Toshiba SATELLITE PRO C50-A-1E2 --- speed up help!

Simple query:

Bought a cheap second hand laptop for work... was just looking at a quick hack to give it a bit more performance for multi tasking (SD card using ReadyBoost).

Query is, laptop will take 2GB SD/MicroSD or 32GB SDHC or 64GB SDXC...

Is it worth using SDHC to give ReadyBoost all that GB or is there only so much it can do so go for a cheap 2GB SD instead?

Whatever you have lying around.

If you're buying something then go for a more effective upgrade instead. An SSD or more memory depending on what your bottleneck is.