Updated: May 12, 2017 Home » Computer and Internet Security » Download Antivirus Protection
For your information, Norton may not be the faster but it is still one of my favorite. With today’s computing power, processing consumption used by most antiviruses is not an issue. However, if you are on a very old and sluggish system, selecting an antivirus with the least taxing on the system is a must. Below is the complete list of some of the most popular antivirus and its usage on system resources. The table does not include detection rate and features. For those in the dark, some antivirus has a ‘gaming mode’ where it will reduce the resources required when you are playing Dota or Counter Strike.
See Also ➤ 10 Lightest Antivirus on Memory Usage During Idle and Scanning
| Memory Usage (MB) smaller better | Scan Speed (MB/s) bigger better | |
|---|---|---|
| Avast Antivirus Pro 9 | 6.6 | 20.0 |
| Panda Antivirus Pro 2015 | 9.8 | 16.4 |
| Norton Antivirus 2015 | 9.9 | 36.3 |
| BitDefender Antivirus Pro 2015 | 15.7 | 35.9 |
| Avira AntiVir Premium 13 | 22.9 | 35.7 |
| Kaspersky Antivirus 2015 | 23.0 | 34.4 |
| AVG Antivirus 2015 | 29.6 | 32.4 |
| Trend Titanium Antivirus 2015 | 42.2 | 27.2 |
| F-Secure Antivirus 2015 | 42.6 | 23.1 |
| McAfee Antivirus Plus 2015 | 53.2 | 27.9 |
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How to Control and Reduce Norton CPU Usage?
Is Your Free AV a System Hog? which antivirus?
High CPU and Memory Usage by ccSvcHst.exe *32?? how? caused by Norton internet security and 360
You can always attempt to use the GetSystemInfo tool and upload the results
Ekrn.exe High CPU Memory Usage
Which antivirus has the lowest CPU and memory usage for optimum security? I mean the one with the right balance?
ESET and AVAST but AVAST so much better!
Reduce CPU Usage
wuauclt.exe memory and CPU usage winlogon.exe
which is the best Performing in term of Speed and Memory Usage Antivirus
How to lower AV peronal memory consumption in windows 8?
Which Free Antivirus Won’t Slow Down My Computer?
What did you use to test it?
This site https://www.raymond.cc/blog/which-free-antivirus-is-the-lightest-on-system-memory-usage/2/ got rather different results. In those Avast seem the natural free choice for not hogging the memory while still being a decent antivirus. And you can turn of the ‘cloud’ in it which I prefer. Don’t like programs going out without me knowing it.
Sorry, my bad. I should have put in the source. It is via https://www.av-comparatives.org/
This article is kind of old.
AvastUI.exe = 28MB
AvastSvc.exe = 41MB
Where are you getting 6mb from?!
This information is not that useful. Memory used to load the program is not memory used while actively scanning or checking for updates. Each of these programs use and free up memory as needed. you can watch them in taskmanager use more memory when their cpu usage goes up. Either way all the programs use a moderate amount of memory even for low end old PCs.
Scan speed is not that important as most of the time it will be scanning on a schedule when the user is not at the keyboard. I try not to run anything while it’s scanning.
More useful would be how much memory and cpu does it eat when I’m at the PC doing my thing or when the computer is at idle. For example my cpu averages 4% /hr idling before I install Anti-Virus and jumps to 21% after protection is installed. I’m looking for something that uses less than 15%
WUT webroot secure anywhere should be first because it use your memory 4.7 mb.
Where’s the processor usage comparison?
When you’re looking for free and light antivirus, just stick with avast.
I have tried ALL of the antivirus out there, and trust me, avast is so much better.
Dr. Web is my second favorite, but it’s not free.