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AS SSD Benchmark thread - Page 96

post #951 of 3820
Quote:
Originally Posted by lightsout;11841586 
Mayeb the real issue is that sandforce drives can only achieve their their marketed speeds under certain conditions.

doubtful. more likely that this tool was developed poorly.
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post #952 of 3820
Quote:
Originally Posted by gammite;11841683 
doubtful. more likely that this tool was developed poorly.
AS SSD benchmarks in one particular way. It writes 100% incompressible data in order to test throughput. Since Sandforce relies on a hardware level compression aspect, this is effectively defeated by using AS SSD benchmark, and so you don't see the advertised speeds.

At the other end of the scale is something like the CrystalDiskmark benchmark which will write 100% compressible data you then see the advertised speeds.

The real point is that neither of these types of situation are what you might call real world. Real world use is likely to be a lot of somewhat compressible data so you won't quite get CrystalDiskMark speeds but may often come close.

If the fact that Sandforce drives achieve some of their speed from compression bothers you then I suppose the best bet is to stick to the C300 for now, since not only does it not rely on any compression in order to achieve its rated speeds but it is also probably slightly better than Sandforce in speeds.
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post #953 of 3820
2x OCZ Vertex 2 RAID0

SSDBenchmark7.jpg
post #954 of 3820
Quote:
Originally Posted by lightsout;11841586 
Well it appears you didn't read enough this time. As you got the results of this tool. Then wasted half of your day trying to figure out why you got said results.

Thats all I'm saying.

Mayeb the real issue is that sandforce drives can only achieve their their marketed speeds under certain conditions.

You are dead wrong bro. This benchmark needs to be thrown out the window. Go ahead and Google "SSD benchmarks" and see what pops up. Yes, the first result is this thread, so when people go looking for benchmark data on drives they look at that BS chart and think that half of the drives are junk when they are in fact just as good if not better than the higher-scoring drives. OCN is effectively dropping the ball by even having these benchmarks posted.
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post #955 of 3820
Quote:
Originally Posted by PhillyOverclocker;11845890 
OCN is effectively dropping the ball by even having these benchmarks posted.

Which can only be a good thing since why do some SSD reach their speeds listed for them and others do not when not limited to port speed and setup correctly using AHCI?
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post #956 of 3820
Quote:
Originally Posted by PeterUK;11846384 
Which can only be a good thing since why do some SSD reach their speeds listed for them and others do not when not limited to port speed and setup correctly using AHCI?

You haven't been following very well. The benchmark just gives false results for many drives including mine.

Even if the drives that are exactly the same speed in tried and true benchmarks like HD Tune and ATTO.

Look at these benches of the same exact machine with the same drivers, etc. My sandforce drive flies in any other benchmark except AS SSD. I did dozens of benchmarks to prove it. You need to do some homework before throwing your hat into the ring with some new benchmark program that obviously has inconsistent results. It is billed as being SSD friendly because of the name, but it is just an already-outdated garbage benchmark. I have seen tons of them come and go.

benchmarkscreenie.png
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post #957 of 3820
The benchmark doesn't give false results with the Sandforce drives. AS SSD Benchmark uses random incompressable data that the Sandforce on the fly compression doesn't work with like it does with ATTO's compressable data(all zeroes or ones).

AS SSD Benchmark results are accurate for random incompressable data and ATTO is accurate for compressable data. The Sandforce drives are great as boot(nearly unanimous among professional reviewers as THE best boot drives) drives because nearly all of Windows tasks are highly compressable and the Sandforce small write performance. The vast majority of OS activity is small random writes and the Sandforce drives are very good at small random writes(compressable or not) The Sandforce drives don't work so well as storage drives for large file transfers of things like pictures, video, blurays or anything else that is largely random and incompressable.
Edited by sgilmore62 - 12/31/10 at 5:32pm
    
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post #958 of 3820
My 2 months old OCZ Vertex 2. It's about 3/4 full, it's only 40gb frown.gif

Does my benchmark look right?

hdtach.jpg

Cheers.
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post #959 of 3820
will upload mine in a few:D
post #960 of 3820
Quote:
Originally Posted by TARRCO;11846881 
My 2 months old OCZ Vertex 2. It's about 3/4 full, it's only 40gb frown.gif

Does my benchmark look right?

hdtach.jpg

Cheers.

Yeah, the drops on the graph is where data is on the drive but I wouldn't use HDTach or anything else that writes large amounts of data to benchmark your SSD.

I have 6 SSD's, 4 Sandforce, 1 Samsung, 1 Intel and I have benchmarked the heck out of all of them. I can tell you that benchmarking will make your SSD slower especially the Sandforce drives. The Sandforce drives recover slower than Samsung or Intel G2. Intel G1 only recover with Secure Erase. My advice is don't benchmark your SSD, just use it.
Edited by sgilmore62 - 12/31/10 at 6:23pm
    
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