# WD Black SN750 1TB PCIe 3.0 NVMe SSD (2026)

The WD Black SN750 1 TB is the performance flagship of WD's PCIe 3.0 enthusiast line, posting 3,470 MB/s reads and 3,000 MB/s writes with class-leading sustained write throughput.

Quick answer: The WD Black SN750 1 TB is a strong PCIe 3.0 NVMe SSD for users who prioritize sustained write performance -- video editors, photographers, and anyone regularly moving large datasets. For pure gaming and everyday desktop responsiveness, the Samsung 970 EVO Plus and SK hynix Gold P31 offer slightly snappier read performance at similar prices. The SN750 remains a reliable choice with 600 TBW endurance and a five-year warranty, but it has been superseded by the PCIe 4.0 SN850 for builders on newer platforms.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 3.0 x 4 |
| Controller | SanDisk 20-82-007011 |
| Memory type | SanDisk 64L TLC |
| DRAM cache | SK Hynix 1GB DDR4 SDRAM |
| Sequential read | 3470 MB/s |
| Sequential write | 3000 MB/s |
| Random read IOPS | 515000 |
| Random write IOPS | 560000 |
| Endurance | 600 TBW |
| MTBF | 1.75 |
| Warranty | 5 years |

## Performance

WD rates the 1 TB SN750 for up to 3,470 MB/s sequential reads and 3,000 MB/s sequential writes over PCIe 3.0 x4, with 515,000 random read IOPS and 560,000 random write IOPS. These are the peak figures across the SN750 lineup.

The drive uses a tiered SLC write cache. During burst writes, performance hits the rated ceiling. Once the SLC cache exhausts, the SN750's native TLC write speed remains relatively high compared to many competitors -- this is its standout characteristic. Independent reviewers at Tom's Hardware consistently found the SN750 among the best PCIe 3.0 drives for sustained write workloads, even if its application responsiveness does not always lead the pack.

Gaming Mode in WD Dashboard disables low-power NVMe states to reduce controller wake-up latency. The measured improvement in synthetic latency benchmarks is small, and most users will not perceive a difference in everyday desktop use. Power efficiency is good under load but idle power consumption on desktop platforms is higher than some competitors.

## Endurance, TBW & Warranty

WD rates the 1 TB SN750 for 600 TBW of write endurance under a five-year limited warranty, ending when either threshold is reached. At 30 GB of writes per day -- a moderate workload that includes game installations and updates -- 600 TBW translates to roughly 55 years of use. The drive includes tiered SLC caching, thermal throttling, NAND management, and error correction. WD overprovisions the drive by approximately 9%. The SN750 does not support hardware encryption or secure erase in Parted Magic.

## Pros and Cons

**Pros:**

- 3,470 MB/s reads, 3,000 MB/s writes
- Class-leading sustained write performance
- 515K/560K random read/write IOPS
- DDR4 DRAM cache
- 600 TBW endurance
- Single-sided M.2 2280 at 1 TB
- Five-year warranty
**Cons:**

- Read performance trails Samsung 970 EVO Plus in applications
- No hardware encryption
- No secure erase via Parted Magic
- High idle power draw on desktops
- Superseded by SN850 on PCIe 4.0 platforms


## Verdict

The WD Black SN750 1 TB is a strong PCIe 3.0 NVMe SSD for users who prioritize sustained write performance -- video editors, photographers, and anyone regularly moving large datasets. For pure gaming and everyday desktop responsiveness, the Samsung 970 EVO Plus and SK hynix Gold P31 offer slightly snappier read performance at similar prices. The SN750 remains a reliable choice with 600 TBW endurance and a five-year warranty, but it has been superseded by the PCIe 4.0 SN850 for builders on newer platforms.

## Frequently Asked Questions

### Is the WD Black SN750 1TB good for gaming?

Yes. The SN750 1 TB delivers fast game load times on PCIe 3.0 platforms with its 3,470 MB/s reads. Its read performance in some application benchmarks trails the Samsung 970 EVO Plus and SK hynix Gold P31, but the real-world difference in game load times is typically under a second. The 1 TB capacity holds a substantial game library alongside the operating system.

### Does the WD Black SN750 1TB have a DRAM cache?

Yes. The SN750 uses an SK Hynix DDR4 DRAM chip to store the flash translation layer mapping tables. This full DRAM architecture (not HMB) contributes to the drive's consistent performance under sustained writes and mixed workloads.

### What is the TBW endurance of the WD Black SN750 1TB?

The 1 TB SN750 is rated for 600 TBW (terabytes written), backed by a five-year limited warranty. Endurance scales linearly with capacity across the lineup: 200 TBW for 250 GB, 300 TBW for 500 GB, 600 TBW for 1 TB, and 1,200 TBW for 2 TB. At a moderate 30 GB per day write workload, 600 TBW translates to roughly 55 years of use.

### How does the WD Black SN750 compare to the Samsung 970 EVO Plus?

The SN750 excels at sustained writes, maintaining high throughput after the SLC cache fills. The Samsung 970 EVO Plus generally leads in read-heavy application benchmarks and real-world responsiveness. Both use TLC NAND with DRAM caches on PCIe 3.0 x4. The Samsung supports secure erase in Parted Magic and has a more mature feature set. Pricing is typically competitive between the two at the same capacity.

### Is the WD Black SN750 1TB good for video editing?

Yes, and this is where the SN750's strength lies. Its sustained write performance is among the best in the PCIe 3.0 class, meaning large video file transfers maintain high throughput even after the SLC cache is exhausted. The 600 TBW endurance provides plenty of headroom for the heavy write workloads that video editing scratch disks generate.

### Does the WD Black SN750 1TB need a heatsink?

A standard motherboard M.2 heatsink is sufficient for gaming and desktop workloads. The SN750 is not known for thermal throttling issues at 1 TB under normal use. WD offered an optional EKWB aluminium heatsink on certain SKUs that extends peak performance duration under extreme sustained writes, but it is unnecessary for most users.

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Last updated: 2026-05-17. Source: https://ssdrive.net/western-digital-black-zn750-1-tb