• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

WD Black SN850 1 TB SSD

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
21,730 (3.54/day)
Processor Core i7-8700K
Memory 32 GB
Video Card(s) RTX 3080
Display(s) 30" 2560x1600 + 19" 1280x1024
Software Windows 10 64-bit
The WD Black SN850 is the fastest SSD we ever tested thanks to support for the fast PCI-Express 4.0 interface. In our extensive real-life testing it beats the Samsung 980 Pro, the Phison E18-based Corsair MP600 Pro, and even the MLC-based Samsung 970 Pro.

Show full review
 
Joined
Feb 14, 2012
Messages
2,081 (0.63/day)
System Name msdos
Processor 8086
Motherboard mainboard
Cooling passive
Memory 640KB + 384KB extended
Video Card(s) EGA
Storage 5.25"
Display(s) 80x25
Case plastic
Audio Device(s) modchip
Power Supply 45 watts
Mouse serial
Keyboard yes
Software disk commander
Benchmark Scores still running
ADATA is the winner at 87% perf and 211% value.
 
Joined
Jul 10, 2015
Messages
518 (0.25/day)
Location
Sokovia
System Name Alienation from family
Processor i7 7700k
Motherboard Hero VIII
Cooling Macho revB
Memory 16gb Hyperx
Video Card(s) Asus 1080ti Strix OC
Storage 960evo 500gb
Display(s) AOC 4k
Case Define R2 XL
Power Supply Be f*ing Quiet 600W M Gold
Mouse NoName
Keyboard NoNameless HP
Software You have nothing on me
Benchmark Scores Personal record 100m sprint: 60m
Joined
Nov 4, 2019
Messages
215 (0.44/day)
System Name The RTX 3070 Build!
Processor Ryzen 5600X
Motherboard Asus B550M Prime
Cooling Arctic 33 Cooler All Black
Memory Patriot DDR4 3200 C16
Video Card(s) Gigabyte RTX 3070 Eagle
Storage 1TB Western Digital SN850, the fastest drive available, 1TB SN550
Display(s) LG Nano85 50" 4K/120hz TV/monitor
Case Thermaltake S100 Black
Audio Device(s) Logitech 2.1 THX
Power Supply Cooler Master 550W Gold Fully Modular
Mouse Logitech G403
Keyboard Logitech G213
This is my favorite SSD. I've bought many and it runs really well and I haven't had the overheating problems I've had with other high end models.
 
Joined
Dec 21, 2018
Messages
36 (0.04/day)
is this SSD TCG Opal 2.0 compliant?
Probably not. Only the CL (Commercial) models usually support TCG Opal 2.0. There is no SN850 commercial counterpart yet. Probably sooner rather than later though.
 
Joined
Nov 20, 2015
Messages
38 (0.02/day)
Joined
Jul 31, 2014
Messages
118 (0.05/day)
System Name Crappy POS
Processor Ryzen 3600
Motherboard MSI B450M Mortar Ti
Cooling Deepcool Gammaxx GTE
Memory Micron 32GB DDR4-3200 E-die @ 3600C16
Video Card(s) MSI RTX 2060 Super Armor OC
Storage HP EX920 1TB, SX8200 Pro 2TB, Micron 1100 2TB, Crucial M550 1TB, Maxtor Z1 1TB
Display(s) Acer XB271HU @ 150Hz
Audio Device(s) JBL LSR305 + Topping D10
Power Supply Seasonic Focus+ 850W
I never thought to see WD (sandisk) beat Samsung SSDs in performance but here we are

The SN850 1TB is priced the same as a 970 Evo from where I at, and the 970/980 Pro is even more expensive.
 
Joined
Dec 6, 2020
Messages
68 (0.74/day)
Why test this SSD on an out of date bios and old Agesa code?

Apart from that, pretty good review :)

My SN850 is DOA, RMA in progress due to low write speeds: WD SN850 Slower than expected performance | TechPowerUp Forums

Benchmark consistency. Every time you change anything about your bench rig, you'll have to rebench all your comparison hardware (SSDs) in that case as identical performance behavior cannot be guaranteed between different versions of software.
Or these drives are bugged on newer agesa code and chipset, that's my conspiracy theory :)
 
