Unisoc UIS7862 vs Unisoc UIS8581A

Unisoc UIS7862 on Amazon USA
Unisoc UIS8581A on Amazon USA

Comparison of the technical characteristics between the processors, with the Unisoc UIS7862 on one side and the Unisoc UIS8581A on the other side, also their respective performances with the benchmarks. The first is dedicated to the tablet sector, It has 8 cores, 8 threads, a maximum frequency of 1.8GHz. The second is used on the console segment, it has a total of 4 cores, 4 threads, its turbo frequency is set to 1.6 GHz. The following table also compares the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the release date, the maximum number of PCIe lanes, the values ​​obtained in Geekbench and Cinebench.

Specification comparison:

Processor Unisoc UIS7862 Unisoc UIS8581A
Market (main)Tablet Console
ISAARMv8.2-A (64-bit) ARMv8.2-A (64-bit)
MicroarchitectureCortex-A75, Cortex-A55 Cortex-A55
FamilyUIS7000 SC8000
Part number(s), S-Spec

UIS7862, Spreadtrum UIS7862

UIS8581A, Spreadtrum UIS8581A
Release dateQ2 2020 Q4 2018
Lithography12 nm 28 nm HPC+
Cores8 4
Threads8 4
Base frequency1.8 GHz 1.2 GHz
Turbo frequency- 1.6 GHz
Energy cores

6x ARM Cortex-A55 @ 1.8 GHz

4x ARM Cortex-A55 @ 1.2 GHz
High performance cores

2x ARM Cortex-A75 @ 1.8 GHz

4x ARM Cortex-A55 @ 1.6 GHz
Cache memory2 MB 256 KB
Max memory capacity6 GB 3 GB
Memory types


Max # of memory channels2 2
TDP10 W 3 W
GPU integrated graphicsARM Mali-G52 MP2 Imagination PowerVR GE8322
GPU execution units2 4
GPU shading units32 128
GPU clock614 MHz -
GPU FP32 floating point54.4 GFLOPS 128 GFLOPS
SocketSoC SoC
Drystone MIPS52,322 DMIPS 31,831 DMIPS
DSPBD37534FV -
Max display resolution

1280 x 720

BluetoothBluetooth 5.0 -
AnTuTu87,765 74,462
PassMark CPU Mark
2,074 1,507
Geekbench 4 single core
1,726 827
Geekbench 4 multi-core
5,053 3,316
Geekbench 5 single core
349 143
Geekbench 5 multi-core
1,218 677
GFLOPS Performance
(Multi-core / watt performance)
Performance / watt ratio
505 pts / W 1,105 pts / W

We can better compare what are the technical differences between the two processors.

Price: For technical reasons, we cannot currently display a price less than 24 hours, or a real-time price. This is why we prefer for the moment not to show a price. You should refer to the respective online stores for the latest price, as well as availability.

The processor Unisoc UIS7862 has more cores, the maximum frequency of Unisoc UIS7862 is greater, that the thermal dissipation power of Unisoc UIS8581A is less. The Unisoc UIS7862 was designed earlier.

Performance comparison with the benchmarks:

Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench.

AnTuTu - Total Score
Unisoc UIS7862 87,765
Unisoc UIS8581A 74,462

The difference is 18%.

AnTuTu is one of the most popular apps in the world to evaluate and compare the power of a mobile device with the competition. It tests above all the power of calculation, the display of Web pages, the modeling of decorations in 3D, the management of the memory, the transfer of data.

Android PassMark - CPU Mark
Unisoc UIS7862 2,074
Unisoc UIS8581A 1,507

The difference in performance is 38%.

PassMark is a benchmarking software that performs several performance tests including prime numbers, integers, floating point, compression, physics, extended instructions, encoding, sorting. The higher the score is, the higher is the device capacity.

With Android:

Geekbench 4 - Multi-core & Single Core Score - Android
Unisoc UIS7862 1,726
Unisoc UIS8581A 827

In single core, the difference is 109%. In multi-core, the differential gap is 52%.

Geekbench 4 is a complete benchmark platform with several types of tests, including data compression, images, AES encryption, SQL encoding, HTML, PDF file rendering, matrix computation, Fast Fourier Transform, 3D object simulation, photo editing, memory testing. This allows us to better visualize the respective power of these devices. For each result, we took an average of 250 values on the famous benchmark software.

With Android:

Geekbench 5 - Multi-core & Single Core Score - Android
Unisoc UIS7862 349
Unisoc UIS8581A 143

In single core, the difference is 144%. In multi-core, the differential gap is 80%.

Geekbench 5 is a software for measuring the performance of a computer system, for fixed devices, mobile devices, servers. This platform makes it possible to better compare the power of the CPU, the computing power and to compare it with similar or totally different systems. Geekbench 5 includes new workloads that represent work tasks and applications that we can find in reality.


Unisoc UIS7862 Intel EquivalentUnisoc UIS7862 AMD EquivalentUnisoc UIS8581A Intel EquivalentUnisoc UIS8581A AMD Equivalent

See also:

Unisoc UIS7862AUnisoc UIS7862S

Unisoc UIS8581

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