Question about drive transfer speeds

Energize · 11 May 2006 at 18:59

Ive seen sata 2 drives referred to as 3Gbps or 300MBps.

This cant be right though.

3,000,000,000 bits /8 = 375,000,000 bytes

375,000,000 bytes /1024 = 366210.9375 KB

366,201.9375 Kb /1024 = 357.62786865234375 MB

So one of the numbers is wrong, unless im missing something, the drives have to be either 300MBps or 3Gbps.

Unless the 300MBps refers to the inner zone and the 3Gbps the outer zone?

Energize · 11 May 2006 at 19:41

I know but I just cant believe there would be such a blatent mistake in simple division.

Energize · 11 May 2006 at 20:23

http://forums.overclockers.co.uk/showthread.php?t=17504457

Its in the sticky that it is called 3Gbps.

Energize · 11 May 2006 at 22:03

Yes I know and 3Gbps = 357MBps I showed you the maths in my first post.

Energize · 11 May 2006 at 22:20

Them saying the interface is only 300MBps though is not in their favour.

Energize · 12 May 2006 at 01:19

No, why does there have to be a 100% speed increase? Maybe it is 300MBps but then it wouldnt be 3Gbps. Either way its either 300 or 357.

Energize · 12 May 2006 at 16:05

10 bits per byte = 286.1 MB, still not right. Unless they mean 300MiB and not MB, in which case they are wrong

.

Energize · 12 May 2006 at 21:31

Dutch Guy said:
3 gigabits per second = 300 megabytes per second

It doesnt, it does equal 300 mebibytes though.

8 bits in a byte and it = 357megabytes

3,000,000,000 bits /8 = 375,000,000 bytes

375,000,000 bytes /1024 = 366210.9375 KB

366,201.9375 Kb /1024 = 357.62786865234375 MB

10 bits in a byte it = 286megabytes

3,000,000,000 bits /10 = 300,000,000 bytes

300,000,000 bytes /1024 = 292968.57 Kilobytes

292968.57 KB /1024 = 286.1 Megabytes