The first thing to look at is the CPU. Here is a link to a simple explanation of what a CPU does. Read this. -- remember it is from 2004 !
The specifications for Roxio Game Capture suggest the minimum requirements of a multi-core processor of a certain speed or faster. . The cheap processors do not have the multiple cores so they don't work . Early Celeron processors were usually single core. That's pretty simple; although the later Celeron processors are dual core. Read this old article about single core and multicore processors.
There are people who benchmark computers. This is a link to one site. Notice they rank CPU from high end to low end with a couple of stops in between.
You can also search for the CPU that is in your computer. The manufacture of your computer would have given you that information -- possibly via a sticker on the front of the computer.
Now, how is that helpful? The Roxio game capture software calls for "Intel® Core 2 Duo Processor 1.8 GHz or AMD Athlon x2 64 2.0 GHz" For this discussion we'll not discuss the AMD processors. What follows is still applicable.
Searching for that Intel CPU on the site give the location as a mid low range processor. Look here. Basically if your processor is above that mark; it should work. If it is in the mid range and higher, it should also work.
Remember that with the minimum spec CPU, having anything else running at the time - even the Internet, e-mail , etc will take focus from the task of capturing your game.
Most modern computers either have a built in graphics processor (GPU) or a video card CPU. Modern computer GPU are usually OK. It is best practices to update the drivers for your GPU periodically. The best place is your computer manufacturer's web site - look for drivers. More experienced users with video card GPU often go to the card manufacturer's or the GPU manufacturer;s web site four updated drivers.
Edited by sknis, 13 January 2012 - 06:38 AM.