OnlyMe said:
HI can anyone please explain the difference between 8mb cache and 32mb
cache.
I have the chance to pick-up a WD green 1 TB HDD with 8mb cache for $119.00
AU.
With kind regards From WillofAustralia
You can check some benchmarks here. A Caviar Green with 16MB cache happens
to be compared to a Cavier Green with 32MB cache. The average transfer
rate is a little bit higher for the unit with the larger cache. Smaller files
may benefit more than large files.
http://www.xbitlabs.com/articles/storage/display/1tb-14hdd-roundup_17.html#sect0
If you wanted better performance, changing brands is probably the fastest way
to get that performance. While a few percentage points boost caused by a
bigger cache is nice, the "technological leapfrog" played by the companies
is an easier way to find a faster design. If you find the latest technology,
it might have a higher sustained transfer rate where the head meets the
platter for example.
If all you need is mass storage, most people don't care if a few percentage
points difference exists between the drives. When buying 1TB drives, many
potential customers are looking at "dollars per gigabyte" as their metric.
That, and hoping the drive doesn't die the day they take delivery. (Read
the reviews on Newegg, to see what the product quality is like.)
Don't forget your backup strategy... Any mistakes or accidents at the
1TB capacity point, means a *lot* of lost data. And these drives die
like any other.
Paul
