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SATA disk, slow?
Hi
I just bought computer with Gigabyte 7N400 PRO2 (nForce2 and SATA) motherboard, Athlon XP2400+ and 80GB SATA 7200rpm Seagate Baracuda disk. I also have one older 80GB Maxtor 7200rpm ATA100 disk. The problem is when I test disk performance of both disks. I made program that writes and reads to/from 200MB file but I also tested copying files with windows explorer. SATA disk can write approx 35-40MB/s and read 17MB/s, while ATA100 does 40MB/s read, 21MB/s write. In all tests ATA 100 is little faster than SATA. I can even see the progress bar going faster when reading/writing from/to ATA 100 drive. Isn't this odd that ATA 100 is faster? Shouldn't SATA be much faster than that? I use Windows XP with SP1 and I don't have fragmanted disk. Shouldn't SATA write with 80MB/s or it's just my imagination? regards Tomaz |
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On Fri, 4 Jun 2004 18:26:58 +0200, "Tomaz Koritnik"
wrote: I just bought computer with Gigabyte 7N400 PRO2 (nForce2 and SATA) motherboard, Athlon XP2400+ and 80GB SATA 7200rpm Seagate Baracuda disk. In all tests ATA 100 is little faster than SATA. Shouldn't SATA write with 80MB/s or it's just my imagination? Sorry to say: yes, that's your imagination :-) You are very unlikely to generate and/or accept 80 MB/s on an Athlon 2400+ :-) What you are looking at is not ATA vs SATA performance but the limits of your system and the fact that it is probably better optimized for ATA than for SATA. -- Kind regards, Gerard Bok |
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Tomaz Koritnik wrote:
Hi How large are speed diferences with SATA for Seagate, Maxtor and WD disks? Do you have any approximate rates for them? The present SATA drives use essentialy the same mechanical drive mechanism as the previous 7200 RPM ATA versions. Although the SATA interface can pass 150MHz, no present drive can output at that rate. The 10,000 RPM WD Raptor would have the highest output, but this is more due to its rotational speed rather than to the SATA configuration. SATA is still a good choice, if only for the smaller cables and lack of master/slave confusion. Virg Wall -- A foolish consistency is the hobgoblin of little minds,........ Ralph Waldo Emerson (Microsoft programmer's manual.) |
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On Sat, 5 Jun 2004 19:45:54 +0200, "Tomaz Koritnik"
wrote: Hi How large are speed diferences with SATA for Seagate, Maxtor and WD disks? Do you have any approximate rates for them? regards Tomaz Specific drive models would need to be considered, a Google search for benchmarks (of those specific models) is the best way to find *current* information, though of course you'd need to also consider the motherboard, SATA implementation... An Intel board with Southbridge-integral SATA would be the optimal interface with a seperate chip or PCI card being the worse, usually. |
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