The Western Digital Black PCIe SSD (512GB) Review
by Billy Tallis on March 8, 2017 8:30 AM ESTAnandTech Storage Bench - The Destroyer
The Destroyer is an extremely long test replicating the access patterns of very IO-intensive desktop usage. A detailed breakdown can be found in this article. Like real-world usage and unlike our Iometer tests, the drives do get the occasional break that allows for some background garbage collection and flushing caches, but those idle times are limited to 25ms so that it doesn't take all week to run the test.
We quantify performance on this test by reporting the drive's average data throughput, a few data points about its latency, and the total energy used by the drive over the course of the test.
The WD Black's average data rate on The Destroyer is a little bit slower than the fastest SATA SSD of comparable capacity, and much faster than the Intel 600p. The Samsung 960 EVO is the only TLC-based SSD we've tested that outperforms the WD Black.
While the WD Black's average data rate didn't quite beat the best SATA SSDs, its average service time is substantially better than the Samsung 850 PRO, though nowhere close to most MLC PCIe SSDs.
The WD Black is no better than the Samsung 850 PRO at avoiding high-latency outliers above 100ms, but the WD Black has a significant advantage over all SATA SSDs at the 10ms threshold.
The WD Black's power efficiency during The Destroyer is poor, with total energy usage that is higher than almost all of its competitors.
Facebook
Twitter
RSS
36 Comments
View All Comments
jjj - Wednesday, March 8, 2017 - link
At least it beats the Intel lolSuch a pity that SSD makers are messing around with slow options.
As NAND prices rise, the controller becomes a smaller % of the costs so offering great perf per $ is easy, as long as you have the perf and they don't.
I do have a bit of an objection to the way you talk about the 960 EVO in your conclusions.
You haven't tested the 500GB version or at least it's not in the graphs or bench and it's hard to be accurate in estimating its perf due to the SLC cache. A review for it would be nice and maybe the very popular MyDigitalSSD.
Gothmoth - Wednesday, March 8, 2017 - link
slow options are not bad if they would give me 2 TB for 200$... :)but this is just crappy stuff.
jjj - Wednesday, March 8, 2017 - link
Slow options with PCIe x4 drives so these things that offer too little over SATA.They make sense for OEMs in laptop and SFF, lower mechanical volume but the opportunity to make a buck is bigger with faster drives right now.
ImSpartacus - Thursday, March 9, 2017 - link
Yeah, pcie drives busy doubt make sense for the budget market at the moment.It's just an unnecessary cost for a use case that doesn't need the extra benefit. 2.5" sata drives can get too cheap and are too versatile.
theuglyman0war - Sunday, March 12, 2017 - link
Whats everyone complaining about? It's a.... OOPs! Read the that 800MB/s as if that was 800GB size for $199..LOL! nevermind...
Samus - Thursday, March 9, 2017 - link
I'd as clueless as everyone else as to why non-3D TLC is even a thing, especially in a product not limited by SATA.Bruce427 - Monday, March 13, 2017 - link
** A review for it would be nice [on] the very popular MyDigitalSSD. **I agree. I have one of their 480GB BPX models ($187.32) in one of my PCs and I cannot tell much difference between it and the Samsung 512GB 950 Pro.
The MyDigitals are probably the best performing lower priced NVMe drives. They also have a 5 year warranty and huge endurance (TBW) ratings.
ATB - Sunday, April 1, 2018 - link
huge endurance? Looking at 256GB size (80TBW for the WD Black) in the same price range: Intel's 600P is at 144, Kingston's KC1000 is at 300 ant Plextor's M8Pe is at... 384!!! Which means that the life-span of the black is less than 1/4 of the M8Pe's :(Mathieu Bourgie - Wednesday, March 8, 2017 - link
Reading the introduction: 'In the SATA space SanDisk has made very effective use of their planar TLC and the SanDisk X400 and WD Blue are the best in their class. 'Sure, the Sandisk X400 is a leading TLC drive, but how is the WD Blue the best in its class (and what class is that?).
From your own review of the WD Blue SSD: 'Unfortunately, the WD Blue is slower than the X400 on most other tests' and it has a 3 years warranty instead of 5 years for the Sandisk X400.
highlnder69 - Wednesday, March 8, 2017 - link
Not sure who would want to Pre-Order such a horrible performing SSD.