Here's my HDTune results for comparison between HDD vs SDD. These are read speeds only, didn't test write. Dunno if it's gives any practical info, but here we go:
Intel X-25V 40GB SSD SATA2 (in IDE compatibility-mode):
Intel X-25V 40GB SSD SATA2 (in AHCI-mode):
for comparison, 1,5 year old regular but relatively fast HDD @ 7200rpm,
Samsung Spinpoint F3 500 GB SATA2 :
and some slightly older regular drives (all 7200rpm though),
Samsung F1 250 GB SATA2, about 3 years old:
Western Digital 250 GB SATA2, about 3-4 years old :
Intel X-25V 40GB SSD SATA2 (in IDE compatibility-mode):
Intel X-25V 40GB SSD SATA2 (in AHCI-mode):
for comparison, 1,5 year old regular but relatively fast HDD @ 7200rpm,
Samsung Spinpoint F3 500 GB SATA2 :
and some slightly older regular drives (all 7200rpm though),
Samsung F1 250 GB SATA2, about 3 years old:
Western Digital 250 GB SATA2, about 3-4 years old :