Comparing: Seagate Momentus ST950032-5AS vs Western Digital PC SN740 512GB
In this comparison, we analyze two Disks: Seagate Momentus ST950032-5AS and Western Digital PC SN740 512GB, 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.
Seagate Momentus ST950032-5AS
| Type: | Disks |
|---|---|
| Model: | Seagate ST950032-5AS |
| Capacity: | 500GB |
| Interface: | SATA-II 3Gbps |
Western Digital PC SN740 512GB
| Type: | Disks |
|---|---|
| Model: | PC SN740 512GB |
| Capacity: | 512GB |
| Interface: | PCIe 4.0 x4 |
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 | Seagate Momentus ST950032-5AS | Western Digital PC SN740 512GB |
|---|---|---|
| Brand | Seagate | Western Digital |
| Format | HDD 2.5 | SSD M.2 NVMe 2280 |
| Capacity | 500GB | 512GB |
| Interface | SATA-II 3Gbps | PCIe 4.0 x4 |
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 | Seagate Momentus ST950032-5AS | Western Digital PC SN740 512GB |
|---|---|---|---|
| 1 | ATTO Disk Benchmark - 64M |
Read: 67.46 MB/s Write: 69.85 MB/s |
Read: 4720.00 MB/s Write: 3670.00 MB/s |
| 2 | CrystalDiskMark |
Read: 58.09 MB/s Write: 62.91 MB/s |
Read: 3913.58 MB/s Write: 3453.18 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 Seagate Momentus ST950032-5AS
The Seagate ST9500325AS is a 500GB hard disk drive (HDD) with a 2.5-inch form factor, designed specifically for laptops, notebooks and portable devices. Utilizing a SATA II interface (3.0 Gbps) and a rotation speed of 5400 RPM, this hard drive offers a combination of low power consumption and sufficient performance for everyday computing needs, such as document storage, media, and light operating system installations.
Equipped with 8MB of buffer cache, the Seagate ST9500325AS is capable of handling basic read/write activities steadily, though not as fast as modern solid-state drives (SSDs). Nevertheless, it remains a popular choice for budget-conscious systems, secondary data storage, or upgrading storage capacity without high costs. Compared to 7200 RPM HDDs, 5400 RPM models like these also generate less heat and noise, making them suitable for laptops that prioritize comfort and power efficiency.
Technically, this HDD has an average seek time of about 12ms and is designed to support daily workloads with a high level of reliability. In our data transfer speed benchmark tests, the Seagate ST9500325AS performed as follows:
- Read Speed (Sequential Read): ~58 MB/s
- Write Speed (Sequential Write): ~62 MB/s
While its performance is far below that of SSDs, it is still relevant for basic use, especially on older systems or when large capacity is more important than speed. The Seagate ST9500325AS is also commonly found as built-in storage on previous generation laptops, and is still widely used for backups, large media file storage, and as a portable storage solution with external enclosures.
Device Test:
Device: Lenovo Sabine B475
CPU: AMD A6-3400M
GPU: IGP Radeon HD 6520G
RAM: 2GB DDR3
Thursday, 24 November 2022 09:14:30 | Update: 1 month ago
About Hardware Western Digital PC SN740 512GB
The Western Digital PC SN740 is a high-performance NVMe SSD specifically designed to meet the needs of modern computing, especially in ultrabooks, business laptops and other compact devices. It features a PCIe Gen4 x4 interface and NVMe 1.4 protocol, which enables extremely fast read and write speeds, making it an ideal storage solution for intensive multitasking, big data processing, and a responsive and efficient computing experience.
The SN740 comes in various capacities ranging from 256GB, 512GB, 1TB, to 2TB, providing flexibility for users with different storage needs. Built with Western Digital 3D NAND technology, the SSD offers not only high performance, but also excellent power efficiency and long-term durability. Its availability in two form factors, M.2 2230 and M.2 2280, makes it highly compatible with many of the latest devices, including thin laptops and small industrial systems.
In a real-world test using an Acer Aspire 5 A515-58P laptop equipped with an Intel Core i5-1335U processor, 8GB LPDDR5 RAM and running Windows 11 operating system, the SSD ran on PCIe Gen3 x4 mode due to laptop slot limitations. Despite not running at full PCIe Gen4 speed, the benchmark results still showed excellent performance. Tests with CrystalDiskMark recorded read speeds of up to 3913.58 MB/s and write speeds of 3453.18 MB/s, while AS-SSD Benchmark recorded read speeds of 3795.33 MB/s and write speeds of 1879.37 MB/s. These numbers show that even on a PCIe Gen3 interface, the WD SN740 still offers premium performance that can compete with other high-end SSDs.
In addition to performance, the Western Digital SN740 also features enhanced security and power efficiency, making it a great choice for mobile professionals, software developers, and general users who desire fast and durable storage. With the combination of high data transfer speeds, compact design and Western Digital's brand reputation for reliability, this SSD is one of the best-in-class choices for storage upgrades on modern devices.
Device test (testbed):
Device: Acer Aspire 5 A515-58P
NVMe Capacity: 512GB
PCIe: Gen3 x4 (for run this NVMe)
CPU: i5-1335U
RAM: 8GB LPDDR5
OS: Windows 11
Tuesday, 15 August 2023 13:16:33 | Update: 1 month ago