Last edited:
Joined
Feb 21, 2006
Messages
1,004 (0.18/day)
Location
Toronto, Ontario
System Name The Expanse
Processor AMD Ryzen 7 5800X
Motherboard Asus Prime X570-Pro BIOS 3405 AM4 AGESA V2 PI 1.2.0.0
Cooling Corsair H150i Pro
Memory 16GB Gskill Trident RGB DDR4-3200 14-14-14-34-1T
Video Card(s) GIGABYTE Radeon RX 580 GAMING 8GB
Storage Corsair MP600 1TB PCIe 4 / Samsung 860Evo 1TB x2 Raid 0 / Asus NAS AS1004T V2 12TB
Display(s) HP ZR24w + LG 24MB35 on Neo-Flex® Dual Monitor Lift Stand
Case Fractal Design Meshify S2
Audio Device(s) Creative X-Fi + Logitech Z-5500
Power Supply Corsair AX850 Titanium
Mouse Corsair Dark Core RGB
Keyboard Logitech G810
Software Windows 10 Pro x64 20H2
Benchmark Scores 3800X https://valid.x86.fr/1zr4a5 5800X https://valid.x86.fr/1bigrn
Drive is fast but man does she run hot.

Any chance you get the version with a heatsink in for testing?
 
Joined
Nov 11, 2004
Messages
7,637 (1.28/day)
Location
Formosa
System Name Overlord Mk MXVI
Processor AMD Ryzen 7 3800X
Motherboard Gigabyte X570 Aorus Master
Cooling Corsair H115i Pro
Memory 32GB Viper Steel 3600 DDR4 @ 3800MHz 16-19-16-19-36
Video Card(s) Gigabyte RTX 2080 Gaming OC 8G
Storage 1TB WD Black NVMe (2018), 2TB Viper VPN100, 1TB WD Blue 3D NAND
Display(s) Asus PG27AQ
Case Corsair Carbide 275Q
Audio Device(s) Corsair Virtuoso SE
Power Supply Corsair RM750
Mouse Logitech G502 Lightspeed
Keyboard Wooting Two
Software Windows 10 Pro
Benchmark Scores https://valid.x86.fr/33u9si
Why test this SSD on an out of date bios and old Agesa code?

Apart from that, pretty good review :)

My SN850 is DOA, RMA in progress due to low write speeds: WD SN850 Slower than expected performance | TechPowerUp Forums


Or these drives are bugged on newer agesa code and chipset, that's my conspiracy theory :)
First of all, you're clearly not a reviewer, nor even capable of providing necessary information when asking questions, so in your thread, we have to ask you questions to try to solve your problem. Benchmarking systems stay the same, for a very long time, or you end up having to start over from scratch, as all parameters are no longer the same and this means you have to re-test everything if you don't want to start from a clean sheet.

Secondly, DOA doesn't mean what you think. It means Dead on Arrival, i.e. it never worked. Your drive clearly worked, you just found one of the odd glitches that happens with SSDs at times. I also informed you I had a similar problem, but I can't remember exactly what solved it, as it was a couple of years ago. It's not a faulty drive.

And you're drawing conclusions based on your one drive experience, which makes it a flawed conclusion.

You clearly don't know much about hardware when you admit you don't even know how to format a drive with different sector sizes. If you're going to bash @W1zzard for how he reviews things, then you better be at his level or better at what he's doing.
 

jixgtt

New Member
Joined
Aug 28, 2020
Messages
6 (0.03/day)
Why does the SLC cache flush as soon as the drive stops writing?
 

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
21,730 (3.54/day)
Processor Core i7-8700K
Memory 32 GB
Video Card(s) RTX 3080
Display(s) 30" 2560x1600 + 19" 1280x1024
Software Windows 10 64-bit
Why does the SLC cache flush as soon as the drive stops writing?
It flushes all the time, in background. If you take write load off the drive for a second, that’s 1 second of idle time in which it can flush the cache at multiple gb/s, freeing up tons of slc capacity each second.

does that make sense?

Why test this SSD on an out of date bios and old Agesa code?
I change hardware and software like once per year for the ssd rig. Obviously i don’twant to mix old and new data and then make comparisons.

there’s nothing to be gained from upgrading bios drivers or software at this time, so why invalidate all my data and spend a month full time doing nothing but retesting current drives for new comparison data? You are free to come visit and help me with benchmarking.
 
