So Samsung have recently had their 2013 Samsung SSD Global Summit. There they announced their new SSD's in the 840 line, the 840 Evo. It appears that it is meant to sit in between the 840 and the 840 Pro.
So it is to come in five different capacities. 120GB, 250GB, 500GB, 750GB and 1000GB.
It is using 19nm NAND memory, and Samsung's multicore MEX controller. Depending on the capacities, Samsung claims the Evo may double or triple the current performance of the 840. Depending on the capacity, we could see 520MB/s seq. writes, and 540MB/s seq. reads, as well as 98,000 IOPS read, and 90,000 IOPS write,
Samsung have added a new feature, known as TurboWrite. It uses a buffer from 3GB on the smallest model to 12GB on the largest. In sequential writes, they saw a jump from 140MB/s to 410MB/s on the 120GB just by enabling TurboWrite. On the 250GB we see 270MB/s to 520MB/s and on the 750GB we see 420MB/s to 520MB/s.
"Much like that of SanDisk’s nCache, Samsung’s TurboWrite Technology dedicates a certain portion of NAND flash memory to simulate SLC memory, which in turn becomes a pure write buffer that caches all incoming writes. The stored data subsequently completes its storage trip to the memory during idle time and, should the buffer become full prior to this, data is routed directly to the main memory as required. The amount of memory dedicated to TurboWrite varies, depending on SSD capacity, the 840 EVO 1TB SSD having a massive 12GB TurboWrite buffer." -TheSSDReview
Now, for what will make or break this drive: the pricing. (USD)
120GB $109.99 $0.91/GB
250GB $189.99 $0.76/GB
500GB $369.99 $0.74/GB
750GB $529.99 $0.71/GB
1000GB $629.99 $0.65/GB
These will be available for purchase in August.
Check my other post on the 840 Evo replacing the Pro, and the possibility of a Pro refresh.
Information sourced from AnandTech, Tom's Hardware, TechRadar and Engadget.
Edit: I don't think anyone's posted about this here, my search for "840 Evo" came up blank. I'm new to the forums and I didn't see anything scrolling through, but if there is already a post, feel free to delete this one.