Quick Take

The Western Digital WD7500AAKS is a very solid entry by WD into an extremely competitive marketplace. Its performance is near the top of the charts in all benchmarks we ran in our labs, and WD's recent decision to grant the retail SE16 drive series a 3 year warranty removes one of the major issues surrounding this line of drives.

Improving the overall picture of this drive is the remarkably low power consumption it is able to boast at load conditions, although idle power consumption is average for this class. Western Digital has put together a very attractive package in this drive, particularly for situations where power consumption is a factor for systems running at load or near load conditions the majority of time. When comparing this drive to others in its class (for example, the Seagate 750GB 7200.10), the Western Digital WD7500AAKS's 10.7W power draw is nearly 25% less.

The WD7500AAKS scored some of the highest marks we've ever seen on some of the synthetic tests in the general desktop product sector. While the synthetic portion of the benchmarks are of arguably less value than the real world tests, the fact that this drive scores as well as it does gives it additional bragging rights in a market becoming increasingly crowded with similarly-performing hardware.

Real-world performance of the drive was excellent as well. We expected the Raptor to trounce the WD7500AAKS in all benchmarks, but we didn't expect the large differential between this drive and the Seagate drive. Considering these two drives are targeted at the same market space, Western Digital has a clearly superior product this time around. The iPEAK gaming performance in particular was an area where the WD7500AAKS excelled, often approaching (and occasionally beating) the WD Raptor due to excellent sustained transfer rates.

The drive's thermal performance, while nothing to boast about, is certainly above average, particularly given the capacity. The idle temperature of the drive sat squarely in the middle of our tests, but the drive truly shines with its fully-loaded heat increase of only 12%. This made it the coolest 750GB drive we've tested by a wide margin, and even gave the Samsung T166 (our current thermal champion) a run for its money. Noise, too, was a pleasant area of surprise for this drive, making this a suitable offering for even a HTPC setup.

In closing, the Western Digital WD7500AAKS offers strong performance, runs quietly, and emits relatively low amounts of heat. With a warranty that now mirrors that offered by most other manufacturers (except for Seagate, which boasts a full 5 year warranty), the drive can be recommended for virtually anyone looking to buy a drive in this price range. Western Digital has come a long way with its SE16 series, and this drive is an example that shines above its 750GB brethren.

Actual Application Performance
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  • Dave Robinet - Thursday, August 9, 2007 - link

    Actually, the difference is that the EIDE drive only is offered up to a 500GB capacity. This precludes it from having the additional features given to the 750GB drive, as mentioned in the article.

    If you're only using the single drive under "normal" desktop usage, however, you're not terribly likely to see a big difference in performance between a 500GB SATA and 500GB EIDE, all things being equal.

    Thanks for reading!

    dave
  • semo - Thursday, August 9, 2007 - link

    i understand the sata vs. pata arguments. it's just the new features and low power draw that interest me and since the model numbers look so similar i thought that they would share the same characteristics.
  • Frumious1 - Thursday, August 9, 2007 - link

    Besides the one using a slower, outdated interface? Probably not. Thankfully, the 750GB drive is NOT available in PATA format as far as I can tell. WD's EIDE offerings top out at 500GB on their website. Seriously, who buys a top-end hard drive in EIDE format these days? Hell I only have one IDE connection on my motherboard, and that's no longer in use!
  • semo - Thursday, August 9, 2007 - link

    the 750gb version may be a top end part but the 500gb is very reasonably priced. anyway, you can never convince me that a hard drive is "high end", whatever the cost. real world performance does not vary much and depends very much on usage patterns. now an ssd or a revolutionary redesign of hdd i can consider to be high end.
  • Dave Robinet - Thursday, August 9, 2007 - link

    Agreed - if you can use SATA, you will. Some people can't, however, and the EIDE interface isn't an incredible bottleneck to the system (like, for example, the move from ISA to PCI graphics cards was in adopting the new bus).

    You're right, though - there's no reason to intentionally buy EIDE anymore if you have SATA available in your system. :)

    Thanks for reading!

    dave
  • Basilisk - Thursday, August 9, 2007 - link

    'Won't there be negligible P-ATA demand, with none from manuf's? So, 'probably no P-ATA version, or a hefty premium on it.

    If my Linux distro supported the S-ATA controller chip, I'd spend the $20-$25 on a PCI or PCI-e S-ATA card and ignore the P-ATA. It would be a shame to have that P-ATA 750GB and later find yourself w/o a m/b having P_ATA to make good use of it! [Okay, you could probably buy a P-ATA controller card....]
  • wilburpan - Thursday, August 9, 2007 - link

    Who buys a large capacity EIDE hard drive? I did recently.

    Why? I have an old computer that I've repurposed into a file server running Linux. This computer is old enough that it doesn't have SATA connections.

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