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The MediaTek Helio G99 is an octa-core, 4G LTE smartphone platform built on a 6nm-class process. It pairs two Arm Cortex-A76 cores running at up to 2.2GHz with six Cortex-A55 cores. Benchmark scores vary by test version and phone, so a score describes a particular result—not every Helio G99 handset.
Helio G99 specifications at a glance
| Specification | MediaTek-stated capability |
|---|---|
| Process | TSMC N6, described as 6nm-class |
| CPU | Eight cores: 2 × Arm Cortex-A76 up to 2.2GHz and 6 × Arm Cortex-A55 |
| Graphics and gaming | Mali-G57-class graphics and HyperEngine 2.0 Lite |
| Memory | Up to 2,133MHz |
| Display | Up to Full HD+ at 120Hz, with Intelligent Display Sync |
| Camera support | Camera designs up to 108MP; infographic also lists 16+16MP dual-camera support with zero-shutter-lag |
| Mobile connectivity | Integrated 4G LTE, LTE-A Cat-13 downlink and dual 4G VoLTE; not 5G |
These are platform capabilities, not a list of features guaranteed in every phone. Manufacturers choose the memory, screen, camera hardware and other components for each model. MediaTek’s Helio G99 specifications and its 2022 infographic describe the platform limits.
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What the Helio G99 benchmark scores show
There is no single universal score for the chip. The following results come from third-party benchmark databases, whose device samples, benchmark releases and methods differ. Treat them as context for the named tests rather than a promise of what a particular phone will score.
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|---|---|---|
| NanoReview, Geekbench 6 | 727 single-core; 2,047 multi-core | Scores displayed on its Helio G99 page when accessed on October 7, 2026. |
| NanoReview, AnTuTu 11 | 554,590 total | Displayed score on the page accessed October 7, 2026. |
| NanoReview, AnTuTu 12 user submissions | 638,604–699,734 | Visible submitted results dated September 24–27, 2026; a changing sample, not a controlled chip-wide result. |
| Notebookcheck, Geekbench 6.7 multi-core | 1,964 average; 1,784 minimum; 2,088 maximum | Average and range across the devices listed in its database when accessed October 7, 2026. |
| Notebookcheck, AnTuTu v10 | 403,419 average; 383,511 minimum; 422,936 maximum | Average and range across its listed device sample. |
| 91mobiles, AnTuTu | About 380,698 | The page describes this as the highest recorded result among the devices it tested. |
| 91mobiles, Geekbench | 575 single-core; 1,766 multi-core | Figures reported on its Helio G99 page. |
Sources: NanoReview’s Helio G99 benchmark page, Notebookcheck’s Helio G99 database and 91mobiles’ Helio G99 page. Benchmark databases can change over time.
#1 Best Overall
- MTK Helio G99 & 20+256GB Storage: Elevate your digital experience with the advanced capabilities of the FOSSIBOT F102 Rugged Smartphone. The cutting-edge MTK Helio G99 Processor ensures extremely fast speeds, making multitasking and app usage seamless. Backed by a substantial 20(12GB Fix+8GB Virtual) RAM and 256GB ROM Storage, this phone accommodates all your data, photos, and files. Enjoy smooth transitions between tasks and immersive gaming, all powered by this dynamic duo.
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Why Helio G99 scores differ between phones
A chipset score is affected by more than the chip name. The phones in database samples may have different RAM, cooling, software and power settings, and they may be tested with different benchmark releases. Even results from the same benchmark family should not be compared as if they were one test when the version differs—for example, AnTuTu v10 and AnTuTu 11 results are not directly interchangeable.
- Compare the same benchmark and version, preferably on complete devices with similar testing conditions.
- Check whether a number is an average, a range, a single displayed result or a user-submitted score.
- For a phone purchase, consider memory and storage configuration, thermal behavior, software, screen and battery alongside benchmark results.
What the specifications mean in everyday use
CPU: two performance cores and six efficiency cores
The two Cortex-A76 cores, clocked up to 2.2GHz, handle demanding work alongside six Cortex-A55 cores. The core count and peak clock describe the CPU configuration, but they do not establish how quickly a specific phone will perform sustained tasks; the handset’s cooling, software and power management also matter.
