5,400rpm vs 7,200rpm in a RAID 0 configuration

I have read the guide in the forums (see link below) and have a question not answered regarding a RAID 0 configuration.
pros/cons of 7200rpm HD

I am ordering a notebook tomorrow and really want to make sure it has the best performance possible (don't we all).

I am interested in other peoples experience with the following drive speeds in a RAID 0 setup.

Both are configured as RAID 0
500GB (250GB x 2) 7,200RPM (8MB Cache)
1TB (500GB x 2) 5,400RPM (8MB Cache)

Sure the 7,200 benchmarks a little better in seek time etc, but is that an issue in a RAID 0 set up? Both have acceptable drive space for me with the larger (500GB x 2) being a little more appealing.

Anyone provide a little insight into this set up... Pretty please?

 

Well it looks like the options that you are getting are all Samsung harddrives.
Samsung makes very good harddrives, so you should be good with wither of them. However, I have not seen any benchmarks on either of the drives.
The data density of the 500gb 5400 drives is the same as from the 320gb 5400 drives, so expect the same performance.
The 250gb 7200 drives are still based on two platters, so the data density is 12.5Gb more per side of each platter. This will only yield slightly higher bandwidth than the 200gb 7200 drives. This means that the 7200 drives are going to be faster.
How much is the price difference between the 250gb x 2 and the 500gb x 2.
The speed difference between the drives is at most 5-7mb/sec, so I would go with the 1Terabyte array if its not much more expensive.

K-TRON

 

Where'd you find a 250GB 7200RPM 2.5" Drive? and where'd you find a 500GB 5400RPM 2.5" Drive? Those are 3.5" drives man...

 

Athlon64M,
The drives are options on Alienware's new 17" monster the M17x seen here on the data sheet.

K-TRON,
The price difference is $250... Not much considering the overall system price. I'll be coming from a system that had 64gig SSD that frankly didn't impress me too much. but I didn't have the system more than a week before I had to send it back for repairs. So I never really got to test it too much. I just really want a screaming fast machine for Photoshop and some other desktop publishing aps and the occasional game.

 

Yeah, I would say that for $250 more, you get 2x the storage at say 95% the performance of the 7200rpm drives.
It will be a beast man. Since you live in alaska, leave the window open, you will need it to cool that thing

K-TRON

 

That's why Alaska is the overclockers dream!

Thanks for the tips! +reps.

 

Fishermen's dream too!

I used to go fishing at a much better place than the eagle river(for those of you who live near Anchorage that is)!