
The Bottom line
After the last version's radical new interface that brought this security stalwart into a visual comparison with its competitors, Avast looks to the future with version 6's edgy improvements.
Review
Avast made great strides in its previous update. Version 5 set the stage for the modern, massively popular, and free security suite with a new interface that ditched a quirky, late-'90s jukebox style for a more polished look. Easier to navigate, it also became easier to add new features.
Make no mistake; Avast 6 adds features both big and small. Some that had previously only been available to paid upgrade users are now free for all versions, and newer features have been seamlessly added to the interface experience. If you're familiar with Avast 5, upgrading to Avast 6 won't be that big of a leap.
Performance
As far as Avast's impact on system performance goes, in a real-world test Avast completed its scans in a timely yet not blazingly fast manner. A Quick Scan took about 20 minutes, and the Full Scan took 59 minutes. RAM usage was surprisingly light, with Avast 6 only eating up about 16MB when running a scan.
As you can see in the chart below, CNET Labs benchmarked Avast 6 as having a moderate impact on system performance. It wasn't the overall best suite we tested, but the three versions of Avast did perform better than average in every category execpt one.
There were some notable areas where Avast did well. Avast had a minimal impact on startup time, with Avast Internet Security 6 adding 6.25 seconds, Avast Pro Antivirus 6 adding 5.76 seconds, and Avast Free Antivirus 6 slowing down the boot cycle by around five and a half seconds. All three posted a tiny impact on system shutdown, around 1.3 seconds slower than an unprotected computer. Scan times as well were competitive, slower than AVG, Trend Micro, and Panda, but faster than most competitors including Microsoft Security Essentials, Norton, and Ad-Aware. Also, Avast Pro Antivirus posted the best Cinebench score we recorded.
Avast's one point of weakness in the lab was its MS Office decoding test performance, where it was slightly slower than average but by no means the slowest suite tested.
| Security Program | Boot time | Shutdown time | Scan time | MS Office performance | iTunes decoding | Media multitasking | Cinebench |
|---|---|---|---|---|---|---|---|
| Unprotected system | 42.5 | 11.28 | n/a | 917 | 180 | 780 | 4795 |
| Protected system (average) | 50.07 | 15.00 | 988.96 | 1,047.19 | 200.19 | 832.69 | 4,755.73 |
| Avast Free Antivirus 6 | 47.9 | 12.4 | 697 | 1053 | 199 | 798 | 4742 |
| Avast Pro Antivirus 6 | 48.21 | 12.5 | 665 | 1083 | 199 | 798 | 4793 |
| Avast Internet Security 6 | 48.75 | 12.43 | 695 | 1086 | 201 | 804 | 4792 |
*All tests measures in seconds, except for Cinebench. On the Cinebench test, the higher number is better.
Here are some key features of Avast! Professional Edition
· Antivirus kernel
· Automatic updates
· Simple User Interface
· PUSH updates
· Enhanced User Interface
· Virus Chest
· Resident protection
· System integration
· Script blocker
· Command-line scanner
· P2P and IM Shields
· Integrated Virus Cleaner
· Network Shield
· Support for 64-bit Windows
· Web Shield
· Internationalization
Requirements
· For a computer running Windows 95/98/Me: 486 Processor, 32MB RAM and 50MB of free hard disk space.
· For a computer running Windows NT 4.0: 486 Processor, 24MB RAM and 50MB of free hard disk space and Service Pack 3 (or higher) installed
· For a computer running Windows 2000/XP Workstation (Not Server): Pentium class Processor, 64MB RAM (128MB recommended) and 50 MB of free hard disk space
· For a computer running Windows XP 64-bit Edition: An AMD Athlon64, Opteron or Intel EM64T-enabled Pentium 4 / Xeon processor, 128MB RAM (256MB recommended) and 50 MB of free hard disk space
· For a computer running Windows Vista: Pentium 4 processor, 512MB RAM and 50 MB of free hard disk space
· The program itself requires about 20MB of hard disk space; the remainder of the recommended space is reserved for the virus recovery database file and its index (VRDB, also known as the "integrity database" from the previous version).
· A functional MS Internet Explorer 4 or higher is required for the program to work.
· Antivirus kernel
· Automatic updates
· Simple User Interface
· PUSH updates
· Enhanced User Interface
· Virus Chest
· Resident protection
· System integration
· Script blocker
· Command-line scanner
· P2P and IM Shields
· Integrated Virus Cleaner
· Network Shield
· Support for 64-bit Windows
· Web Shield
· Internationalization
Requirements
· For a computer running Windows 95/98/Me: 486 Processor, 32MB RAM and 50MB of free hard disk space.
· For a computer running Windows NT 4.0: 486 Processor, 24MB RAM and 50MB of free hard disk space and Service Pack 3 (or higher) installed
· For a computer running Windows 2000/XP Workstation (Not Server): Pentium class Processor, 64MB RAM (128MB recommended) and 50 MB of free hard disk space
· For a computer running Windows XP 64-bit Edition: An AMD Athlon64, Opteron or Intel EM64T-enabled Pentium 4 / Xeon processor, 128MB RAM (256MB recommended) and 50 MB of free hard disk space
· For a computer running Windows Vista: Pentium 4 processor, 512MB RAM and 50 MB of free hard disk space
· The program itself requires about 20MB of hard disk space; the remainder of the recommended space is reserved for the virus recovery database file and its index (VRDB, also known as the "integrity database" from the previous version).
· A functional MS Internet Explorer 4 or higher is required for the program to work.
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