The basic architecture of the controller hasn't changed.
The 840 Pro should sell for a 25 - 30 premium over the current 830.Prices were high and performance was low.Update 2: It looks like this may have been a firmware issue.Despite the use of TLC nand, Samsung claims the vanilla 840 should offer similar performance to the current 830.Block and page sizes remain the same for 2bpc MLC 21nm nand, and maximum capacity per die is still 8GB.While the first generation couldn't be recommended, the Samsung SSD 470 could.When we first encountered Samsung MLC drives a few years ago they were pretty bad.It still wasn't our favorite drive, but it finally brought performance up to a reasonable level.Transfer SizeAnandTech Storage Bench 2011AnandTech Storage Bench 2011 - Light WorkloadPCMark 7, Performance over Time trimpower ConsumptionFinal Words.
Sequential Write 400MB/s 450MB/s, random Read 80K iops 100K iops, random Write 36K iops 78K iops, active Power Use.24W.068W, idle Power Use.14W.042W.
If we had an award for most improved in the SSD space, it would have to go to Samsung.
Samsung had all of the right pieces for success however.
While the 830 used Samsung's 27nm MLC nand, the 840 Pro uses Samsung's latest 21nm MLC nand.
Update: My replacement 840 Pro also died, I have shipped both drives back to Samsung and are waiting for their analysis of the failures.Although the first Samsung SSDs weren't very good, they got better over time.Controller, dRAM Size, dRAM Speed, corsair Neutron GTX lamd LM87800 256MB DDR2-800 Crucial m4 Marvell 88SS9174 256MB DDR3-667 Intel SSD 320 Intel X25-M G3 64MB SDR-166 Intel SSD 520 SandForce SF-2281 0MB - OCZ Vertex 4 Indilinx Everest 2 512MB/1GB DDR3-800 Samsung SSD 830 Samsung.The vanilla 840 on the other hand will boast more spare area (likely to help manage endurance on the TLC nand) and will launch at 120GB, 250GB and 500GB capacities as a result.The move to 21nm will eventually drive nand pricing lower, although today Samsung expects price parity between the TLC equipped 840 and the old MLC 830.Unfortunately we don't have samples of the unique TLC SSD 840, just the MLC 840 Pro.The first Samsung MLC SSDs were reliable, they just weren't worth the money when you had much better options from companies like Intel.Like Intel, taglio capelli frangia scalata Samsung made its own nand, controller and wrote its own firmware.Costs, get it by Mon, Jul 16 - Wed, Jul 25 from New York,.Brand new: lowest price 290.00.41 Addl.Samsung SSD 830 (bottom) Both drives will be available on October 15th, however in advance of the release Samsung provided us with a beta sample for review.Although the controller supports up to 1TB of nand, Samsung believes that the ultra-high-density nand required to hit 1TB is too cost prohibitive at this point.This isn't the first time we've had an SSD die during our test process, pretty much every company has seen a failure during one of our reviews, but despite Samsung's excellent track record even it isn't immune from early issues.We were only able to get a 256GB 840 Pro initially but we've already asked Samsung for additional capacities.