Comparing: OPPO A15s eMMC 5.1 vs DDR3 SODIMM 1066MHz [Disk]

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About Hardware OPPO A15s eMMC 5.1

OPPO A15s eMMC 5.1 is the eMMC (embedded MultiMediaCard) version 5.1-based internal storage chip used in the OPPO A15s smartphone. The eMMC 5.1 technology is a significant upgrade from the previous generation, delivering faster read/write speeds, better power efficiency, and improved performance in data input/output management. While not as fast as the more modern UFS (Universal Flash Storage) technology, eMMC 5.1 remains a reliable storage standard for entry-level to mid-range smartphones.

This storage is designed to provide a seamless user experience, from opening apps, saving files, recording videos, to managing Android system data. It also plays an important role in operating system stability, lightweight multitasking, and response time when the device starts up or switches between apps.

The tests were conducted on an OPPO A15s device with MediaTek Helio P35 (MT6765) specifications, 4GB RAM, and 64GB internal storage, running on Android 10 operating system with ColorOS 7.2 interface. The test was conducted when the device had been in use for approximately two years, so the performance results may be slightly affected by NAND Flash performance degradation over time (wear leveling).

In a benchmark using the Cross Platform Disk Test (Mobile), the eMMC 5.1 on the OPPO A15s recorded a read speed of 145.27 MB/s and a write speed of 50.09 MB/s. This indicates that the storage performance is still solid enough for daily needs such as opening social media, streaming videos, accessing galleries, and saving files from third-party applications.

Overall, the eMMC 5.1 on the OPPO A15s is a well-balanced internal storage solution between price, efficiency, and performance, perfect for users who need a smartphone with responsive capabilities while remaining power efficient. For casual users, this performance is more than enough to run most popular Android apps without a hitch.

Device test (testbed):

Device: OPPO A15s
CPU: MediaTek MT6765 Helio P35
RAM: 4GB
Storage: 64GB
OS: Android 10, ColorOS 7.2

* This hardware test was conducted after the device was approximately 2 years old, there may be some performance degradation.

Tuesday, 06 April 2021 13:51:49 | Update: 1 month ago

About Hardware DDR3 SODIMM 1066MHz [Disk]

DDR3 SODIMM 1066MHz is a third-generation memory module with a speed of 1066MHz that is commonly used in laptops and small devices. With the SODIMM form factor, these modules are often the standard choice for mobile computing systems, serving as the main memory for running operating systems, applications, and light to medium multitasking processes.

However, in this particular experiment, two 1066MHz DDR3 SODIMM modules from Micron and ADATA (2GB capacity each) were uniquely configured as a RAMDisk, a temporary storage space that uses RAM capacity to simulate a storage drive with much higher access speeds than SSDs or HDDs.

The 1066MHz DDR3 SODIMM-based RAMDisk test was conducted on an HP 1000 1b05au laptop device, powered by an AMD E1-1200 processor. The system is equipped with a 2x2GB DDR3 SODIMM 1600MHz RAM configuration, but due to processor architecture limitations, the memory only runs in single channel mode with an effective speed of 1066MHz. The operating system used is Windows 7, and to create and manage the RAMDisk, two popular applications, SoftPerfect RAMDisk and ImDisk Virtual Disk Driver, were used. The configured RAMDisk size was 2GB, utilizing some of the available RAM capacity.

Even though the device specifications are old and have limited memory bandwidth, the RAMDisk configured in this system was still able to show excellent performance in the read and write speed benchmarks. Based on tests using CrystalDiskMark, the read speed reached 746.24 MB/s, while the write speed touched 828.18 MB/s. In a follow-up test using ATTO Disk Benchmark with a 64MB block size, the read speed increased to 1020.00 MB/s, and the write speed reached 1080.00 MB/s. These results prove that even on older systems, RAMDisk configurations are still capable of delivering very high I/O performance, far surpassing conventional storage such as HDDs or even some SSDs.

Analysis

The results show that a 1066MHz DDR3-based RAMDisk is still capable of delivering data transfer speeds on par with entry-level NVMe SSDs, even outperforming many SATA SSDs and leaving conventional HDDs far behind. This makes RAMDisks an ideal solution for temporary use such as:

• Application caching,
• Temporary file storage,
• Fast computing with high I/O,
• Software or script testing without the risk of contaminating the main file system.

Although limited to a small capacity (2GB in this test), RAMDisk is still very useful for specific needs, especially for users with more than enough RAM or older devices that want to maximize their performance.

Test on:

Device: HP 1000 1b05au
Specs: 
CPU: AMD E1-1200
OS: Windows 7
RAM: 2x2GB Single Channel 2 DIMM 1066MHz (Does not support dual channel due to limitations of the CPU, currently running single channel mode and 1066MHz)

Wednesday, 26 December 2012 14:27:32 | Update: 1 month ago