Skip to main content

OCZ RevoDrive Hybrid: Solid-State Speed With Hard Drive Capacity

SSD Caching: PCMark Vantage

Caching is a fickle technology to benchmark because its performance gains depend on the movement of frequently-used data from one slower storage medium to a faster repository. This means monitoring performance over time. As a result, we're going to toss out our typical SSD benchmark suite and turn to application-level testing. However, we're going to start off with the older PCMark Vantage, since it's more sensitive to hard drive-esque performance. This makes it ideally suited for examining the effects of SSD caching.

Overall, the RevoDrive Hybrid outperforms Intel's Smart Response Technology. But the individual suites within PCMark Vantage really highlight the specific differences. Nvelo's Dataplex has a catch-all policy to data caching, whereas Intel's algorithm tries to avoid caching large chunks of data read sequentially, assuming that sort of usage pattern is only going to be touched once by the user. That's why, we surmise, SRT doesn't help improve performance in the TV and Movies suite.

Looking at the graphs, it's clear that the performance benefit of caching is much more dramatic on the RevoDrive Hybrid. It nearly happens all at once. Compare this to the Z68, where there's a slow and steady improvement. No matter the solution you analyze, though, you need three or four runs in order to experience the boost of performance enabled by caching.

This graph helps illustrate that caching with an SSD is in no way equivalent to unleashing the full potential of an SSD. While the RevoDrive Hybrid brings an impressive six-fold jump in performance, it's still not as fast as running a SSD on its own. If you manually manage storage space between a SSD and hard drive, it's possible to achieve 50% more performance than the potential of a PCIe-based RevoDrive Hybrid.

  • aznshinobi
    This should be compared with the Seagate Momentus XT, where's that?
    Reply
  • LuckyDucky7
    Except for those who don't have SATA 6GB/s controllers on their motherboards, this product is a little redundant.

    I mean, it's really cool and all, but since Vertex 3 drives on their own run about 200 bucks for 120GB, you could get 2 x OCZ Vertex 3's in RAID, and a high-performance 1TB 7200 RPM drive like the Western Digital Caviar Black (the one mounted there is 5400RPM) for the same price as this drive.

    So instead of the rather limited 120GB, you'd get 240GB of SSD storage instead, along with a faster hard drive. Because with 240GB, who needs cache?
    Reply
  • chumly
    What a dumb idea.
    Reply
  • zybch
    LuckyDucky7Except for those who don't have SATA 6GB/s controllers on their motherboards, this product is a little redundant.I mean, it's really cool and all, but since Vertex 3 drives on their own run about 200 bucks for 120GB, you could get 2 x OCZ Vertex 3's in RAID, and a high-performance 1TB 7200 RPM drive like the Western Digital Caviar Black (the one mounted there is 5400RPM) for the same price as this drive.So instead of the rather limited 120GB, you'd get 240GB of SSD storage instead, along with a faster hard drive. Because with 240GB, who needs cache?Yeah, like i want to use 'scary'RAID in my system. Screw that.
    Reply
  • alidan
    zybchYeah, like i want to use 'scary'RAID in my system. Screw that.
    than i believe use a raid 5, i think thats it, raid the 2 ssds and get another hdd in there as a backup for the two ssds
    Reply
  • rantoc
    alidanthan i believe use a raid 5, i think thats it, raid the 2 ssds and get another hdd in there as a backup for the two ssds
    For a raid 5 at least 3 drives is needed. And the chipset integrated raid5 solutions don't have powerful checksum offloading either meaning its either slow or hogs the cpu. Sure raid 5 is awesome in its ways but it also has its drawbacks.
    Reply
  • billybobser
    Just raid 0 and actively backup important files yourself if you can't take the drawbacks of it.

    If something just created is really worth saving, save it twice. Else just a back up image per week.
    Reply
  • shqtth
    This should be compared with the Seagate Momentus XT, where's that?
    ..

    It should be !


    Also why use 5400rpm? why not 7200rpm? Or use the XT.


    To me, this product looks like its hurting. Overpriced.


    I tested a few of the XT's are they are quick. Pretty much constant 100+ data and super low latency on common tasks.
    Reply
  • Reynod
    Could you please look at a direct comparison with the Momentus XT please?

    I have one as well.

    From what I can see this is a bit better than the XT but it would be good to know Andrew.

    Cheers !
    Reply
  • nebun
    zybchYeah, like i want to use 'scary'RAID in my system. Screw that.download the correct drivers and set it up correctly and you will have no issues....i have been using raid 0 for over 5 years with no issues at all
    Reply