Comparing: PNY CS900 250GB vs Western Digital PC SN740
In this comparison, we analyze two Disks: PNY CS900 250GB and Western Digital PC SN740, 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.

PNY CS900 250GB
Type: | Disks |
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Model: | PNY CS900 250GB |
Capacity: | 250GB |
Interface: | SATA-III 6Gbps |

Western Digital PC SN740
Type: | Disks |
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Model: | PC SN740 |
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 | PNY CS900 250GB | Western Digital PC SN740 |
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Brand | PNY | Western Digital |
Format | SSD 2.5 | SSD M.2 NVMe 2280 |
Capacity | 250GB | 512GB |
Interface | SATA-III 6Gbps | 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 | PNY CS900 250GB | Western Digital PC SN740 |
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1 | AS-SSD |
Read: 444.94 MB/s Write: 397.23 MB/s |
Read: 3795.33 MB/s Write: 1879.37 MB/s |
2 | ATTO Disk Benchmark - 64M |
Read: 542.37 MB/s Write: 505.26 MB/s |
Read: 4720.00 MB/s Write: 3670.00 MB/s |
3 | Cross Platform Disk Test |
Read: 415.87 MB/s Write: 214.49 MB/s |
Read: 3410.00 MB/s Write: 1550.00 MB/s |
4 | CrystalDiskMark |
Read: 535.26 MB/s Write: 478.16 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 PNY CS900 250GB
The PNY CS900 250GB is a SATA III (6Gbps) SSD designed as an affordable upgrade solution for users still using hard disk drives (HDDs). Utilizing 3D NAND flash memory, this SSD delivers major improvements in read and write speeds, power efficiency and operational reliability for everyday computing needs.
It is capable of achieving read speeds of up to 535MB/s and write speeds of up to 500MB/s, making it ideal for speeding up operating system boot times, streamlining application launches and accelerating file transfer processes. Compared to conventional HDDs, the performance improvements offered by the CS900 are very noticeable, especially on systems with limited specifications.
The test was conducted using an HP 1000 1b05AU laptop equipped with an AMD E1-1200 processor, 4GB DDR3 RAM, and Windows 7 64-bit operating system. This laptop supports SATA-III, so it can utilize the maximum bandwidth of the CS900. Although the test system is in the low-end category, the performance improvement after switching from HDD to SSD is significant.
In performance testing, the PNY CS900 250GB showed quite impressive results for the SATA SSD class. Using CrystalDiskMark software, read speeds were recorded at 535.26 MB/s and write speeds reached 478.16 MB/s, reflecting optimal performance on the SATA III interface. Meanwhile, tests using AS-SSD Benchmark recorded read speeds of 444.94 MB/s and write speeds of 397.23 MB/s, showing good performance consistency for various daily usage scenarios such as system booting, opening applications and transferring large files.
The PNY CS900 also offers the added benefits of silent operation, low power consumption and better shock resistance than HDDs, making it a great choice for laptop users who need a reliable and power-efficient storage solution.
With its 2.5-inch form factor and SATA III interface, this SSD is highly compatible with the majority of laptops and desktops, both old and new systems. The PNY CS900 250GB is an economical upgrade option that still delivers high performance for basic productivity, entertainment and everyday use.
Device Test:
Device: HP 1000 1b05au
CPU: AMD E1-1200
RAM: 4GB DDR3
OS: Windows 7
SATA-III
Tuesday, 31 January 2023 05:42:07 | Update: 21 hours ago
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