ImageSpeedTest question about slow results

home.comcast.net/~bmsardou/Images.zip is a zip file including the stuff to run the java program ImageSpeedTest.

I’m reading through “Developing games in Java” and it all makes sense, except the speed test results I get are drastically slower than what the book says the author got on his much older computer.

I was looking for the reason behind the slowdown.

Author’s results:
Opaque: 5550.599 images/sec
Transparent: 5478.6953 images/sec
Translucent: 85.2197 images/sec
Translucent (Anti-Aliased): 113.18243 images/sec

My results:
C:\Programming\Threads>java ImageSpeedTest 800 600 16
Opaque: 716.0 images/sec
Transparent: 11.757022 images/sec
Translucent: 192.0 images/sec
Translucent (Anti-Aliased): 229.33333 images/sec