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p.1 #19 · External hard drive advice for windows vista | |
Bifurcator wrote:
I can't help what the software tells me. Others are showing burst rates of over 280MB/s. And if you look around you will see that while most report top speeds around 200MB/s there is difference ratio of 25% on the lower end between test systems. And no, the difference between 200MB/s and the 210 to 240 I claimed is NOT "15 to 28%". How's that math work? Try more like 5% or something...
You didn't claim 210 to 240. Quoting from your post:
They can sustain about 230 to 255 MB/s both read and write
You also doubled down on this claim in a later post.
Also, you didn't say "burst speed". What you said, again quoting from your original post:
They can sustain about 230 to 255 MB/s both read and write
Words, particularly those used in technology, have specific meanings.
Now lets do the math based on your claimed 230 to 255MB/s, with real world max at 200MB/s
(230-200)/200 = 0.15 or 15%
(255-200)/200 = 0.275 or 28%
Do you get it now?
there is difference ratio of 25% on the lower end between test systems.
Different people use different benchmarks, which run their tests using different methods. Some tests only report average sustained speeds over the entire drive or over representative sectors spread over the drive, and not the maximum speed which is obtained at the outermost sectors. As the screenshot of the HD Tune benchmark I posted shows, the drive averages around 160MB/s for sustained read speeds over he entire disk, about 20% less than the maximum speed, which is about what other people have reported also. No one has reported sustained read speeds in the 230 to 255MB/s range which you claim to be seeing on your machine.
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