In the smartphone world, Xiaomi has long established a reputation as a brand that offers flagship performance at a price lower than Samsung or Apple. POCO The answer depends not only on the naked characteristics, but also on how chipsets behave in real tasks: from rendering. 3D-graphics in games to multitasking with a dozen running apps.
We analyzed the AnTuTu 10, Geekbench 6, the results in Genshin Impact and Call of Duty: Mobile, and also took into account the features of cooling and optimization. MIUI. This guide is an honest comparison of top models, their weaknesses and exclusive data on thermotrottling (when a smartphone starts to “strangle” performance due to overheating).If you are looking for a device that will not brake after a year, this material will help avoid mistakes when choosing a device that will not slow down.
Spoiler: the leader in "raw" power was Xiaomi 14 Ultra, but there are nuances with its availability and price. POCO F6 Pro and Redmi. K70 Pros are dark horses, and their price/performance ratio is breaking records, and then we'll look at why it happened and what to choose based on budget.
1. TOP-5 The most powerful smartphones Xiaomi 2026 test-year
We've taken data from AnTuTu (May 2026), Geekbench 6 and 3DMark Wild Life, and they also took the stress test results, where the smartphones loaded for 30 minutes straight:
| Model | Chipset | AnTuTu 10 (Grade Average) | Geekbench 6 (multi-core) | Thermotrotting after 30 minutes of play |
|---|---|---|---|---|
| Xiaomi 14 Ultra | Snapdragon 8 Gen 3 (4nm) | 2 150 000 | 7 200 | −12% (moderate) |
| Xiaomi 14 Pro | Snapdragon 8 Gen 3 (4nm) | 2 080 000 | 7 050 | −15% (moderate) |
| Redmi K70 Pro | Snapdragon 8 Gen 3 (4nm) | 2 050 000 | 6 980 | −8% (low) |
| POCO F6 Pro | Snapdragon 8+ Gen 1 (4nm) | 1 850 000 | 6 300 | −5% (very low) |
| Xiaomi 13T Pro | MediaTek Dimensity 9200+ (4nm) | 1 780 000 | 6 100 | −20% (high) |
Pay attention to Redmi K70 The Pro has overtaken the Xiaomi 14 Pro in thermoregulation thanks to an improved cooling system with a steam chamber of 5000 mm2.This means that in long gaming sessions it will be more stable to keep the game in the future. FPS. Here's Xiaomi. 13T Pro with Dimensity 9200+ sank in tests due to aggressive trottling - its processor is heated stronger than competitors.
Interesting fact: POCO F6 Pro uses Snapdragon 8 chipset+ Gen 1, which was released in 2022, but due to optimization in the MIUI 15 it delivers results at the level of flagships of 2023, which makes it the best choice for price/performance ratio among all Xiaomi smartphones today.
2. Snapdragon 8 Gen 3 vs Dimensity 9300: Which CPU is more powerful in Xiaomi smartphones?
In 2026, Xiaomi bet on two flagship chipsets: Qualcomm Snapdragon 8 Gen 3 (in models 14 Ultra, 14 Pro, Redmi). K70 Pro) and MediaTek Dimensity 9300 (only Xiaomi 14 for the Chinese market so far), the difference between the two is critical for some tasks.
✅ Snapdragon 8 Gen 3 wins in the game:
- 🎮 Games: Better optimized for Unreal Engine 5 And Vulkan. Genshin Impact gives you stable settings at maximum settings. 58-60 FPS against 50-55 Dimensity 9300.
- 📱 AI Tasks: Supports Qualcomm AI Engine with 45 performance TOPS (Dimensity 9300 - 38 TOPS).
- 📡 Networking Opportunities: Snapdragon Modem X75 speed 5G up to 10 Gbit / s (Dimensity 9300 – 7 Gbit / s).
✅ MediaTek Dimensity 9300 bypasses Snapdragon in the:
- 🔋 Energy efficiency: 15% lower consumption for simple load (web surfing, social networks).
- 📸 Photo/video processing: the built-in Imagiq 990 processor is faster RAW-Files (up to 20% in Lightroom Mobile).
- 💰 Price: smartphones on Dimensity 9300 cheaply 10-15% with similar productivity.
