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Significance of Random Read (Vertex3/C300)

post #1 of 19
Thread Starter 
I've noticed that many have become unsure after anantech's review of the performance of the OCZ Vertex 3. Many users (including myself) were planning on purchasing the Vertex 3 120GB to put into our systems. Anantech's review showed that the Vertex 3 had a random read performance of 35-37, with hardly any gap between the 3Gbps and 6Gbps interfaces; though it performed quite well in all other areas.

I'm not quite knowledgeable in the in's and out's of SSD's, I'm just a consumer that researches and buys. From what I've gathered, most enthusiasts say random read is one of, if not the most important metric there is for a snappy system. The 240GB model did not have such an issue here, but the 120GB model definitely did. Because of this I've seen some users opting for the year-old C300 instead.

Also interestingly enough, if you look at this page of Anantech's review of the 256GB Crucial M4 (C400) you'll see that he stated "Random read performance is actually lower than on the C300. Crucial indicated that it reduced random read performance in favor of increasing sequential read performance on the m4. We'll see what this does to real world performance shortly." Does this signify that random read is not necessarily what accounts for a much more responsive OS?

When you look into all other scores, the Vertex 3 again does quite well, especially in the Vantage benchmarks. The only place where it suffers is the area most say is crucial. (see what I did there? ..I'm lame)
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post #2 of 19
Thread Starter 
Can anyone with a fair knowledge of SSD's chime in?

I'm sure a lot of people are questioning the same thing?
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post #3 of 19
Random read is when the SSD has to access a lot of... well, random information; that is, if you open multiple files/programs at once, or open a game that has to load many different maps/textures (prior to caching those), that's where you become aware of random read performance of that particular drive. It's an enormous plus to most SSDs out there right now, it just gets muddy once you start comparing random read performance between SSDs.
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post #4 of 19
Random reading is what your OS spends most of it's time doing and it IS what makes SSD's perform so much better than HDD's. So, yes, random read speed is a big deal.
Finally an update
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Finally an update
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post #5 of 19
Thread Starter 
I was speaking to someone on the OCZ forums, and he says that it's not just down to random speeds, but latency as well (which he says the vertex 3 excels in)..any thoughts on that?
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post #6 of 19
Thread Starter 
There was also another statement: "...I think we have reached the point where the random performance is so high that the responsiveness of the OS can't be increased with the SSD anymore, the rest must follow.

So, even with 1000000000 iops, the computer would not be faster in day to day usage."
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post #7 of 19
Sounds like a sales pitch.

Ugh, this is such horrible timing. I listed my laptop on ebay thinking I would be able to get an iPad 2 this week. No dice. Now I won't have a PC or a tablet, just a pile of components waiting for the SSD.

gdammit OCZ
post #8 of 19
Thread Starter 
After some researching I found some truth to the latency, I was also informed to take a look at the AS-SSD of drives. Now checking back with Anandtech's review, the AS-SSD shows the 120 V3 as top of the charts in read speeds, though not so much in writes.

This is interestingly the opposite of the Iometer, where it was much better in writes, and just poo in reads...

Someone just tell me if this drive will have fast OS "snappiness", boot times, and multitasking, that's all i really care for.
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post #9 of 19
Quote:
Originally Posted by Scytus View Post
Someone just tell me if this drive will have fast OS "snappiness", boot times, and multitasking, that's all i really care for.
Same here. All this sequential this and random that and 4k this and blablabla. I just want my PC to run as fast as possible. Please asvise.
post #10 of 19
Thread Starter 
Quote:
Originally Posted by FTC View Post
Same here. All this sequential this and random that and 4k this and blablabla. I just want my PC to run as fast as possible. Please asvise.
Exactly

I would just like some SSD Guru to tell me the best SSD choice for OS snappiness, boot times, and multitasking @ 120-128GB.
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