Seagate Barracuda 7200.11 (640GB) review

Price when reviewed

Seagate’s long-running Barracuda range comes with decent specifications, including a 32MB cache and 7,200rpm spindle speed across most of the range.

Seagate Barracuda 7200.11 (640GB) review

This 640GB drive is the lowest capacity Seagate product on test this month. But with two dense 320GB platters, it was no slouch in our performance tests, with a read speed of 96.9MB/sec – only bettered by three other drives this month – and a write speed of 84.4MB/sec that’s also faster than most.

Other results are good, too, including a burst speed of 238.5MB/sec and average sequential read speed of 101.8MB/sec. The only low spot is that access times aren’t outstanding – 16ms and 8ms for reading and writing respectively.

At 10.2p/GB it isn’t cheap, but this Seagate is the best of the 500GB and 640GB drives and, consequently, worth a look if you’re after good performance in a smaller drive.


Capacity 640GB
Hard disk usable capacity 595GB
Hard disk type Mechanical
Cache size 32MB
Spindle speed 7,200RPM
Seek time (ms) 15ms
Cost per gigabyte 10.2p

Noise and power

Idle power consumption 6W

Performance tests

HD Tach burst speed 238.5MB/sec
HD Tach random access speed 14.6ms
HD Tach average sequential read speed 101.8MB/sec

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