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"X" ratings in AGP and CDROM

Posted on 2002-03-15
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Last Modified: 2012-05-04
AGP and CDROM uses " X " ratings to identify their speed. AGP is 4X while CDROM is 52X. Are the ratings measured the same ie CDROM 52X means 13 times faster than AGP 4X.


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Question by:hhheng
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tmj883 earned 40 total points
ID: 6869981
No...works like this...
For AGP:
BUS Type     Width     Speed     Bandwidth
AGP1X       32(bits)   66.6(mHz) 266 (MM/sec)
AGP2X       32         66.6      533
AGP4X       32         66.6     1066
For CDROM:
Drive Speed     Transfer Rate
1X            150(K/sec)
2X            300
3X            450

and on... Hope this helps...T
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LVL 14

Expert Comment

by:tmj883
ID: 6869983
No...works like this...
For AGP:
BUS Type     Width     Speed     Bandwidth
AGP1X       32(bits)   66.6(mHz) 266 (MM/sec)
AGP2X       32         66.6      533
AGP4X       32         66.6     1066
For CDROM:
Drive Speed     Transfer Rate
1X            150(K/sec)
2X            300
3X            450

and on... Hope this helps...T
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Author Comment

by:hhheng
ID: 6870260
What does "MM" in bandwidth stands for ?
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Expert Comment

by:tmj883
ID: 6870442
1066MM/sec approximates 1Gb/sec.T
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Author Comment

by:hhheng
ID: 6870463
Thanks and cheers..
Heng
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LVL 14

Expert Comment

by:tmj883
ID: 6870511
You are welcome.T
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