Last edited:
Joined
Oct 17, 2014
Messages
5,780 (2.48/day)
Location
USA
System Name Paladius Tacet
Processor Ryzen 5600x - 1,270v 4.5ghz all core
Motherboard MSI X570 Tomahawk + SAM Enabled
Cooling Arctic Freezer 34 DUO (aggressive fan curve)
Memory G.Skill 2x16 4000 CAS 16 Dual Rank 2000:1 IF
Video Card(s) Navi 6800 + Auto OC gpu core
Storage 2TB SSD
Display(s) Acer Nitro XF243Y 23.8" 0.5ms IPS 165hz 1080p
Case Corsair 110Q Silent + NZXT Aer-P exhaust fan
Audio Device(s) SennHD58X, Schiit Asgard 2 AMP, Modi 3 DAC
Power Supply EVGA 700w Gold
Mouse Logitech G502 Hero SE
Keyboard Logitech Cherry Mx Red
You are free to come visit and help me with benchmarking.

Just let me know when you have your spare couch ready for me. :roll:
 

low

New Member
Joined
Aug 4, 2019
Messages
19 (0.03/day)
Lets say we change the test system to intel 5,2ghz, DDR4-4000 Cl17 and PCI-E 3.0. The gaming benchmarks are somehow limited, maybe cpu+memory.
 
Joined
Dec 6, 2020
Messages
68 (0.74/day)
ystem to intel 5,2ghz, DDR4-4000 Cl17 and PCI-E 3.0. Th
It flushes all the time, in background. If you take write load off the drive for a second, that’s 1 second of idle time in which it can flush the cache at multiple gb/s, freeing up tons of slc capacity each second.

does that make sense?


I change hardware and software like once per year for the ssd rig. Obviously i don’twant to mix old and new data and then make comparisons.

there’s nothing to be gained from upgrading bios drivers or software at this time, so why invalidate all my data and spend a month full time doing nothing but retesting current drives for new comparison data? You are free to come visit and help me with benchmarking.
Hi Wizzard,
I agree their is nothing to be gained, but what is interesting for your viewers is if there is something to be lost when using newer hardware code.
:)
 
Last edited:
Joined
Feb 20, 2020
Messages
1,544 (4.04/day)
Location
Texas
System Name Ghetto Rigs x299 & z490 & Q9550 Old timer
Processor 9940x with optimus sigV2 & 10900k with optimus foundation & Q9550 with EK Evo
Motherboard X299 Rampage VI Apex & z490 Maximus XII Apex & Acer WG43M
Cooling D5 combo/280 GTX/ VRM water block copper/280 GTX/ D5 Top/Optimus sigV2/TitanXp/Mora 360x2
Memory Trident-Z 3600C16 4x8gb & Trident-Z 3600c16 2x8gb & 4x2gb crucial
Video Card(s) Titan Xp & 1080ti ftw3 & evga 980ti
Storage 970 evo plus 500gb & 970 evo 500gb many 2.5" ssd's and WD BLK hdd's
Display(s) 1-AOC G2460PG 24"G-Sync 144Hz/ 2nd 1-ASUS VG248QE 24"/ 3rd LG 43" series
Case D450 second floor for 2nd rad x2/ Cherry Entertainment center
Audio Device(s) Built in Realtek x2 with Insignia 2.0 sound bars & 1-LG sound bar
Power Supply evga 1200P2 & 1000P2 with APC AX1500 & 850P2 & CyberPower-GX1325U
Mouse Redragon Perdition x3
Keyboard G910 & G710+x2
Software Win-7 pro x3 and Linux Cinnamon 20.1x2 & win-10 pro x3
Hi,
Always got the black series on hdd's too bad intel/ asus hasn't gone pci-e 4 yet.
You can always assume an m.2 needs a heatsink :cool:
 
Joined
Dec 6, 2020
Messages
68 (0.74/day)
Full Specs:

Code:
root@PartedMagic:~# nvme id-ctrl /dev/nvme0n1 -H | more
NVME Identify Controller:
vid       : 0x15b7
ssvid     : 0x15b7
sn        :
mn        : WDS100T1X0E-00AFY0                   
fr        : 611110WD
rab       : 4
ieee      : 001b44
cmic      : 0
  [3:3] : 0    ANA not supported
  [2:2] : 0    PCI
  [1:1] : 0    Single Controller
  [0:0] : 0    Single Port

mdts      : 7
cntlid    : 0x2020
ver       : 0x10400
rtd3r     : 0x7a120
rtd3e     : 0xf4240
oaes      : 0x200
[27:27] : 0    Zone Descriptor Changed Notices Not Supported
[14:14] : 0    Endurance Group Event Aggregate Log Page Change Notice Not Supported
[13:13] : 0    LBA Status Information Notices Not Supported
[12:12] : 0    Predictable Latency Event Aggregate Log Change Notices Not Supported
[11:11] : 0    Asymmetric Namespace Access Change Notices Not Supported
  [9:9] : 0x1    Firmware Activation Notices Supported
  [8:8] : 0    Namespace Attribute Changed Event Not Supported

