
WD_BLACK SN770
Score: 80/100
Crucial P3 Plus 1TB
Score: 73/100Rankings

The WD_BLACK SN770 2TB is a DRAM-less PCIe Gen4 SSD delivering up to 5150 MB/s reads and 4850 MB/s writes with a robust 1200 TBW endurance. Its budget-friendly price and low power draw come at the cost of no onboard DRAM and no included heatsink, which can limit sustained performance under heavy loads. Ideal for gamers and mainstream builders seeking fast sequential performance without the premium price.

The Crucial P3 Plus 1TB is a budget-oriented PCIe 4.0 NVMe SSD that offers blazing sequential read speeds and a large pSLC cache for fast burst writes, delivering strong first-impression performance. Its DRAM-less design and limited random IOPS cause latency and throttling once the cache is depleted, making it less suitable for sustained heavy-write workloads. It is best for gamers and general users who want Gen4 speeds without a premium price.
| Attribute | ![]() | ![]() |
|---|---|---|
2,000 GBbest | 1,000 GB | |
5,150 MB/sbest | 5,000 MB/s | |
4,850 MB/sbest | — | |
650,000 IOPSbest | 164,000 IOPS | |
800,000 IOPSbest | 65,000 IOPS | |
1,200 TBbest | 220 TB | |
— | 1,500,000 hoursbest | |
0 MBbest | — |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Connectivity(1) | ||
Interface | PCIe Gen4 x4 NVMe 1.4 | PCIe Gen4 x4 |
Performance(4) | ||
Sequential Read Speed (MB/s) | 5150 MB/s | 5000 MB/s |
Sequential Write Speed (MB/s) | 4850 MB/s | 3600-4200 MB/s |
Random Read IOPS (4K) (IOPS) | 650000 IOPS | 164000 IOPS |
Random Write IOPS (4K) (IOPS) | 800000 IOPS | 65000 IOPS |
Storage(2) | ||
Storage Capacity (GB) | 2000 GB | 1000 GB |
NAND Type | TLC | QLC |
Reliability(1) | ||
Total Bytes Written (Endurance) (TB) | 1200 TB | 220 TB |
Design & Build(2) | ||
Weight (g) | 5.5 g | 5.8 g |
Dimensions (L×W×H) (mm) | 80x22x2.4 mm mm | 80.01×2.29×22.10 mm mm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers regard the WD_BLACK SN770 as a compelling budget-friendly PCIe Gen4 SSD that punches above its weight class, delivering flagship-like sequential speeds and solid endurance while keeping costs low. They commend its value, fast load times, and low power draw, but warn that the DRAM-less design and lack of a heatsink could limit sustained performance in demanding scenarios.
General users praise the drive for its rapid game loading, smooth everyday performance, and easy installation, seeing it as a solid value for a 2 TB capacity. Recurring concerns revolve around thermal throttling without a heatsink and occasional slowdowns during long write operations, especially for those expecting flagship-level consistency.

Professional reviewers commend the P3 Plus for its impressive sequential throughput and aggressive pricing, especially the 64K write performance that outpaces many QLC competitors. However, they consistently point out its weak random IOPS, high latency, and the drawbacks of a DRAM-less architecture, which cause sustained write speeds to tumble once the cache is exhausted. Overall, they view it as a solid budget Gen4 option for bursty workloads but not a contender for performance-critical or heavy-write scenarios.
Everyday users love the noticeable speed boost in booting, app loading, and large file transfers, often describing the experience as "very snappy" and a "massive jump" from SATA or HDD setups. Recurring complaints focus on performance throttling after the cache fills, heat concerns without a heatsink, and disappointment with random small-file speed, especially for VDI or database-type tasks.
“Fast game loading and smooth performance in PCs/PlayStation 5”

