Launched in 2017, the Xiaomi Redmi 4X has long been considered a benchmark for the budget segment due to its combination of price and quality. One key component of this success was the internal chipset, which ensured stable interface performance and moderate energy consumption. Many users are still wondering what processor is worth in the Xiaomi Redmi 4X and how relevant it is in today’s operating environment.
At the heart of the device is Qualcomm Snapdragon 435, which was Qualcomm’s first 8-core chipset to be built on a 28-nanometer low-power (LPP) process, replacing the less efficient Snapdragon 430 and offering an improved graphics subsystem, and it was the balance between processing power and heat generation that allowed the Redmi 4X to remain popular even a few years after its release.
Understanding the architecture of this processor is important not only for enthusiasts, but also for ordinary users who want to know the limits of their gadget. Below we will discuss in detail the specifications, results of synthetic tests and real performance in everyday tasks.
Technical characteristics of the Snapdragon 435
The Snapdragon 435 CPU is a chip-on-a-chip (SoC) system that includes not only computing cores, but also a modem, graphics accelerator and memory controllers. The CPU architecture is built on 64-bit Cortex-A53 cores. There are eight of them in total, and they are divided into two clusters to optimize power consumption: the first cluster of four cores operates at a frequency of up to 1.4 GHz, and the second at a frequency of up to 1.1 GHz.
This configuration allows the device to efficiently distribute tasks: lighter processes run at low frequencies to save charge, and when you run demanding applications, more productive cores come into operation. Graphics processing is taken over by the Adreno 505 accelerator, which supports modern APIs such as OpenGL ES 3.1 and OpenCL 1.2. This ensures smooth video playback in Full HD resolution and acceptable performance in light games.
Importantly, it supports modem LTE Cat. 4, which allows you to achieve download speeds of up to 150 Mbps. For a budget device in 2017, this was a weighty argument.
⚠️ Note: Despite having 8 cores, you shouldn't expect high single-threaded performance from them. Cortex-A53 It is focused on efficiency, not record power.
The 28nm LPP (Low Power Plus) process technology has played a crucial role in the smartphone’s popularity, reducing heat generation compared to previous generations of chips, which has positively affected the autonomy of the Xiaomi Redmi 4X.
Core architecture and energy efficiency
As mentioned, all eight cores are based on the ARM Cortex-A53 architecture, a time-tested solution that has been widely used in the mid-range and budget segments. The main feature is that all cores are the same, unlike the more modern big.LITTLE circuits with different core types. However, Qualcomm engineers implemented frequency management so that four cores can operate at higher frequencies, providing a response system.
Energy efficiency is achieved by dynamically changing frequency and voltage. When you read text or listen to music, the processor reduces its activity by using minimal resources. At peak load times, such as when you launch a heavy application or navigate, the frequency rises to a maximum of 1.4 GHz.
- 🔋 Low power consumption in standby mode thanks to 28 nm process technology LPP.
- ⚙️ Uniform load distribution between 8 cores with multitasking.
- 🌡️ Absence of critical overheating even with prolonged load.
- 📶 Built-in modem LTE VoLTE-enabled for high-quality voice communication.
It’s worth noting that the Adreno 505 GPU is also energy efficient, and consumes significantly less power than Mali or PowerVR solutions of the same period, which directly affects the battery life of the smartphone.
Performance in benchmarks and games
To assess the real power of the Snapdragon 435 in the Redmi 4X, we look at the results of popular synthetic tests. In AnTuTu 6th and 7th versions, the smartphone consistently scored from 40,000 to 45,000 points. For its time, this was a great result, allowing you to confidently compete with devices based on MediaTek Helio P10.
In the Geekbench test, measuring performance CPU, The single-core result was approximately 600 scoring, and multi-core, approximately 2500-2700 These numbers indicate that the processor is good at everyday tasks, but may have difficulty in heavy computing operations.
As for games, the situation is ambiguous: lightweight projects like Candy Crush or Angry Birds work perfectly smoothly at maximum settings. More demanding games like PUBG Mobile or Call of Duty Mobile launch, but require a minimum of graphics settings and often run at 25-30 frames per second.
| benchmark | CPU evaluation | GPU evaluation | Overall score |
|---|---|---|---|
| AnTuTu v6 | ~23 000 | ~12 000 | 42 000 |
| Geekbench 4 (Single) | 620 | - | - |
| Geekbench 4 (Multi) | 2650 | - | - |
| 3DMark Sling Shot | - | 650 | 580 |
Users planning to use the phone for mobile gaming should consider the limitations of the Adreno 505 graphics accelerator. 3D-high-detailed games.
Comparison with competitors and analogues
When the Xiaomi Redmi 4X was released, its main competitor was MediaTek-based devices. Often compared Snapdragon 435 chip Helio P10. Both processors had 8 cores and 28 nm process technology, but the decision from Qualcomm won due to a more modern modem and better optimization of the graphics driver.
Compared to the Snapdragon 430’s predecessor, the difference was in support of faster communication standards and a slightly higher frequency graphics core, but the difference in everyday use was not as noticeable as in synthetic tests.
In a later comparison with the Snapdragon 625, which was also common in Xiaomi smartphones (for example, in the Redmi Note 4), the 435th lost. Model 625 was based on the 14 nm process technology, which gave a huge increase in energy efficiency and allowed to keep higher frequencies without trottling.
- 📉 Snapdragon 430 – direct predecessor, slightly slower in graphics.
- 🚀 Snapdragon 625 – much more powerful and economical (14 nm vs 28 nm).
- ⚔️ MediaTek Helio P10 — Similar performance but worse optimization.
- 📱 Kirin 650 – Huawei’s competitor, similar performance.
The Redmi 4X was one of the leaders in its class, but was quickly supplanted by newer models with 14-nanometer chips.
The impact of the processor on the work of the camera and multimedia
The quality of photos and videos in a smartphone depends not only on the camera matrix, but also on the ISP (Image Signal Processor) built into the processor. The Snapdragon 435 uses an ISP that supports cameras up to 13 MP with a frame rate of 30 fps or 21 MP at a lower frequency. This explains why the main camera Redmi 4X has a resolution of 13 MP.
The processor is responsible for filters, white balancing and real-time noise cancellation. Thanks to Qualcomm's algorithms, images in good light are detailed, but at night the chip's capabilities are limited, leading to noise.
⚠️ Note: The processor does not support video recording 4K. Maximum available video recording resolution is limited to Full HD (1080p) 30 frames per second.
In terms of multimedia, the chipset supports decoding H.264 and H.265 video codecs (HEVC), which makes it comfortable to watch movies in high quality online, as hardware decoding unloads the main CPU cores.
Relevance of the processor in 2026-2026
A few years after the release of Xiaomi Redmi 4X, its Snapdragon 435 processor has become obsolete. Modern applications are becoming more demanding to resources, and 2 GB or 3 GB of RAM in conjunction with this chip is not always enough for comfortable work.
The latest MIUI interface, based on Android 7 or 8 (Nougat/Oreo), can work with slowdowns. Opening heavy web pages, navigating in maps with online traffic and working messengers with a lot of media files can cause delays.
But for basic purposes, the phone is still useful, if you use it as:
- 📞 Calling for the elderly or children.
- 🎵 MP3-player.
- 📺 Remote control for smart home.
- 📚 Electronic book (when using modes of protection of vision).
In these scenarios, the Snapdragon 435 is a reliable and energy-efficient solution that will not fail in simple tasks.