Xiaomi 15S Pro & Xuan Jie O1 Chip: A Deep Dive Performance Review
Table of Contents
- Introduction: Xiaomi's Bold Chip Venture
- Xuan Jie O1: Under the Hood of a Flagship SoC
- Benchmark Performance: Numbers Don't Lie
- Real-World Gaming Experience
- Battery Life and Thermal Management
- Xuan Jie O1: First Impressions & Overall Takeaway
- Beyond the Chip: Xiaomi 15S Pro Highlights
- The "Why": Xiaomi's Chip Development Strategy
- Conclusion: A Milestone for Xiaomi and Domestic Tech
Introduction: Xiaomi's Bold Chip Venture
Today, we're diving deep into the highly anticipated Xiaomi 15S Pro and, more specifically, its groundbreaking self-developed flagship System-on-Chip (SoC), the Xuan Jie O1. This isn't Xiaomi's first foray into chip design, but the Xuan Jie O1 marks a significant leap, positioning it as a true contender in the top-tier mobile processor space. Let's see how this "Xiaomi 15S Pro and Xiaomi Xuan Jie O1 Chip Performance Review" unfolds.
The Xiaomi 15S Pro, powered by the new Xuan Jie O1.
Xuan Jie O1: Under the Hood of a Flagship SoC
Unlike the earlier Pengpai S1, the Xuan Jie O1 is engineered from the ground up as a flagship SoC. Xiaomi's design and technology are evident, utilizing TSMC's N3E process – the same advanced node used by industry giants like Apple's A18 Pro, Snapdragon 8 Gen 3, and MediaTek 9400+.
Key architectural highlights include:
- CPU: A dual-core 10-core architecture with an aggressive performance release, complemented by 4 dedicated energy-efficient cores for light tasks.
- GPU: The G925 with a 16-core design, featuring hardware-level ray tracing support.
- Completeness: From transistor count to core specifications, and the integration of CPU, GPU, NPU (Neural Processing Unit), and ISP (Image Signal Processor), the Xuan Jie O1 stands tall in the Android camp.
With this chip, Xiaomi signals its ambition to compete directly with Apple, Huawei, and Samsung in the high-stakes flagship chip arena.
the Xuan Jie O1 SoC.
What is TSMC N3E? N3E is an enhanced version of TSMC's 3-nanometer process technology. It offers improved performance, power efficiency, and transistor density compared to its predecessor, making it a prime choice for cutting-edge mobile SoCs.
Benchmark Performance: Numbers Don't Lie
Paper specifications are one thing, but real-world benchmarks tell a more complete story. Here's how the Xuan Jie O1 performed:
AnTuTu Scores
The Xuan Jie O1 achieved an impressive AnTuTu benchmark score of 2.59 million points. This firmly places it in the flagship tier, a remarkable feat for Xiaomi's first complete self-developed flagship SoC, especially considering the need to balance power and thermals.
GeekBench 6 Prowess
In GeekBench 6, the Xuan Jie O1 surpassed the MediaTek 9400+ and nearly caught up with the Snapdragon 8 Gen 3. While its single-core score was slightly behind Apple's A18 Pro, its multi-core performance took the lead. This indicates strong CPU capabilities, aligning with its on-paper specs.
GFXBench Graphics Might
GPU performance is equally crucial. The Xuan Jie O1's G925 GPU delivered impressive results in multiple GFXBench tests, outperforming the MediaTek 9400+ and A18 Pro overall. In certain scenarios, it even surpassed the Snapdragon 8 Gen 3, showcasing robust graphics processing power.
benchmark score comparison.
Real-World Gaming Experience
Benchmarks are indicative, but gaming is the ultimate test for many. We put the Xiaomi 15S Pro through its paces:
- Genshin Impact: Running at highest graphics and 60fps in Sumeru City for 30 minutes, the average frame rate was a stable 59.5 fps.
- Honor of Kings: At highest graphics and 120fps mode, it maintained an average of 120.2 fps for half an hour.
- Peacekeeper Elite: In smooth graphics and 120fps mode, it ran consistently at 119.3 fps.
Throughout these tests, the phone exhibited no obvious stuttering or frame drops, providing a consistently smooth gaming experience.
Smooth gaming is a hallmark of a flagship chip.
