Samsung 750 EVO series SSD – A true value and performance SSD
When Samsung released the 750 EVO series SSD some time back everyone was skeptical about the product as samsung already has one of the best products in th market the Samsung 850 EV0 series. The 850 EVO series was on 3D Nand and the yields for 3D Nand were quite limited. Samsung is th leader in the SSD market and wants to retain the leadership. To be able to get a cheaper product with higher performance was a key for them. Thus the released the Samsung 750 EVO series on Planar technology and not 3D nand which is more in mass production and cheaper to manufacture. The Samsung 750 EVO series comes int 2 flavours currently i.e. 120GB and 250GB.
The controller of these SSD’s is Samsung’s MDX controller, which is designed for low capacity and typical client PC usage patterns. Both drives features Samsung’s DRAM cache memory of 256MB DDR3. On the 120GB capacity, there is a single planar Samsung NAND flash module (K90Kgy8S7D), which boasts the whole 128GB capacity. This capacity is left with a usable space of about 112GB, which means the remainder is used for firmware and over provisioning. The 250GB capacity features two planar Samsung NAND flash modules, with the same model number, where each would hold 128GB in capacity. The 250GB capacity is left with 233GB of usable space, with of course the over provisioning and firmware accounted for. The Samsung 750 EVO can reach a sequential read speed of up to 540 MB/s and a sequential write speed of up to 520 MB/s, this is for both capacities. When it comes to random 4KB performance at 1 queue depth, we can expect to see 10,000 IOPS for read and 35,000 IOPS for write. The Samsung 850 is listed to reach just over this at 40,000 write IOPS. On top of this, the drive also feature AE 256-bit data security for Full Desk Encryption and is also a TCG/Opal v2.0 encrypted drive (IEEE1667). Samsung lists this drive to have a three year limited warranty, two years lesser than the Samsung 850 EVO , and lists the MTBF to 1.5 million hours for reliability. The endurance of this drive is listed bit lower than the Samsung 850 SSD, as the 120GB features up to 35 TBW (75TBW for the 850) and 70TBW for the 250GB (150TBW for the 850).
To sum it up for a end consumer you would get nearly the same speeds or performance on the Samsung 750 EVO series as compared to the Samsung 850 EVO series , only the endurance of th 850 EVO series is higher. This may not matter for most people who use their systems for basic usage. Yes the warranty is 3 years compared to 5 years of th 850 EVO series. We for see Samsung releasing the 750 EVO series in 500GB as well as 1TB favours in the future.
Recently Samsung corrected the pricing to be competitive and 120GB 750 EVO is available for as low as 2900 Rs and the 250GB 750 EVO series is available for as low as 5000 Rs at www.onlyssd.com and www.primeabgb.com