Intel DX4ODP 100

I like the way they present the overdrive CPU 'flying' out which rapid speed and taking the applications (running at rapid speed!) with it. The backside of the box shows a table with upgrade possibilities and which performance improvement you can expect.

Overdrives we're expensive back in the day and often you could install a regular processor as well. If you couldn't install a regular processor it was advisable to scratch your head twice before buying an overdrive; installing an expensive CPU on an old motherboard with old components like the VGA card doesn't always give the performance boost you wanted.