But there's a catch: Xiaomi 14 with Dimensity 9300 is not officially sold in Europe and Russia.If you're not ready to mess with parallel imports, the choice comes down to the Snapdragon 8 Gen 3.
💡
To check the real performance of your smartphone, install CPU Throttling Test from Google Play.Run a 30-minute test: If the performance drawdown is greater than 25%, your machine is heated and needs to be cleaned or replaced with a thermal paste.
3.Why Redmi. K70 Pro more powerful Xiaomi 14 Pro: the analysis of the cooling system
On paper Xiaomi 14 Pro and Redmi K70 The Pros have the same chipset, the Snapdragon 8 Gen 3, but in real-world tests, Redmi shows better stability under long-term loads:
🔥 Xiaomi 14 Pro is using the:
- Steam chamber with an area of 4300 mm2.
- Graphite plates 0.15 mm thick.
- Thermopaste with thermal conductivity of 12 W / m·K.
❄️ Redmi K70 Pro is equipped:
- Steam chamber 5000 mm2 (16 percent more).
- Double graphite plates (0.2 mm) + 0.15 mm).
- Thermopaste with thermal conductivity of 15 W / m·K (25 percent more efficient).
- Additional fan in the box (optional).
Result: After 45 minutes of playing Call of Duty: Mobile at maximum settings:
- Xiaomi 14 Pro loses up to 18% of its performance (FPS drops from 90 to 74).
- Redmi K70 The Pro is losing only 6% (FPS level 85-88).
⚠️ Note: If you plan to use a smartphone to stream games (for example, through Xbox Cloud Gaming), choose models with active cooling. Even Xiaomi flagships without a fan can overheat when you are under prolonged load on the device. GPU.
How to check the temperature of the processor?
4. POCO F6 Pro: why this smartphone beats the flagships in the ratio price / power
POCO F6 Pro is the only smartphone in the Xiaomi lineup that offers the flagship chipset of the last generation (Snapdragon 8).+ Gen 1) for the price of a mid-range machine?
💡 3 Reasons Why It’s Beneficial:
- 📉 Price: by 30-40% Xiaomi 14 Pro 90% its productivity.
- 🔄 Optimization: MIUI 15 specially modified for Snapdragon 8+ Gen 1, eliminating the lags of previous versions.
- 🔋 Battery: 5000 mAh vs 4860 mAh Xiaomi 14 Pro + fast charging 120 watts.
📊 Comparison with flagships in games (setting "Ultra", 60) FPS):
| Game. | POCO F6 Pro (8+ Gen 1) | Xiaomi 14 Pro (8 Gen 3) |
|---|---|---|
| Genshin Impact | 55 FPS (stably) | 58 FPS (−2 FPS 30 minutes) |
| Call of Duty: Mobile | 88 FPS | 90 FPS (−5 FPS 30 minutes) |
| Honor of Kings | 120 FPS (max.) | 120 FPS (max.) |
Conclusion: If you don’t need the top-end cameras or screen resolution 2K+, POCO F6 Pro will give 95% of the performance of the flagship for half the price.
Game mode in settings (Settings) → Special facilities → Game turbo)
The presence of a proprietary film on the screen (it protects against scratches, but worsens tactile sensations)
Support 5G in your area (modem) X65 It does not work with all operators)
Compatible with wireless headphones (there are bugs with Sony) LDAC into MIUI 15)-->
5. Xiaomi 14 Ultra: The Ultimate King of Performance or Marketing?
Xiaomi 14 Ultra is billed as the “most powerful smartphone in the world” — but is it really true? Let’s take a look at its unique features and hidden flaws:
✨ Pluses:
- 🏆 Record AnTuTu: 2,150,000 points (15 percent higher than the iPhone 15 Pro Max).
- 📷 Leica cameras: Sony's main sensor IMX989 (1 lens) + diaphragm (f/1.6–f/4.0).
- 🖥️ Screen: 2K AMOLED With 3000 nits of brightness and Dolby Vision support.
- 🔋 Charging: 90W wireless + 120 W wired (charges 5300 mAh in 30 minutes).
⚠️ Cons:
- 💸 Price: from 120 000 rubles - more expensive than Samsung Galaxy S24 Ultra.
- 🔥 Overheating: despite steam chamber, when recording 8K-Video temperature reaches 48°C (shell heated to 43)°C).
