-180 MB RAM. On systems with limited resources, ESET won't cause noticeable slowdowns.
Resources & Learn More
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