ctratt    : 0x2
  [9:9] : 0    UUID List Not Supported
  [7:7] : 0    Namespace Granularity Not Supported
  [5:5] : 0    Predictable Latency Mode Not Supported
  [4:4] : 0    Endurance Groups Not Supported
  [3:3] : 0    Read Recovery Levels Not Supported
  [2:2] : 0    NVM Sets Not Supported
  [1:1] : 0x1    Non-Operational Power State Permissive Supported
  [0:0] : 0    128-bit Host Identifier Not Supported

rrls      : 0
cntrltype : 1
  [7:2] : 0    Reserved
  [1:0] : 0x1    I/O Controller
fguid     :
crdt1     : 0
crdt2     : 0
crdt3     : 0
oacs      : 0x17
  [9:9] : 0    Get LBA Status Capability Not Supported
  [8:8] : 0    Doorbell Buffer Config Not Supported
  [7:7] : 0    Virtualization Management Not Supported
  [6:6] : 0    NVMe-MI Send and Receive Not Supported
  [5:5] : 0    Directives Not Supported
  [4:4] : 0x1    Device Self-test Supported
  [3:3] : 0    NS Management and Attachment Not Supported
  [2:2] : 0x1    FW Commit and Download Supported
  [1:1] : 0x1    Format NVM Supported
  [0:0] : 0x1    Security Send and Receive Supported

acl       : 4
aerl      : 7
frmw      : 0x14
  [4:4] : 0x1    Firmware Activate Without Reset Supported
  [3:1] : 0x2    Number of Firmware Slots
  [0:0] : 0    Firmware Slot 1 Read/Write

lpa       : 0x1e
  [4:4] : 0x1    Persistent Event log Supported
  [3:3] : 0x1    Telemetry host/controller initiated log page Supported
  [2:2] : 0x1    Extended data for Get Log Page Supported
  [1:1] : 0x1    Command Effects Log Page Supported
  [0:0] : 0    SMART/Health Log Page per NS Not Supported

elpe      : 255
npss      : 0
avscc     : 0x1
  [0:0] : 0x1    Admin Vendor Specific Commands uses NVMe Format

apsta     : 0
  [0:0] : 0    Autonomous Power State Transitions Not Supported

wctemp    : 357
cctemp    : 361
mtfa      : 50
hmpre     : 0
hmmin     : 0
tnvmcap   : 1000204886016
unvmcap   : 0
rpmbs     : 0
[31:24]: 0    Access Size
[23:16]: 0    Total Size
  [5:3] : 0    Authentication Method
  [2:0] : 0    Number of RPMB Units

edstt     : 102
dsto      : 1
fwug      : 1
kas       : 0
hctma     : 0x1
  [0:0] : 0x1    Host Controlled Thermal Management Supported

mntmt     : 273
mxtmt     : 357
sanicap   : 0x60000002
  [31:30] : 0x1    Media is not additionally modified after sanitize operation completes successfully
  [29:29] : 0x1    No-Deallocate After Sanitize bit in Sanitize command Not Supported
    [2:2] : 0    Overwrite Sanitize Operation Not Supported
    [1:1] : 0x1    Block Erase Sanitize Operation Supported
    [0:0] : 0    Crypto Erase Sanitize Operation Not Supported

hmminds   : 0
hmmaxd    : 0
nsetidmax : 0
endgidmax : 0
anatt     : 0
anacap    : 0
  [7:7] : 0    Non-zero group ID Not Supported
  [6:6] : 0    Group ID does not change
  [4:4] : 0    ANA Change state Not Supported
  [3:3] : 0    ANA Persistent Loss state Not Supported
  [2:2] : 0    ANA Inaccessible state Not Supported
  [1:1] : 0    ANA Non-optimized state Not Supported
  [0:0] : 0    ANA Optimized state Not Supported

anagrpmax : 0
nanagrpid : 0
pels      : 1
sqes      : 0x66
  [7:4] : 0x6    Max SQ Entry Size (64)
  [3:0] : 0x6    Min SQ Entry Size (64)

cqes      : 0x44
  [7:4] : 0x4    Max CQ Entry Size (16)
  [3:0] : 0x4    Min CQ Entry Size (16)

