Fujitsu MAY2073RC	Hitachi C10K147	Hitachi 15K300	Seagate Cheetah 15k.4	Seagate Cheetah 15k.5	Seagate Savvio 15k.1
Rotational Speed		10K rpm	10K rpm	15K rpm	15K rpm	15K rpm	15K rpm
Buffer Size		16MB	16MB	16MB	8MB	16MB	16MB
Maximum Capacity Model		73GB	147GB	300GB	146GB	300GB	73GB
Form Factor		3.5"	2.5"	3.5"	3.5"	3.5"	2.5"
HD Tach 3.0.1.0, 8MB Zones	Burst Speed	247.6 MB/s	145.9 MB/s	145.7 MB/s	215.9 MB/s	192.8 MB/s	220.1 MB/s
	Random Access	7.5 ms	7.1 ms	6.3 ms	6.1 ms	7.0 ms	5.5 ms
	CPU Utilization	1%	2%	2%	1%	1%	2%
	Average Read	54.4 MB/s	73.9 MB/s	106.0 MB/s	78.7 MB/s	113.3 MB/s	96.4 MB/s
	Average Write	49.9 MB/s	65.6 MB/s	73.9 MB/s	71.4 MB/s	33.3 MB/s	14.0 MB/s
HD Tach 3.0.1.0, 32MB Zones	Burst Speed	248.0 MB/s	146.0 MB/s	145.8 MB/s	216.4 MB/s	193.6 MB/s	220.2 MB/s
	Random Access	7.5 ms	7.1 ms	6.3 ms	6.1 ms	7.1 ms	5.5 ms
	CPU Utilization	1%	2%	2%	1%	1%	1%
	Average Read	54.3 MB/s	73.8 MB/s	105.3 MB/s	78.6 MB/s	113.2 MB/s	95.9 MB/s
	Average Write	52.9 MB/s	70.2 MB/s	77.2 MB/s	76.5 MB/s	33.7 MB/s	14.0 MB/s

As you can see, there are some anomalies with the results.  No way the 15k.5 is that slow, just look at the graphs.  So let us summarize the ATTO results as well:

We colored the winners of each test in blue for the 15k units, and pink for the 10k ones.  Obviously, the C10K147 from Hitachi simply outclassed the Fujitsu.  As for the 15k crowd, the 15k.5 still is unbeatable in nearly all of the benchmarks.  But the Savvio 15k.1 ended up being faster than the 15k.4, and in some cases, the Hitachi 15K300 too. 

Our assessment is as follows:

 

Fujitsu MAY2073

75%

Hitachi C10K147

 

Hitachi 15K300

 

Seagate Cheetah 15k.4

 

Seagate Cheetah 15k.5

 

Seagate Savvio 15k.1