Comparing: Samsung KMRX10014M vs Maestromemory MicroSDXC 128GB

Specification Comparison Table

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Submission Comparison Table

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About Hardware Samsung KMRX10014M

OPPO F1s eMMC 5.1 (Samsung KMRX10014M) is an internal storage chip made by Samsung that is used in the OPPO F1s smartphone. Relying on eMMC 5.1 technology, this chip offers increased data transfer speeds compared to the previous generation (eMMC 5.0), providing a smoother user experience, especially when it comes to opening apps, saving files, and running the Android operating system responsively.

Although not comparable to UFS (Universal Flash Storage) in terms of performance, eMMC 5.1 remains an economical storage solution for mid-range devices like the OPPO F1s. The technology is reliable enough to handle everyday activities such as opening social media, recording videos, taking photos, and storing documents and apps.

The test was conducted on an OPPO F1s device with MediaTek MT6750 specifications, 4GB of RAM, and 32GB of internal storage, running on the Android 6 operating system. The internal storage on the OPPO F1s uses the Samsung KMRX10014M chip, which is an early generation eMMC 5.1 with relatively high performance for the standards of its release time.

Interestingly, despite the device being over 7 years old, testing using the Cross Platform Disk Test (Mobile) showed read speeds of 286.5 MB/s and write speeds of 78.7 MB/s. These figures are impressive for an eMMC chip that has gone through a long usage cycle, and indicate that the Samsung KMRX10014M has good NAND Flash endurance.

Overall, the eMMC 5.1 on the OPPO F1s offers an ideal combination of power efficiency, moderately high performance, and low manufacturing costs. This makes it a very suitable solution for devices with standard to mid-range requirements, especially when first released. While eMMC performance may degrade with age, these benchmark results show that the chip is still capable of performing quite well even after many years.

Device test (testbed):

Device: OPPO F1s
CPU: MediaTek MT6750
RAM: 4GB
Storage: 32GB
OS: Android 6

* This test was conducted after the device was approximately 7 years old, which is likely to have degraded the performance of eMMC.

Friday, 19 November 2021 16:41:45 | Update: 1 month ago

About Hardware Maestromemory MicroSDXC 128GB

MaestroMemory MicroSDXC 128GB is an affordable yet reliable external storage solution, designed for use in various devices such as smartphones, tablets, digital cameras, and laptops. Supported by UHS-I and Class 10 technology, this memory card offers high data transfer speeds to support multimedia needs such as video recording, storing high-resolution photos, and running mobile applications without any significant obstacles.

The large capacity of 128GB provides ample space to store important files such as work documents, music collections, and video content. In addition, MaestroMemory also emphasizes power efficiency and resistance to various environmental conditions, such as high and low temperatures, making it suitable for long-term use in various situations. The card is compatible with the exFAT file system which is the storage standard for modern devices, maximizing space usage and compatibility.

The test was conducted using a Lenovo IdeaPad Slim 3i 14ITL6 equipped with an Intel Core i5-1135G7 processor, NVIDIA MX350 GPU, and 12GB RAM, with Windows 11 Home 23H2 operating system. The tests were conducted through the USB 3.1 Gen 1 port using a VENTION USB 3.0 card reader with GL3224 controller, in a freshly opened card condition, with no files, and the default “Quick Removal” policy from Device Manager.

The benchmark results show quite competitive performance in its class. In tests using CrystalDiskMark, the 128GB MaestroMemory recorded read speeds of 93.41 MB/s and write speeds of 55.99 MB/s. Further testing with ATTO Disk Benchmark (64M) showed read speeds of 92.09 MB/s and write speeds of 45.47 MB/s, while Cross Platform Disk Test recorded speeds of 91.13 MB/s for read and 47.95 MB/s for write. These figures show that this microSD card is capable of meeting daily needs such as Full HD video recording, installation of large applications, or transferring large amounts of data.

However, it should be noted that we did not find any official information about the manufacturer of MaestroMemory, including the company's website or technical documentation that is usually found on reputable brands. We found this microSD card widely sold in the Indonesian marketplace, and based on discussions, there is speculation that MaestroMemory is a sub-brand of V-GeN Indonesia, although this claim has yet to be officially verified. If you try to search for MaestroMemory on international marketplaces, you will most likely not find it.

For additional validation, we also conducted a capacity integrity test using H2testw, and the results showed that the MaestroMemory 128GB microSD passed the test, with the correct capacity and no damaged areas or fake storage detected.

Overall, the MaestroMemory MicroSDXC 128GB is an attractive option for users looking for a large capacity memory card at a competitive price, as long as it is used in accordance with its class and segmentation. As a wise move, users are advised to always perform authenticity checks and post-purchase performance tests.

Device Test (Testbed):

Device: Lenovo IdeaPad Slim 3i 14ITL6
Device Specs: i5-1135G7, NVIDIA MX350, 12GB RAM 3200MHz (4+8), 512GB NVMe SSD, USB 3.1 Gen 1, Windows 11 Home 23H2
Card Reader: VENTION USB 3.0 (GL3224 Controller)
Room Temperature: 30 celcius based on DHT11 Sensors

Condition: This experiment is run when the item is newly purchased, no files condition (0% usage), exFAT file system (default), Device Manager Policy: Quick Removal (Default).

Friday, 23 February 2024 09:51:41 | Update: 1 month ago