The Core 2 Quad Q8400: Intel's $183 Phenom II 940 Competitorby Anand Lal Shimpi on May 7, 2009 12:00 AM EST
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Adobe Photoshop CS4 Performance
To measure performance under Photoshop CS4 we turn to the Retouch Artists’ Speed Test. The test does basic photo editing; there are a couple of color space conversions, many layer creations, color curve adjustment, image and canvas size adjustment, unsharp mask, and finally a gaussian blur performed on the entire image.
The whole process is timed and thanks to the use of Intel's X25-M SSD as our test bed hard drive, performance is far more predictable than back when we used to test on mechanical disks.
Time is reported in seconds and the lower numbers mean better performance. The test is multithreaded and can hit all four cores in a quad-core machine.
Intel continues to dominate our Photoshop CS4 test. The Q8400 and Q9400 are equals in this case and both are nearly 15% faster than the Core 2 Quad Q6600. There's a definite benefit to going with a quad-core CPU in our CS4 results, it's not the same sort of boost you get in video encoding but it's appreciable.