How many times have we heard that the there is no more performance left than can be derived from the SATA III interface? We hear it all the time, and we have been hearing it for a long time. It seems that people making that statement are focusing on one thing only, sequential speeds. Sequential speeds are part of the equation to be sure, but there is much more to the overall performance of an SSD than just the sequential speeds that everyone seems to focus on.
Since it launched, Samsung's 2TB 850 EVO has worn the crown as TweakTown's consumer SATA III performance champion. The 850 EVO employs Samsung's 3D-TLC flash, called "V-NAND." Samsung's 850 EVO is such a good performer that the standard line for other SATA-based SSDs has become, "It is fast, but not EVO fast."
One of the key features that facilitates the EVO's blistering performance is Samsung's pSLC caching technology. Samsung calls their proprietary pseudo SLC caching technology "TurboWrite." Others employ pSLC caching to boost burst performance, but nothing to date has been able to deliver the goods as well as "TurboWrite."
Due to superior architecture, Samsung's EVO Series SSDs are the only TLC-based SSDs that can deliver performance that rivals that of MLC-based SSDs. In fact, the 850 EVO not only rivals the performance of non-Samsung MLC SSDs but for the most part, it delivers superior performance.
We are starting to see non-Samsung 3D-TLC flash SSDs arrive on the scene almost daily, but they all have one thing in common - they are all first-generation 3D-TLC flash products. Samsung's current 48-layer 256Gbit VNAND is their third-generation 3D flash. Samsung's V-NAND is much more refined than their competitors 3D-flash and that gives Samsung the significant performance advantage that they currently enjoy.
Circling back to our earlier statement, that there is much more to maxing out the performance of the SATA III interface than just sequential performance, brings us back to the 4TB 850 EVO. The ONLY weakness we have seen from the 850 EVO to this point has been heavy workload steady-state performance. Samsung has taken note of this as well, and with the 4TB EVO this final frontier has been conquered in spectacular fashion, as you will see when we get to our heavy workload testing.
Simply stated, Samsung's 4TB 850 EVO is not only the highest capacity consumer SSD ever made, it is also the fastest SATA III SSD ever made, even eclipsing the performance of Samsung's own 2TB 850 Pro. With the performance and endurance the 4TB EVO has to offer, we really see no reason for Samsung to continue forward with new iterations of MLC-based SATA III SSDs.
Samsung 850 EVO 4TB SATA III SSD:
- Sequential Read: up to 540 MB/s
- Sequential Write: up to 520 MB/s
- Max 4K Random Read Speed: up to 98,000 IOPS
- Max 4K Random Write Speed: up to 90,000 IOPS
- Max 4K QD1 Random Read Speed: up to 10,000 IOPS
- Max 4K QD1 Random Write Speed: up to 40,000 IOPS
- Endurance: 300TBW
- MTTF: 1.5 Million Hours
- Warranty: 5-Year Limited Warranty
- Active Power Consumption: 3.6W Avg.
- DevSlp: 10mW
- Garbage Collection
- Software: Magician, Migration
PRICING: You can find the Samsung 850 EVO 4TB SATA III SSD for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link below to see real-time pricing for the best deal:
United States: The Samsung 850 EVO 4TB SATA III SSD retails for $1380 at Amazon.
United Kingdom: The Samsung 850 EVO 4TB SATA III SSD retails for £1230 at Amazon UK.
- Page 1 [Introduction, Specifications, Pricing & Availability]
- Page 2 [Drive Details]
- Page 3 [Test System Setup and Properties]
- Page 4 [Synthetic Benchmarks - ATTO & Anvil's]
- Page 5 [Synthetic Benchmarks - CDM & AS SSD]
- Page 6 [Benchmarks (Trace, OS Volume) - Vantage, PCMark 7 & PCMark 8]
- Page 7 [Benchmarks (Secondary) - IOPS, Response & Transfers]
- Page 8 [Benchmarks (Secondary) – PCMark 8 Extended]
- Page 9 [Benchmarks (Secondary) – 70/30 Mixed Workload]
- Page 10 [Maxed-Out Performance (MOP)]
- Page 11 [Final Thoughts]
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