Best Cluster Size for the following drive configs

[ThC 129 0]

I have an 80gig HD and I want to make 1 20 gig and 2 30 gig partions what is the best allocation unit size to make them 4096 or 8192?

[DosFreak 2]

Depends on what you wanna do.

 

The smaller the cluster size the more efficient usage of space. But file activity is slower.

The larger the cluster size the less efficient usage of space but the file activity is faster.

 

If not doing video work or large file transfers then it's best to leave at Windows default.