maxcmd    : 0
nn        : 1
oncs      : 0x5f
  [8:8] : 0    Copy Not Supported
  [7:7] : 0    Verify Not Supported
  [6:6] : 0x1    Timestamp Supported
  [5:5] : 0    Reservations Not Supported
  [4:4] : 0x1    Save and Select Supported
  [3:3] : 0x1    Write Zeroes Supported
  [2:2] : 0x1    Data Set Management Supported
  [1:1] : 0x1    Write Uncorrectable Supported
  [0:0] : 0x1    Compare Supported

fuses     : 0
  [0:0] : 0    Fused Compare and Write Not Supported

fna       : 0
  [2:2] : 0    Crypto Erase Not Supported as part of Secure Erase
  [1:1] : 0    Crypto Erase Applies to Single Namespace(s)
  [0:0] : 0    Format Applies to Single Namespace(s)

vwc       : 0x7
  [2:1] : 0x3    The Flush command supports NSID set to FFFFFFFFh
  [0:0] : 0x1    Volatile Write Cache Present

awun      : 0
awupf     : 0
icsvscc     : 1
  [0:0] : 0x1    NVM Vendor Specific Commands uses NVMe Format

nwpc      : 0
  [2:2] : 0    Permanent Write Protect Not Supported
  [1:1] : 0    Write Protect Until Power Supply Not Supported
  [0:0] : 0    No Write Protect and Write Protect Namespace Not Supported

acwu      : 0
ocfs      : 0
sgls      : 0
[1:0]  : 0    Scatter-Gather Lists Not Supported

mnan      : 0
subnqn    : nqn.2018-01.com.wdc:nguid:E8238FA6BF53-0001-001B448B49D849B0
ioccsz    : 0
iorcsz    : 0
icdoff    : 0
ctrattr   : 0
  [0:0] : 0    Dynamic Controller Model

msdbd     : 0
ps    0 : mp:9.00W operational enlat:0 exlat:0 rrt:0 rrl:0
          rwt:0 rwl:0 idle_power:0.6300W active_power:9.00W
 

jixgtt

New Member
Joined
Aug 28, 2020
Messages
6 (0.03/day)
It flushes all the time, in background. If you take write load off the drive for a second, that’s 1 second of idle time in which it can flush the cache at multiple gb/s, freeing up tons of slc capacity each second.

does that make sense?
I can guess that there is some fixed, internal rate for flushing the cache.

Of course, when you momentarily stop the write activity, the SLC cache will free up capacity immediately, so full write rates are available as soon as you give the drive a moment to settle down.
Newer TLC drives use part of their capacity in SLC mode for increased performance.
I read the article as flushing 277GB instantly. I thought that might be possible if those cells were toggled to TLC and others switched to SLC. I wasn't sure what exactly was meant.

My question is answered.
 
Joined
Jul 10, 2015
Messages
518 (0.25/day)
Location
Sokovia
System Name Alienation from family
Processor i7 7700k
Motherboard Hero VIII
Cooling Macho revB
Memory 16gb Hyperx
Video Card(s) Asus 1080ti Strix OC
Storage 960evo 500gb
Display(s) AOC 4k
Case Define R2 XL
Power Supply Be f*ing Quiet 600W M Gold
Mouse NoName
Keyboard NoNameless HP
Software You have nothing on me
Benchmark Scores Personal record 100m sprint: 60m
How much would true all SLC 500gb ssd pcie5 next gen cost?
 
Joined
Nov 11, 2004
Messages
7,637 (1.28/day)
Location
Formosa
System Name Overlord Mk MXVI
Processor AMD Ryzen 7 3800X
Motherboard Gigabyte X570 Aorus Master
Cooling Corsair H115i Pro
Memory 32GB Viper Steel 3600 DDR4 @ 3800MHz 16-19-16-19-36
Video Card(s) Gigabyte RTX 2080 Gaming OC 8G
Storage 1TB WD Black NVMe (2018), 2TB Viper VPN100, 1TB WD Blue 3D NAND
Display(s) Asus PG27AQ
Case Corsair Carbide 275Q
Audio Device(s) Corsair Virtuoso SE
Power Supply Corsair RM750
Mouse Logitech G502 Lightspeed
Keyboard Wooting Two
Software Windows 10 Pro
Benchmark Scores https://valid.x86.fr/33u9si

W1zzard

Administrator
Staff member
Joined
May 14, 2004
Messages
21,730 (3.54/day)
Processor Core i7-8700K
Memory 32 GB
Video Card(s) RTX 3080
Display(s) 30" 2560x1600 + 19" 1280x1024
Software Windows 10 64-bit
Top