The difference in price and performance is more the memory type used. Not the controller. The controller only becomes a factor in high end products and synthetic benchmarks.
Tomshardware and most other review sites I have seen basically agrees with this. Most of the Sandforce drives perform much about the same as another- with the only exception or factor being the type of memory used. You can get a Sandforce controller in a $50 SSD or a $250 SSD- and while there is a performance difference the controller is not the reason.
Most ~ $50 64GB SSD's uses a cheaper memory, which accounts for it's very low everyday price. (I bought a Agility3 for $48)
Real world though.. it's probably tough to tell much difference between a $55 Agility3 and any other SSD of the same size. This would suggest the value at that price. In fact - some important benchmarks sometimes favor Sandforce based SSD drives over other controllers - The Agility is certainly a solid value. It's price is low and it's performance is not relative to it's price tag.
Size determines speed too. So you can assume a 120GB SSD should outperform a 60GB of the same variant. Bigger the SSD drive the faster the SSD drive.
As a further example using OCZ's popular line up: (I am familiar with it)
Above the cheapo $50 Agility3 I referenced above, OCZ makes the Vertex3 which is supposed to be a step up from Agility but still uses the same controller. The major difference I believe is the memory. Architecturally the Agility 3 is identical to the Vertex 3. You get the same controller running similar firmware, and as a result post similar peak performance stats.
But the Vertex3 does indeed outperform it in benchmarks. If it's not the controller causing this, and it's not the firmware - then it's the NAND. The Agility 3 (and Solid 3) both use asynchronous NAND.
Equipped with asynchronous NAND, the Agility 3's max performance is limited to 50MB/s per channel compared to 200MB/s per channel in the Vertex 3. The Vertex 3 doesn't come close to saturating its per-channel bandwidth so there's a chance that this change won't make much of a difference. To further tilt things in the Agility 3's favor, remember SandForce's controller throws away around 40% of all of your data thanks to its real time compression/deduplication algorithms - further reducing the NAND bandwidth requirements. When a Vertex 3 pushes 500MB/s that's not actual speed to NAND, it's just how fast the SF controller is completing its tasks. In a typical desktop user workload without too much in the way of incompressible data access, the Agility 3 should perform a lot like a Vertex 3.
I have a MAX IOPS Vertex3 in my main i7 Machine I use which also uses the same controller- but the NAND is different (better)
Not wanting to be completely married to Intel NAND production, OCZ wanted to introduce a version of the Vertex 3 that used 32nm Toshiba Toggle NAND - Rather than call the new drive a Vertex 3 with a slightly different model number, OCZ opted for a more pronounced suffix: MAX IOPS.
Like the regular Vertex 3, the Vertex 3 MAX IOPS drive is available in 120GB and 240GB configurations. These drives have 128GB and 256GB of NAND, respectively, with just under 13% of the NAND set aside for use as a combination of redundant and spare area.
The largest NAND die you could ship at 32/34nm was 4GB - the move to 25nm brought us 8GB die. What this means is that for a given capacity, the MAX IOPS edition will have twice as many MLC NAND die under the hood.
In terms of performance and SSD hierarchy it looks something like this:
#1. Top shelf = second-gen SandForce SSDs with Toggle NAND
#2. Samsung 830 SSD 256 GB and second-gen SandForce SSDs with Sync ONFi NAND
#3. Crucial m4 256 GB and OCZ Vertex 4 (not Sandforce controllers)
#4. second-gen SandForce SSDs with Async ONFi NAND (like Agility3)
Crucial M4's remain a good option for anyone that does not want a Sandforce controller in their SSD Drive. They perform well and sell for low street prices. Personally I like the Sandforce controllers. The performance is high and the price is low.
If your concerned with budget first- the Agility series probably performs real world very similar for a slightly lower price. Think $50-$60 for the 60GB
If your concerned with performance and also budget a Sandforce with Sync NAND is probably as cheap or cheaper than a Crucial M4 and a bit quicker. Real world it's not significant probably, but technically it's true.
A Vertex3 is a faster drive. The 60GB Vertex3 is only about $10 more. ($65-$74) The Vertex3 uses the superior NAND than the cheaper SSD's and that is why it is slightly more expensive. I would think a $64 Vertex3 is actually a better deal than a $55 Agility3 or like drive with cheaper NAND because the performance is higher for slight cost.
If your not really concerned with budget as much as performance- Look for Toggle NAND and Sandforce second gen controllers. These drives are among the fastest drives available today in any given GB size segment. This is the enthusiast performance option. Probably not for a HTPC.
Async NAND = CHEAP
Sync NAND = GOOD
Toggle = BEST
All are a decent option for a budget build- buy what you find a good deal on but know what the difference is.
The memory type is probably more important in terms of performance and price/value than the controller is.
Controller arguments are more bickering than anything. There is two groups- Group 1 loves the Sandforce Controllers for the LOW PRICE and HIGH PERFORMANCE. GROUP 2: Like the Crucial M4 and alternative controllers. They think the reliability might be higher and this is worth more than the performance downgrade or the higher price.
Your best value is probably a Sandforce controller drive - in the $50-$75 range with SYNC NAND. If your very budget limited look for an Async NAND model for under $50.
Don't you dare consider getting anything less than 60GB to try and save a buck. That is a stupid move.
most people that want the extra worry gone about reliability- but still want the Sandforce benefits should look close at the Intel 330. Intel is tops when your speaking about reliability. These are Sandforce based drives that perform well, sell for low value prices, and come with Intel's extra validation regarding reliability.
If your worried - spend another $10 on Intel is the best choice I think. It's a small sum and worth it to many.
Personally, I would save the cash or put it towards a larger size- but that is just me. I am not scared about reliability. Never had an issue with 15+ SSD's I own.
HOPE THAT HELPS
Originally Posted by Zon2020 The fact is, there are millions of 2281-based SSDs out there in circulation and the overwhelming majority work just fine (Mfusick owns about half of them
Old pic... but you get the idea.
My collection is larger now
Your Looking at this:http://www.newegg.com/Product/Produc...82E16820220581
It is $69 before the rebate and the specs are:
Sustained Sequential Read up to 270MB/s
Sustained Sequential Writeup to 230MB/s
You can also get a VERTEX 3 for $59 ARhttp://www.newegg.com/Product/Produc...82E16820227737
Max Sequential Read
Up to 535MB/s (SATA 6Gbps)
Max Sequential Write
Up to 480MB/s (SATA 6Gbps)
This Drive uses the SYNC ONFI NAND and has SATAIII
I would get SATAIII and the higher performance for the $10.