Battery Life and Thermal Management
Under continuous gaming load, the maximum temperature on the front and back of the phone reached 44.5 degrees Celsius. This thermal performance is commendably stable, contributing to the smooth gaming experience. Coupled with the Xiaomi 15S Pro's large 6100mAh battery, a 3-hour comprehensive daily usage test (short videos, photos, navigation, social media) showed satisfactory battery life. The Xuan Jie O1 seems to strike an ideal balance between performance output and power efficiency, ensuring robust performance without unduly sacrificing daily battery endurance.
Xuan Jie O1: First Impressions & Overall Takeaway
From architectural design to actual performance, the Xuan Jie O1 is a pleasant surprise. For a debut flagship SoC, it not only "works" but demonstrates true flagship-level stability, practicality, and sustained performance. This is a significant achievement.
Beyond the Chip: Xiaomi 15S Pro Highlights
The Xiaomi 15S Pro itself builds upon the legacy of the 15 Pro with some notable enhancements:
Design and Commemorative Touches
The phone largely continues the Xiaomi 15 Pro's design language but adds a dragon scale fiberboard back. Gold plating adorns the Xiaomi logo and power button, and a small "X RING" logo sits below the flash. As a 15th-anniversary commemorative edition, it includes thoughtful touches like a dedicated boot animation, exclusive electronic certificates, and medals, adding emotional value.
Imaging Prowess: Enhanced by Xuan Jie O1
The camera hardware mirrors the Xiaomi 15 Pro, offering a familiar, natural, and clean imaging style with well-presented Leica colors. Xiaomi's experience with its own ISPs over several years means mature tuning. The switch to its own SoC, the Xuan Jie O1, brings further ISP upgrades:
- Faster camera startup.
- Quicker continuous shooting and preview speeds.
- Full-focal length 4K night scene video recording, resulting in purer images and richer details in low light.
- Crucially, this night scene algorithm is accessible to third-party apps, showcasing the advantage of self-developed underlying capabilities.
Xiaomi Mi 15S Pro is really cool! It is no exaggeration to say that this is the best textured Xiaomi phone I have pic.twitter.com/nJcRFCEv5y
— techway1 (@Techway0) May 22, 2025
Display and AI Enhancements
The Xuan Jie O1 also brings improvements to other aspects of the user experience:
- Sunshine Screen: The chip enables more precise color management and dynamic optimization of screen content, leading to better highlight and shadow detail.
- AI Capabilities: The local computing power of the Xuan Jie O1 is significantly improved. This translates to faster response times and higher accuracy for on-device AI functions within Xiaomi's Pengpai OS, such as voice recognition, image understanding, and multi-device collaboration.
The "Why": Xiaomi's Chip Development Strategy
Developing a flagship SoC is a monumental, time-consuming, and resource-intensive undertaking. So why did Xiaomi embark on this journey? It's been a long road, from the early Pengpai S1, through image-focused chips like the C1 and C2, to today's Xuan Jie O1.
The core motivation is clear: mastering underlying computing power allows manufacturers to truly define hardware and optimize the system. For users, this translates to:
- Faster system responsiveness.
- Deeper AI integration with the operating system.
- Smoother collaboration between devices.
These detailed optimizations are the result of tight, low-level cooperation between the chip and the system. Xiaomi's chip development isn't for its own sake; it's about achieving holistic software and hardware integration and taking control of the user experience. Only with an autonomous foundation can the entire device achieve genuine breakthroughs, ultimately delivering a more complete and smoother user experience.
The Trend of In-House SoCs: Xiaomi joins a growing list of smartphone manufacturers like Apple, Google, Samsung, and Huawei (with Kirin) who develop their own chips. This allows for greater product differentiation, optimized performance, and better control over supply chains and feature roadmaps.
Conclusion: A Milestone for Xiaomi and Domestic Tech
The Xuan Jie O1 is a significant starting point. While perhaps not yet "perfect," it powerfully demonstrates Xiaomi's determination not only to create its own chips but also to use them effectively and tune them meticulously. This isn't just a victory for the Xuan Jie O1; it's a real breakthrough for domestic manufacturers in mastering fundamental technology. The "Xiaomi 15S Pro and Xiaomi Xuan Jie O1 Chip Performance Review" shows that Xiaomi is serious about innovation from the silicon up.
No comments:
Post a Comment