Determining the Buffer size of HDD

I have a Maxtor DiamondMax Plus 9 60GB ATA/133 HDD. It was purchased as a bday gift, so I didn’t personally get to ask the seller how large a buffer it had. On the Maxtor site, it says they are available in a 2mb or 8mb buffer, but doesn’t say how to tell what’s what.
http://www.maxtor.com/portal/site/Maxtor/menuitem.ba88f6d7cf664718376049b291346068/?channelpath=/en_us/Products/Desktop%20Storage/DiamondMax%20Family/DiamondMax%20Plus%209&productview=Features
The drive’s model # is 6Y060L0620401 if it’s of any relevance to anybody.
I guess what I’m looking for is a program that says your buffer size, or if anyone would know off hand. Thanks in advance.

Maybe PowerMax will help?