MediaTek Helio G99 vs MediaTek MT8766B

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CPU comparison with benchmarks


MediaTek Helio G99 CPU1 vs CPU2 MediaTek MT8766B
MediaTek Helio G99 MediaTek MT8766B

CPU comparison

MediaTek Helio G99 or MediaTek MT8766B - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The MediaTek Helio G99 has 8 cores with 8 threads and clocks with a maximum frequency of 2.20 GHz. Up to 12 GB of memory is supported in 2 memory channels. The MediaTek Helio G99 was released in Q3/2022.

The MediaTek MT8766B has 8 cores with 8 threads and clocks with a maximum frequency of 2.00 GHz. The CPU supports up to GB of memory in 0 memory channels. The MediaTek MT8766B was released in Q2/2020.
Mediatek Helio (37) Family Mediatek MT-Serie (72)
MediaTek Helio G99 (1) CPU group MediaTek MT87xx 12nm (1)
1 Generation 2
Cortex-A76 / Cortex-A55 Architecture Cortex-A53
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The MediaTek Helio G99 is a 8 core processor with a clock frequency of 2.20 GHz. The MediaTek MT8766B has 8 CPU cores with a clock frequency of 2.00 GHz.

MediaTek Helio G99 Characteristic MediaTek MT8766B
8 Cores 8
8 Threads 8
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading No
No Overclocking ? No
2.20 GHz
2x Cortex-A76
A-Core 2.00 GHz
8x Cortex-A53
2.00 GHz
6x Cortex-A55
B-Core --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

MediaTek Helio G99 Characteristic MediaTek MT8766B
Mediatek APU AI hardware --
MediaTek APU 2 @ 1 TOPS AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

ARM Mali-G57 MP2 GPU PowerVR GE8300
0.25 GHz GPU frequency 0.01 GHz
1.07 GHz GPU (Turbo) --
Vallhall 1 GPU Generation --
7 nm Technology 20 nm
2 Max. displays 1
2 Compute units 1
32 Shader --
No Hardware Raytracing No
No Frame Generation No
4 GB Max. GPU Memory 2 GB
12 DirectX Version 10

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

ARM Mali-G57 MP2 GPU PowerVR GE8300
Decode / Encode Codec h265 / HEVC (8 bit) Decode
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
Decode Codec AV1 No
Decode / Encode Codec AVC No
Decode / Encode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

The MediaTek Helio G99 supports a maximum of 12 GB of memory in 2 memory channels. The MediaTek MT8766B can connect up to GB of memory in 0 memory channels.

MediaTek Helio G99 Characteristic MediaTek MT8766B
LPDDR4X-4266 Memory LPDDR4, LPDDR3
12 GB Max. Memory
2 (Dual Channel) Memory channels 0
34.1 GB/s Max. Bandwidth --
No ECC No
-- L2 Cache 1.00 MB
-- L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The MediaTek Helio G99 has a TDP of --, that of the MediaTek MT8766B is --.

MediaTek Helio G99 Characteristic MediaTek MT8766B
-- TDP (PL1 / PBP) --
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The MediaTek Helio G99 has a 0.00 MB cache, while the MediaTek MT8766B cache has a total of 1.00 MB.

MediaTek Helio G99 Characteristic MediaTek MT8766B
6 nm Technology 12 nm
Chiplet Chip design Chiplet
Armv8-A (64 bit) Instruction set (ISA) Armv8-A (64 bit)
-- ISA extensions --
-- Socket --
None Virtualization None
No AES-NI No
Android Operating systems Android
Q3/2022 Release date Q2/2020
-- Release price --
show more data show more data


Rate these processors

Here you can rate the MediaTek Helio G99 to help other visitors make their purchasing decisions. The average rating is 4.2 stars (71 ratings). Rate now:
Here you can rate the MediaTek MT8766B to help other visitors make their purchasing decisions. The average rating is 2.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
MediaTek Helio G99 (100%)
MediaTek MT8766B (28%)
⌀ Multi core performance in 3 CPU benchmarks
MediaTek Helio G99 (100%)
MediaTek MT8766B (25%)

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
543 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
163 (30%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
1814 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
546 (30%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
712 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
179 (25%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
1874 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
508 (27%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
4243 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
770 (18%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
MediaTek Helio G99 MediaTek Helio G99
ARM Mali-G57 MP2 @ 1.07 GHz
274 (100%)
MediaTek MT8766B MediaTek MT8766B
PowerVR GE8300 @ 0.01 GHz
0 (0%)

AnTuTu 10 Benchmark

The AnTuTu 10 benchmark is one of the best-known benchmarks for mobile processors, which is now available in version 10. There is a version for Android-based smartphones and tablets, as well as a version for Apple mobile devices, i.e. iPhones and iPads.

The Antutu 10 benchmark has 3 phases. In the first phase, the device's RAM is tested, in phase 2 the graphics are tested and in the final phase the entire device is pushed to its performance limits by rendering 3D graphics.

Antutu 10 is therefore ideal for comparing the performance of different devices.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
423245 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
0 (0%)

AnTuTu 9 Benchmark

The AnTuTu 9 benchmark is very well suited to measuring the performance of a smartphone. AnTuTu 9 is quite heavy on 3D graphics and can now also use the "Metal" graphics interface. In AnTuTu, memory and UX (user experience) are also tested by simulating browser and app usage. AnTuTu version 9 can compare any ARM CPU running on Android or iOS. Devices may not be directly comparable when benchmarked on different operating systems.

In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
369410 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
0 (0%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
MediaTek Helio G99 MediaTek Helio G99
8C 8T @ 2.20 GHz
1 (100%)
MediaTek MT8766B MediaTek MT8766B
8C 8T @ 2.00 GHz
0 (0%)

Devices using this processor

MediaTek Helio G99 MediaTek MT8766B
Unknown Unknown

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