Faster than WD JB in transfer rate
This Dmax+8 has average 51 Mb/sec transfer rate (TR), while WD 80 Gb JB series (with 8 Mb cache) 41 Mb/sec. Even the latest 200 Gb (66 Gb/platter) BB/JB from WD is no match in TR:
http://www.storagereview.com/articles/200210/20021018WD2000xB_2.html (Note that BB with 2 Mb cache and JB series with 8 Mb cache are almost identical in TR).
However, apart from TR, access time, cache and firmware features (e.g. 'tag-n-queue') are also important in determining performance. TR is not the all in all, but neither is access time or cache size. 8 Mb can be helpful but not in all situations. In fact many people think that 8 Mb cache has been hyped up for what its worth. The relative contribution to performance by TR, access time and cache to a large extent depends on your OWN hard disk usage.
Dmax+8 is the FASTEST IDE hard disk in term of TRANSFER RATE now. So in the hard disk usage where large file read/write are involved in video/graphics, Dmax+8 is also the fastest hard disk FOR THIS COMPUTING NEED.
I will concede though, for the usual/typical desktop and server environment where many mixed small to medium files are frequently accessed, WD 8 Mb with larger cache and better access time is likely to perform better than Dmax+8. But the jury is still out because I have yet to see a formal APPLICATION benchmark comparison of Dmax+8 with WD JB or other hard disks.