Test Setup:

Intel Core i7 940 processor (operating at 3,709MHz – 22x168.6MHz); MSI Eclipse SLI motherboard (Intel X58 Express with three PCI-Express 2.0 x16 slots); 3x 2GB Corsair TR3X6G1333C9 memory modules (operating in dual channel at DDR3 1,349.4MHz 9-9-9-24-1T); Nvidia GeForce GTX 280 Graphics Card; Seagate Barracuda 7200.11 250GB SATA hard drive; Enermax Galaxy DXX 1000W PSU; Windows Vista Home Premium x86-64 (with Service Pack 1); Intel inf 9.1.0.1007 WHQL.

Paint.NET x64

Website: Paint.NET

This is the 64-bit version of the popular free image editing software, Paint.NET. It's not as advanced as something like Adobe Photoshop CS3 or Corel Paint Shop Pro Photo X2, but it does serve well for most image editing tasks.

We used the PDNBench script to test the processing times for a range of images and filters. The multi-threaded software also takes advantage of multi-core processors quite effectively.

For more information on what the benchmark script entails, please see this thread on the Paint.NET forums.


There's virtually nothing between the two, but on average Windows 7 is a fraction slower in this very multi-threaded application.

GIMP Image Editing

Website: GUN Image Manipulation Program (GIMP)

Our GIMP image editing test simulates how well a PC can manipulate a collection of large digital photos, and to achieve a low time requires a PC with a powerful CPU, plenty of quick memory and efficient hard disk drive access.


Again, there's very little between the two operating systems and in this image editing application Windows 7 comes out slightly ahead instead.

File Compression & Encryption:

WinRAR

Website: WinRAR

Our file compression and decompression tests were split into two halves to cover a broad spectrum of performance. The first test we ran was to compress and encrypt the MPEG-2 source file from our video encoding test with the highest quality compression ratio. Secondly, we compressed and encrypted the folder of 400 photographs used in our Photoshop Elements test with the same compression settings.

File Decompression & Decryption:

The two RAR archives created during the compression and encryption tests were then decompressed and decrypted.



Windows 7 seems to be consistently slower in our multi-threaded compression tests, but way faster in file creation as shown above. Usually the decompression tests are hard drive limited and with that kept consistent between both runs it looks like Windows 7 is a bit of a mixed bag.