There are two things that can make your computer go faster. By adding memory, you can increase the performance of many programs. You can also replace your old processor with a new one. This is only practical if you already own a PowerMac. You should check the product specs to make sure that the processor will work in your computer. Remember one thing about G3 processors: the size of the L2 cache is almost as important as the processor speed. Having a larger L2 cache always your processor to receive info quicker thus making you computer run faster. This means that a 266 MHz processor with 1 MB of L2 cache might be a better investment than a 300 MHz processor with 512 KB of L2 cache. After purchasing one, you should have a pro install it.