Here is an objective test conducted by Passmark that compared Norton Internet Security 2013 vs Windows Defender on the Windows 8 platform, including 10 different performance tests:
Boot Time; Scan Time; File Copy, Move and Delete; PE Scan Time; Installation of Third Party Applications; File Format Conversion; File Compression and Decompression; Boot Time on SSD; Scan Time on SSD; and File, Copy, Move and Delete on SSD.
The products they tested are: Norton Internet Security 2013 and Windows Defender and it seems (they claim) Norton Products are faster than Windows Defender on a daily basis and under normal usage. This is quite new for me because Norton has been always a big elephant on PCs.
That doesn’t mean Norton Products are better or give you more security. This means Norton Internet Security 2013 should run faster and better in the same hardware platform than Windows Defender but security is another thing and honestly Windows Defender is not the best security solution for your PC.
Of course if you are going to install both products on your PC, or if you have Windows Defender installed and want to add Norton Internet Security 2013, remember they may conflict each other because both have antispyware engine and your PC could start performing weird.
From the report, it seems Norton Internet Security 2013 wins on all tests (although some tests get almost the same score) and that’s a good point for Symantec. Having a fast engine with a good security is not an easy task to do and requires a lot of research and developments as well as intensive testing procedures.
You can read the full report (courtesy of Passmark) here. If you are a Windows Defender or a Norton user, we would be happy to hear from you and exchange thoughts about this matter. If you like, you can leave a comment below. Thank you.