Comparing: Western Digital PC SN740 vs Seagate ST1000LM035
In this comparison, we analyze two Disks: Western Digital PC SN740 and Seagate ST1000LM035, using synthetic benchmark tests to evaluate their overall performance. This side-by-side comparison helps users understand which hardware delivers better value, speed, and efficiency based on standardized testing. Whether you're building a new system or upgrading an existing one, this benchmark-driven evaluation offers valuable insights to guide your decision.

Western Digital PC SN740
Type: | Disks |
---|---|
Model: | PC SN740 |
Capacity: | 512GB |
Interface: | PCIe 4.0 x4 |

Seagate ST1000LM035
Type: | Disks |
---|---|
Model: | Seagate Mobile HDD ST1000LM035-1RK172 |
Capacity: | 1TB |
Interface: | SATA-III 6Gbps |
Specification Comparison Table
This specification comparison presents technical details of several devices or components to help you understand the key differences between each option. Use this table as a reference to determine which device best suits your needs.
Specification | Western Digital PC SN740 | Seagate ST1000LM035 |
---|---|---|
Brand | Western Digital | Seagate |
Format | SSD M.2 NVMe 2280 | HDD 2.5 |
Capacity | 512GB | 1TB |
Interface | PCIe 4.0 x4 | SATA-III 6Gbps |
Submission Comparison Table
This submission comparison table displays the number and details of benchmark data submissions from various devices or components. This information helps you understand the performance based on the benchmarks that have been tested, as well as providing an overview of the consistency and popularity of the available benchmark results.
No. | Benchmark Software | Western Digital PC SN740 | Seagate ST1000LM035 |
---|---|---|---|
1 | ATTO Disk Benchmark - 64M |
Read: 4720.00 MB/s Write: 3670.00 MB/s |
Read: 87.17 MB/s Write: 101.32 MB/s |
2 | Cross Platform Disk Test |
Read: 3410.00 MB/s Write: 1550.00 MB/s |
Read: 102.61 MB/s Write: 71.64 MB/s |
3 | CrystalDiskMark |
Read: 3913.58 MB/s Write: 3453.18 MB/s |
Read: 133.26 MB/s Write: 129.08 MB/s |
Submission Comparison Chart
This chart visualizes the benchmark scores comparison between two hardware devices based on submitted data.
Media Gallery
A collection of photos of tested hardware. These images can help you identify the physical form, model, and variant of the hardware in question. These photos are from our own documentation, and if they are not available we may not be able to document them.
About Hardware Western Digital PC SN740
The Western Digital PC SN740 is a high-performance NVMe SSD designed for ultrabooks, business laptops, and compact computing devices. Featuring the PCIe Gen4 x4 interface and NVMe 1.4 protocol, this SSD delivers blazing-fast speeds for seamless multitasking and data-intensive applications.
Available in various capacities, including 256GB, 512GB, 1TB, and 2TB, the SN740 is built using Western Digital's 3D NAND technology, ensuring excellent power efficiency, reliability, and endurance. Its M.2 2230 and M.2 2280 form factors make it compatible with a wide range of modern devices, particularly those requiring a compact yet powerful storage solution.
With enhanced security features and power efficiency optimizations, the WD PC SN740 is an excellent choice for professionals and tech enthusiasts looking for a balance of speed, durability, and energy efficiency.
In this test, it runs on PCIe 3.0 x4 because the laptop which by default uses PC SN740 turns out to run PCIe 3.0 x4.
Tuesday, 15 August 2023 13:16:33 | Update: 2 months ago
About Hardware Seagate ST1000LM035
The Seagate ST1000LM035-1RK172 is a 2.5-inch internal hard drive with a 1TB capacity designed for use in laptops and other portable devices. It uses a SATA III (6 Gb/s) interface and has a rotation speed of 5400 RPM, which makes it power efficient and quiet enough for daily computing needs.
Equipped with 128MB of cache, this model offers best-in-class read/write performance, suitable for storing data, documents, multimedia, and operating systems on laptops. It belongs to the Seagate Mobile HDD line, which is known for its balance between large capacity, low power consumption and slim dimensions.
Tested on Lenovo IdeaPad Slim 3i 14ITL6 (i5-1135G7, Win11, USB 3.1 Gen1) using Harddrive Enclosure USB 3.0
Monday, 21 April 2025 20:36:51 | Update: 1 month ago