Beta testing Windows 7 - Part7 (Photoshop Benchmark)

With the Windows 7 test system running, it's time to see what it can do. Keep in mind that the total cost for just the hardware (less the Antec Skeleton case) was around $525. I went over to Adobe and downloaded the 64-bit trial version of Photoshop CS4. The following is an excerpt from Adobe's knowledge base article '64-bit Operating System benefits and limitations in Photoshop CS4 (Windows)'

Opening 32-bit and 64-bit versions

Photoshop installs a 32-bit and a 64-bit shortcut into the Start Menu. If you need to manually run the application, the 32-bit version is the photoshop.exe file, in the Program Files (x86)/Adobe/Adobe Photoshop CS4 folder, and the 64-bit version is the photoshop.exe file in the Program Files/Adobe/Adobe Photoshop CS4 folder.

Third party plug-ins

Third party plug-ins written for 32-bit versions of Windows will not work when you run the 64-bit version of Photoshop. If you need to use plug-ins that haven't been updated, run the 32-bit version of Photoshop. When you are done using the plug-ins, close the 32-bit version, and run the 64-bit version. Contact the plug-in manufacturer for information about any updates.

Processor speed and Photoshop operations

Although the 64-bit version of Photoshop will speed up some operations, it won't speed all of them, nor will it speed the operation equally. Generally, operations will run approximately 8-12% faster. Overall, processor speed is not the main advantage of using the 64-bit version.

RAM use

The primary advantage of using the 64-bit version is to access amounts of RAM beyond what Photoshop can access when the 32-bit version is run. You can take advantage of more than 4 GB of RAM only when you are on 64-bit Windows, using 64-bit Photoshop. If you use files large enough to need more than 4 GB of RAM, and you have enough RAM, all the processing you perform on your large images can be done in RAM, instead of swapping out to the hard disk.

This table lists the amount of RAM available to Photoshop with the different versions of Windows:


Photoshop Version

Windows Version

Maximum amount of RAM Photoshop can use

32-bit

32-bit

1.7 GB

32-bit

32-bit

3.2 GB

64-bit

64-bit

as much RAM as you can fit into your computer

Now with the two different versions of Adobe Photoshop installed (32-bit & 64-bit) it was time to find a benchmark test. I found DriverHeaven Photoshop Bench V3. I ran the tests as instructed and here's the results:


DriverHeaven Photoshop Bench V3

Intel Core2 Quad 8400

Intel Core2 Quad 8400

64 bit

32 bit

Texturiser

1.5

1.8

CMYK

1.2

1.3

RGB

1.4

1.5

Ink Outlines

20.4

21.0

Dust & Stratches

2.0

2.0

Watercolor

20.3

21.0

Texturiser

1.6

1.6

Stained Glass

13.3

12.6

Lighting

1.8

2.0

Mosiac

9.5

13.0

Extrude

83.4

98.4

Smart Blur

58.9

58.1

Underpainting

21.7

24.1

Palette

17.2

18.4

Sponge

28.3

28.4

Total

282.5

305.2

As you can see, the 64-bit version was, on average, 7% faster than the 32-bit version. To compare the results of the Windows 7 test system with other systems, please click here and look for my name 'Scott St. Gelais'.

I have now shown you the pros and cons of 32-bit and 64-bit versions of Adobe Photoshop CS4 running on Windows 7. Which version would you choose?

Till then,
Scott


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