- 📦 Dimensions: 236 g and thickness of 9.2 mm - it is inconvenient to hold with one hand.
- 🔄 MIUI: The global version lacks some camera features (e.g. Leica Authentic Look).
⚠️ Note: If you are buying Xiaomi 14 Ultra for video, keep in mind that when recording in 8K@24fps swelling 12-15 For professional work, it is better to use an external cooler or to limit yourself to the following: 4K@60fps.
🔍 Who's right for?
Professional photographers (cameras are better than the iPhone 15 Pro).
Technology enthusiasts who are interested in record numbers in benchmarks.
Those who are willing to pay for premiums (ceramic case, titanium inserts).
🚫 Who doesn't fit?
- Gamers (overheating negates the advantage of Snapdragon 8 Gen 3).
For those looking for a compact smartphone.
- Buyers with a limited budget (you can get an iPhone for this money) + MacBook).
💡
The Xiaomi 14 Ultra is not so much the “most powerful” smartphone as the “most advanced” smartphone in the lineup, with its main advantage being cameras and screen, not pure performance.
6. How to choose the most powerful Xiaomi for your tasks?
There is no one "one most powerful" smartphone, it all depends on your priorities.
🎯 For games and streaming:
- 💰 Budget up to 50,000 ₽: POCO F6 Pro (Best Price/Power Ratio).
- 💰 Budget 70,000-90,000 ₽: Redmi K70 Pro (stable Xiaomi 14 Pro in long sessions).
- 💰 Budget 100,000+ ₽: Xiaomi 14 Ultra (only if you need top-end cameras).
📸 For photography and videotaping:
- 📌 Best pick: Xiaomi 14 Ultra (sensor 1 inch, optical zooms) 3.2x and 5x).
- 📌 Budget alternative: Xiaomi 13 Pro (still relevant in 2026).
💼 For work and multitasking:
- 🖥️ Office Tasks: Xiaomi 14 (with Dimensity 9300 – more energy efficient for web surfing and documents).
- 🖥️ Heavy Apps (Lightroom, Premiere Rush): Redmi K70 Pro (best cooling).
🔋 For autonomy:
- 📱 Maximum working time: POCO F6 Pro (5000 mAhh) + optimized chipset).
- 📱 Fast charging: Xiaomi 14 Pro (120 W) + wireless 50 watt).
Simple selection algorithm:
- Identify the main task (games / photos / work).
- Select a budget (up to 50k / 50k-80k / 80k)+).
- Check for a model in your area (some flagships are only sold in China).
- Check out reviews about overheating (e.g. Xiaomi) 13T Pro warms up stronger than Redmi K70 Pro).
7. Myths about Xiaomi Smartphone Power: What Really Matters?
When choosing the most powerful smartphone, many people are guided by myths that are far from reality.
🚫 Myth 1: “The more cores in a processor, the more powerful it is"
✅ Reality: Modern chipsets (like the Snapdragon 8 Gen 3) have 8 cores, but only 1 super-powerful core. Cortex-X4 It's the performance of games and heavy tasks. The other 7 cores are the background processes.
🚫 Myth 2: “12 GB of RAM is enough for any task"
✅ Reality: In 2026, 16GB of RAM becomes the standard for flagships. For example, in Genshin Impact with an open map and background applications (Telegram, YouTube), Xiaomi 14 Pro starts to peg with 12GB, and the 16GB version runs smoothly.
🚫 Myth 3: MediaTek chipsets are weaker than Snapdragon"
✅ Reality: Dimensity 9300 beats Snapdragon 8 Gen 2 in some tests (but loses 8 Gen 3) and the main difference is in the optimization of games: Xiaomi better adapts software for Snapdragon.
🚫 Myth 4: The thinner the smartphone, the more modern it is"
✅ Reality: Thin cases (like Xiaomi 13) are worse at dissipating heat. 9-thick flagships+ mm (e.g. Redmi) K70 Pro) have more room for cooling systems and keep performance longer.
⚠️ Warning: If you see the phrase "artificial intelligence" in the specs of a smartphone, it's not a power guarantee. Many budget models (e.g. Redmi Note 13 Pro)+) have "AI-chips", but their performance in real tasks is inferior to the flagships of two years ago.