SATA or ATA harddrive?

  • Thread starter Thread starter Sabot
  • Start date Start date
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Sabot

Hi there, I need to get new hard disk, but don't know for which standard
shall I go for. I have ATA133 on board but been thinking about sata drive +
pci controller but somebody told me that pci cannot handle such speed
150mbps, so ata133 drive might be better performer using on board
controller. I don't want to change my mobo, which is quite good, I got to go
for controller if I choose sata. BTW what advantages has sata over ata
besides improved speed and nice cable? Also which drive is better caviar by
western digital or maxtor diamondmax Plus 9, both 200gb?
thanx and sorry for my english, I done my best : )
 
Hi there, I need to get new hard disk, but don't know for which standard
shall I go for. I have ATA133 on board but been thinking about sata drive +
pci controller but somebody told me that pci cannot handle such speed
150mbps, so ata133 drive might be better performer using on board
controller. I don't want to change my mobo, which is quite good, I got to go
for controller if I choose sata. BTW what advantages has sata over ata
besides improved speed and nice cable? Also which drive is better caviar by
western digital or maxtor diamondmax Plus 9, both 200gb?
Click to expand...

32-bit, 33 MHz PCI has a 133 MBps bandwidth, shared among all devices on the
bus. Therefore, neither SATA 150 or SCSI U160 will get max benefit on a 32-bit
PCI card.

OTOH, a single HD, even a high-performance SCSI HD, cannot sustain much above 80
MBps anyhow, so the inherent HD physical and electronic limitations will rule.
Except for the WD Raptor 10K RPM SATA drive, virtually all SATA HDs are based on
7200 RPM IDE hardware, and will perform the same as their IDE versions.

So, save your $$ and add an IDE HD, if your controller isn't full.
 
32-bit, 33 MHz PCI has a 133 MBps bandwidth, shared among all devices
on the bus.
Click to expand...

32x33=1056 not 133

PCI is about 32Megabytes per second not Megabits per second. I don't
dispute the rest of your post.
 
JS said:
32x33=1056 not 133

PCI is about 32Megabytes per second not Megabits per second. I don't
dispute the rest of your post.
Click to expand...

No, he has it right. Bits is a little 'b' but he has a capital B, for
Bytes. E.g. 133MBps, MegaBytes per second.

PCI is 33(.333...) MHz. It's a 32 bit bus. That's 4 (8 bit) bytes wide.
4 x 33.333... = 133.333...MB/s (I prefer the slash for per because it's
mathematically correct)

People round both off: 33Mhz and 133MB/s
 
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