A tale of 2 HDDs

I happen to have 2 sata hard disks on my current machine. Both are 160 GB segate drives. One of them is dying... it wrote a song about how nice the world would be if the wars and bloodshed stopped. Kindly donate 1 dollar to the hard disk recovery fund... um, oh, wrong story...

They are identical except that one of them has 8 MB cache, and another has 16 MB cache. Note that you could arbitrarily get one of these hard disks when you go and buy one from the store. People dont really care about the cache size on hdds, and they just go by brand name and capacity. People are wrong!! Look below to see a benchmark of these hard disks in action. I am trying to be a little sneaky, so I wont tell you which one has how much cache... Lets see if you can figure that out on your own ;)