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
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
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.
Edited by Jonesey I7 - 12/23/10 at 7:10am