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post #21 of 31
Quote:
Originally Posted by maximus20895 View Post
I swear, I am going to make a post one of these days. The C300 is better.

OCZ, G. Skill, Corsair, ADATA, Muskin, OWZ and Patriot ..maybe more brands..are all the same SSD essential. They all have the Sandforce controller which really what determines the performance of the SSD. So they are the same thing with a different sticker more or less. The Sandforce drives are the 2nd best SSD out there right now. The best drive out there currently is the Crucial C300. It uses a Marvel controller. One thing that is different with the C300 and not with the Sandforce drives is that the IOPS and the write speed differ with capacity. The higher capacity the more IOPS and faster write speed you have with the C300.


Now, lets talk about speeds.
You have the advertised speeds which are sequential speeds. These are reads/writes that reach the speeds when you are reading/writing big files and advertisers use them since it is the fastest the SSD will go. The next speed are called the 4k speeds. These are much slower thant he sequential speeds, but the most important since your OS uses these reads/writes far more often than the sequential speeds. To be honest, the sequential speeds or really the speeds that are on the box are quite misleading.



The sequential speeds on the sandforce drives are faster than the C300, but that
is a pointless measurement when you will rarely use sequential speeds.
People who buy SSDs do not use these specific read/writes often at all.
What counts when picking out a SSD is the 4k read/writes and that is
where the C300 is superior than the sandforce. The 4k speeds are the
actual read/writes that people will use on an almost minute basis with
their SSDs unlike sequential read/writes which they will use far less
often.


The 4k speeds for any drive do not exceed Sata3G speeds and therefor it
is not needed to use a Sata6G interface with the C300. Yes, the C300
will get to Sata6g speeds, but that is only for sequential reads which I
mentioned earlier that users do not use sequential read/writes even
close to the amount of 4k writes which are far more used and far more
important.


The C300 is also SATA6G compliant, but to be honest, there isn't really a terrific SATA6G controller and in most cases the 4k speeds are slower when using a Sata6G
interface/controller simply because none have been well written/coded
etc. So while the Sata6G is nice it is not needed to have at all to get
the benefit of the C300 over the sandforce drives. It is just a bonus. Where the C300 dominates is at the 4k speeds!


There are hard drives out there that have a read/write speed over
100MB/s and now we are talking about SSDs having read/write speed of around
300MB/s. Okay, cool 3 times as fast. These are all sequential speeds
mind you which you will once again..rarely use.


When it really gets fun is when you are talking about the random 4k
speeds and what actually counts since you use those far more often. A
hard drive might reach 1MB/s read/write, but on the other hand the
sandforce reaches 20-25MB/s and the C300 reaches 28-3XMB/s. Now, that is
around 30 times faster than the traditional hard drive. While the C300
is just 5 or so MB/s faster than the sandforce you have got to remember
that this is being done many, many times over and over which broadens the speed difference.


This is why the C300 and in general SSDs are faster than hard drives
among other things such as IOPS and access time, but to wrap it all up
the C300 is faster than the Sandforce drives where it counts and that is the 4k read/writes.


I would rather have a SSD that is slower on sequential speeds that I
don't use and be faster than 4k which is something that I will use all
the time. We can even go into more detail about how sandforce compresses
data and how it slows it down drastically, but I wont get into that for
the time being.


So, stop telling people oh, the OCZ vertex has a speed of 285MB/s read and 275MB/s write where the C300 64GB has only 70MB/s write. That's fine and dandy, but I dont care about the sequential speeds since I rarely use those. I can about the 4k speeds and the C300 beats the Sandforce hands down.


I mentioned all of this because frankly, I am tired of putting just looking at the advertised speeds and immediately conclude that this drive is better than that drive. It isn't 100% their fault since the companies are kinda misleading when mentioned speeds that SSDs don't use often, but then again do some research.



I hope I have given some people advice and taught people to take the sequential speeds/advertised speeds with a grain of salt,pepper,cinnamon,spice and everything nice and do some research and learn the 4k speeds and how they effect/affect??? the total performance of the SSD.
My C300 does 30mbps AVERAGE on 4k's!!!! Nuff said.
Edited by Jonesey I7 - 12/23/10 at 7:10am
    
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post #22 of 31
Quote:
Originally Posted by ellisbodds;11750165 
Oh ok.

Lol, I was joking. But I'm still not sure.

Right, now I can see why 4K usage will be a lot more important for an SSD. All the little system files and files which go with programs will load quicker in this case.

Also, bear in mind I am only talking about the 60-64GB here. I think you knew this already, just mentioning it again though.

The C300 has the same read speed regardless of what capacity, it is only the write and IOPS that differ smile.gif

Thanks everyone else for the kind words applaud.gif
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post #23 of 31
Here are the C300 64GB results on a SATA 6Gb/s.

http://www.overclock.net/11408291-post831.html
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post #24 of 31
Thread Starter 
Quote:
Originally Posted by saint19 View Post
Here are the C300 64GB results on a SATA 6Gb/s.

http://www.overclock.net/11408291-post831.html
Thanks, but:

1. What is "4K-64Thrd" ?

2. What are good 4K speeds to be looking for?

3. Are the sequential write speeds really not that important?

Because the Sandforce drives have over 3x the write speeds, seems like a big difference to me even if it's not the most important speed.
post #25 of 31
Quote:
Originally Posted by ellisbodds View Post
Thanks, but:

1. What is "4K-64Thrd" ?

2. What are good 4K speeds to be looking for?

3. Are the sequential write speeds really not that important?

Because the Sandforce drives have over 3x the write speeds, seems like a big difference to me even if it's not the most important speed.
How often do you write files larger than 200MB or so?
post #26 of 31
Good 4k speeds are 25+MB/s, 30+ is ideal.
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post #27 of 31
Quote:
Originally Posted by maximus20895 View Post
Good 4k speeds are 25+MB/s, 30+ is ideal.
maximus, great post! didnt quote that cuz of length..
would you still recommend the c300 over the SFs even in the 64gb version (lowest write speeds)?
post #28 of 31
Quote:
Originally Posted by templar View Post
maximus, great post! didnt quote that cuz of length..
would you still recommend the c300 over the SFs even in the 64gb version (lowest write speeds)?
I recommend it and I'm pretty sure that maximus will do the same.
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post #29 of 31
Quote:
Originally Posted by templar View Post
maximus, great post! didnt quote that cuz of length..
would you still recommend the c300 over the SFs even in the 64gb version (lowest write speeds)?
Yes, you do far more reading than writing..especially for an OS drive. The 4k speeds are still good
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post #30 of 31
Quote:
Originally Posted by maximus20895 View Post
Yes, you do far more reading than writing..especially for an OS drive. The 4k speeds are still good
Great, then my choice is far easier than I thought it would be.
Thx guys
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