MediaTek MT8321 vs UNISOC SC9863A

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CPU comparison with benchmarks


MediaTek MT8321 CPU1 vs CPU2 UNISOC SC9863A
MediaTek MT8321 UNISOC SC9863A

CPU comparison

In this CPU comparison, we compare the MediaTek MT8321 and the UNISOC SC9863A and use benchmarks to check which processor is faster.

We compare the MediaTek MT8321 4 core processor released in Q2/2014 with the UNISOC SC9863A which has 8 CPU cores and was introduced in Q2/2019.
Mediatek MT-Serie (72) Family UNISOC 4G (10)
MediaTek MT83xx A7 (6) CPU group UNISOC 4G 28nm (2)
1 Generation 0
Cortex-A7 Architecture --
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The MediaTek MT8321 is a 4 core processor with a clock frequency of 1.30 GHz. The processor can compute 4 threads at the same time. The UNISOC SC9863A clocks with 1.20 GHz, has 8 CPU cores and can calculate 8 threads in parallel.

MediaTek MT8321 Characteristic UNISOC SC9863A
4 Cores 8
4 Threads 8
normal Core architecture hybrid (big.LITTLE)
No Hyperthreading No
No Overclocking ? No
1.30 GHz
4x Cortex-A7
A-Core 1.20 GHz
4x Cortex-A55
-- B-Core 1.60 GHz
4x Cortex-A55

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 MT8321 Characteristic UNISOC SC9863A
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

ARM Mali-400 GPU PowerVR GE8322
0.01 GHz GPU frequency 0.55 GHz
0.01 GHz GPU (Turbo) --
Utgard GPU Generation --
28nm Technology 20 nm
1 Max. displays 1
1 Compute units 1
16 Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
0 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-400 GPU PowerVR GE8322
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
No Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
No Codec AVC No
No Codec VC-1 No
No Codec JPEG No

Memory & PCIe

Up to GB of memory in a maximum of 0 memory channels is supported by the MediaTek MT8321, while the UNISOC SC9863A supports a maximum of GB of memory with a maximum memory bandwidth of -- enabled.

MediaTek MT8321 Characteristic UNISOC SC9863A
Memory LPDDR4X, LPDDR4, LPDDR3
Max. Memory
0 Memory channels 0
-- Max. Bandwidth --
No ECC No
-- L2 Cache --
-- L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The MediaTek MT8321 has a TDP of --. The TDP of the UNISOC SC9863A is --. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

MediaTek MT8321 Characteristic UNISOC SC9863A
-- TDP (PL1 / PBP) --
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The MediaTek MT8321 has 0.00 MB cache and is manufactured in 28 nm. The cache of UNISOC SC9863A is at 0.00 MB. The processor is manufactured in 28 nm.

MediaTek MT8321 Characteristic UNISOC SC9863A
28 nm Technology 28 nm
Chiplet Chip design Unknown
Armv7-A (32 bit) Instruction set (ISA) Armv8-A (64 bit)
-- ISA extensions --
-- Socket --
None Virtualization None
No AES-NI No
Android Operating systems Android
Q2/2014 Release date Q2/2019
-- Release price --
show more data show more data


Rate these processors

Here you can rate the MediaTek MT8321 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:
Here you can rate the UNISOC SC9863A to help other visitors make their purchasing decisions. The average rating is 3.3 stars (3 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
MediaTek MT8321 (48%)
UNISOC SC9863A (100%)
⌀ Multi core performance in 1 CPU benchmarks
MediaTek MT8321 (32%)
UNISOC SC9863A (100%)

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 MT8321 MediaTek MT8321
4C 4T @ 1.30 GHz
71 (48%)
UNISOC SC9863A UNISOC SC9863A
8C 8T @ 1.20 GHz
147 (100%)

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 MT8321 MediaTek MT8321
4C 4T @ 1.30 GHz
242 (32%)
UNISOC SC9863A UNISOC SC9863A
8C 8T @ 1.20 GHz
768 (100%)

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 MT8321 MediaTek MT8321
ARM Mali-400 @ 0.01 GHz
0 (0%)
UNISOC SC9863A UNISOC SC9863A
PowerVR GE8322 @ 0.55 GHz
35 (100%)

Devices using this processor

MediaTek MT8321 UNISOC SC9863A
Unknown Unknown

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