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Old 06-19-2007, 09:02 AM   #1 (permalink)
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Default External HDD benchmark

I'm getting 33.7MB/s using FireWire 400 and 25.0MB/s using USB2.0. Are these speeds normal? What are you getting?

I used HDTune to benchmark. Download:
HD Tune website
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Old 06-19-2007, 11:24 PM   #2 (permalink)
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Default Re: External HDD benchmark

I get 31MB/s on USB
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Old 06-19-2007, 11:29 PM   #3 (permalink)
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Default Re: External HDD benchmark

I get 11MB/s
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Old 06-20-2007, 02:55 AM   #4 (permalink)
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Default Re: External HDD benchmark

what so slow? you should get like 480MBps for usb2.0 and 400MBps or 800MBps for firewire or firewire 2
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Old 06-20-2007, 04:46 AM   #5 (permalink)
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Default Re: External HDD benchmark

I also think these speeds are slow. You will never get the full theoretical speed, though.
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Old 06-20-2007, 07:51 AM   #6 (permalink)
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Default Re: External HDD benchmark

also arent the reported speeds for the standard measured in megabits? where as the readings you guys are measuring in megabytes?

I believe that the max speed is burst speed as well, not maintained speed
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Old 06-20-2007, 08:00 AM   #7 (permalink)
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Default Re: External HDD benchmark

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Originally Posted by networkgeek View Post
also arent the reported speeds for the standard measured in megabits? where as the readings you guys are measuring in megabytes?

I believe that the max speed is burst speed as well, not maintained speed
USB2.0 is capable of 480Mbps (60MB/s). Firewire 400 = 400Mbps (50MB/s). Firewire 400 generally performs better than USB2.0, even though its max theoretical speed is lower.

Most regular hard disks can do around 40-60MB/s average read. So I am wondering why we are getting these slow speeds.

My speeds, 33.7MB/s and 25.0MB/s are the average read speed reported after testing with HDTune.
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