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Western Digital · PCIe 4.0 · 1000 GB

WD_BLACK 1TB SN770

M.2 2280 · TLC NAND · Host-Memory-Buffer (HMB)

Performance
66
Perf / price
29
Capacity value
29
Amazon
$340
WD_BLACK 1TB SN770
View WD_BLACK 1TB SN770 Gallery in high resolution
$340
Not currently available Updated Aug 16, 2026
Performance65.6
Performance / price29.0
Capacity value29.0
$340 on Amazon Add this SSD to a build Compare this SSD SSD table

Written analysis

WD_BLACK 1TB SN770 at a glance

The WD_BLACK 1TB SN770 is a 1000 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 1.4. The controller is Polaris MP16+. Flash type is TLC 112-layer. Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 5150 MB/s read and 4900 MB/s write. Random throughput is 740K read IOPS and 800K write IOPS. The calculated specification score is 65.6.

Best fit: General storage workloads where compatibility and price matter more than peak transfer rates.

Endurance and thermals

Rated endurance is 600 TBW, or approximately 600 TBW per TB of capacity. The listed warranty is 5 years. Active power is listed at 4.6 W, with 1.0 W idle. Check the drive and motherboard guidance to determine whether a heatsink is recommended for sustained transfers.

Current value

At $340, the drive costs $340.00 per TB. Performance / price is 29.0 and capacity value is 29.0. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.

Drive data

Full specifications

Interface, flash, controller, cache, throughput, endurance, power, warranty, and value in one technical sheet.

General

Manufacturer
Western Digital
SSD
WD_BLACK 1TB SN770
Part number
WDS100T3X0E
Model
WDS100T3X0E
Capacity
1000 GB
Form factor
M.2 2280
Launch price
—
Amazon price
$340
Amazon availability
Not currently available
Price updated
Aug 16, 2026

Performance

Sequential read
5150 MB/s
Sequential write
4900 MB/s
Random read
740K IOPS
Random write
800K IOPS

Value

Amazon price
$340
Price / TB
$340.00
Performance / price
29.0
Capacity value
29.0

Hardware & cache

Interface
PCIe 4.0 x4, NVMe 1.4
Interface generation
PCIe 4.0
Controller
Polaris MP16+
NAND
TLC 112-layer
Process
16.0
Cache type
Host-Memory-Buffer (HMB)
DRAM
Host-Memory-Buffer (HMB)
DRAM capacity
64 MB
DRAM speed
2000 MT/s
SLC cache
Dynamic

Durability & power

Endurance
600 TBW
Endurance / TB
600 TBW
Warranty
5 years
Idle power
1.00 W
Active power
4.60 W

Additional information

Also listed as
1TB SN770
Color
Black

Amazon

Price history

Nearby performance

Similar SSDs

Drives close to WD_BLACK 1TB SN770 on calculated specification performance. Open the SSD table to sort, filter, and compare side by side.

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

Get into the game fast as you zoom past load times with blazing speeds of up to 5,150MB/s(1) (1TB and 2TB models)..date transfer rate:5150.0 megabytes_per_second.Sequential Write Performance : 4900MB/s

Equipped with a PCIe Gen4 interface(4), the WD_BLACK SN770 NVMe SSD helps fuel in-game responsiveness, minimize stutter, and provide smooth streaming for a performance boost you can see and feel.​

Get tons of space for your latest games, future updates, and downloadable content with capacities up to 2TB(2).​

Supports future games developed for Microsoft’s DirectStorage technology for faster load times.​

Optimize peak performance in gaming mode and monitor your drive’s health with the WD_BLACK Dashboard (Windows only) so you can game with confidence using this reliable drive from a trusted brand.​

(1)Based on read speed. 1 MB/s = 1 million bytes per second. Based on internal testing; performance may vary depending upon host device, usage conditions, drive capacity, and other factors.

(2)1GB = 1 billion bytes and 1TB = 1 trillion bytes. Actual user capacity may be less depending on operating environment.

(4)PCIe Gen4 storage technology requires a compatible motherboard. WD_BLACK SN770 is backwards-compatible with PCIe Gen3.

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