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Average Access Read & Write Time

The average read/write response time is measured in a 10-minute test to read/write 512-byte data blocks with a request queue of 1.

The outcome of this test depends largely on the card rather than on the reader. And the new Extreme IV in its favorite Extreme FireWire reader is unrivalled here. The response time of the cards is higher by a third of a millisecond in the Extreme USB and the ImageMate USB and by half a millisecond in the ImageMate FireWire. This difference matters for the Extreme series cards, but the Ultra II doesn’t care – its response time is far too bad.

The card-readers don’t differ much when performing write operations. The Extreme IV wins this test with a response time of 30 milliseconds. The Extreme III is slower by 5 milliseconds and the Ultra II has a twice higher response.

 
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