This is IMO only OK ?
I have over the years had flagship model parts like best mobo/cpu and gpus at time of release, all made me happy but they were kinda all the same, my G Force 2 GTS Ultra at new was as good as a my G force 4 TI4600 at new same with my 6800 Ultra at new, but harddrive are near all same with a small difference in speed but Raptors we all know were 10,000rpm instead 7,200rpm, I was put off by small size until recenty, I got a new 150 Raptor X (soon to add 2nd for raid 0), Im honestly telling you its the best part Ive ever bought for any PC anytime, the difference is emense, I had a fast 300gig 16Mb SATA anyhow which unrared 350MB files in like 17sec and 700MB files in 30secs, well now thats down to 4secs and 9secs.
BTW going by HD-TACH's database both Raptor 36 and 74 now are beaten by good 300GIG 16MB drives, the 150 is new king, I get bang on the manu's rated sustained speed of 78MB (always hits 78.4MB).
Its cooler and quieter then before, only makes slight louder than other drives noise seeking, and I made it more noiser by turning of AMM (achostic management), its till ok and its not all the time its going to be heavily seeking.
Put it this way, Ive heard louder old tech drives like ata 100 40 GIGERS.