Rank #2
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- 16GB + 256GB + 2TB Expansion: The Armor 21 phone with base memory of 8GB RAM and 256GB ROM, but the ulefone 21 outdoor smartphone with RAM expansion technology, you can get additional 8GB virtual RAM via the settings, up to 16GB of memory. In addition, it also supports a microSD card with up to 2TB.
- Super Camera: Armor 21 comes with a 64MP Sony IMX686 main sensor, which is quite big in size of 1/1.7" photosensitive element and supports 4-in-1 1.6μm large pixels. The upgraded third generation infrared night vision camera brings higher 24MP pixels, It enables you to shoot great, clear photos in low light and night scenes, and is a nice assistant for some night shooting, wildlife observation and other outdoor activities. And 16MP selfie camera.
- 6.58" FHD+ 120Hz Fluid Display: Armor 21 unlocked phone sports a 6.58-inch FHD+ screen with resolution of 1080 x 2408. 120Hz extra-high refresh rate and 240Hz touch sampling rate make it extremely sensitive for task processing, browsing, game playing. Fine display and operation fluency immerse yourself in it.
Graphics and gaming features
MediaTek identifies Mali-G57-class graphics and HyperEngine 2.0 Lite. The company describes HyperEngine features such as CPU, GPU and memory resource management, call-and-data concurrency, and Wi-Fi/LTE concurrency. These are vendor feature descriptions, not independent measurements of game frame rates. A phone’s display, thermal limits and game settings affect the experience.
Display, memory and camera ceilings
The platform can support memory up to 2,133MHz and Full HD+ displays up to 120Hz. MediaTek also lists camera designs up to 108MP and 16+16MP dual-camera support with zero-shutter-lag in its infographic. These are maximum or supported configurations: they do not mean every G99 phone has a 120Hz screen, uses memory at that speed or takes high-quality 108MP photos. Image quality depends on the particular phone’s sensor, optics, processing and implementation.
Rank #3
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- 【MediaTek Helio G99 & 16GB + 256GB】2.2GHz 8-core CPU and powerhouse 6nm Soc, 8GB RAM (up to 8GB of virtual RAM) allows multiple memory-hungry apps to run snappily at the same time. 256GB of internal storage as well as TF card expansion supported 2TB.
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- 【6200mAh sub-zero solid-state Battery】Never will shut down in extreme cold as low as -20 degrees. Enabled the ultra power saving mode can outlast the standby time to up to 26 day. It also supports 33W Fast Charge, 15W Wireless Charging and Reverse Charging.
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Is Helio G99 a 5G chipset?
No. The Helio G99 is a 4G LTE platform. MediaTek lists LTE-A Cat-13 downlink and dual 4G VoLTE; it does not list 5G connectivity for this chipset. A phone marketed with a Helio G99 should therefore be understood as a 4G model, with exact supported bands depending on the handset and market.
How to use the numbers when choosing a Helio G99 phone
The practical comparison is between complete phones, not an abstract chip score. The Samsung Galaxy A15 is one example of a device listed with the Helio G99 in Notebookcheck’s device table, but its configuration and results do not represent every G99 handset. Compare the exact regional model and configuration you are considering, then look at its own testing and specifications for memory, storage, cooling, display, battery and software support. A high result from another model cannot guarantee the same performance in the phone you buy.
Quick Recap
Rank #4
- Size: 6.78 inch CPU: MTK6789 Helio G99 6nm, octa-core, 2 x A76 2.2GHz + 6 x A55 2.0GHz Operating system: Android 13
- Memory: 8GB(+8GB virtual up to 16GB) RAM+128GB ROM / Storage Extend: TF card up to 512GB (not included)
- Cameras: 1. Rear Camera: 64MP + 0.3MP S5KGW3SP03 F1.79 2. Front camera: 13MP S5K3L6 F2.0
- Battery: 5000mAh polymer lithium ion battery Charge: 9V/3A 33W
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