HiSilicon Kirin 655 vs AMD Ryzen Threadripper 3990X

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CPU comparison with benchmarks

-VS-

CPU lineage

HiSilicon Kirin 655 or HiSilicon Kirin 655 – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The HiSilicon Kirin 655 features 8 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q2/2016 and belongs to the 4 generation of the HiSilicon Kirin series.
The AMD Ryzen Threadripper 3990X features 64 processor cores and has the capability to manage 128 threads concurrently.
It was released in Q1/2020 and belongs to the 3 generation of the AMD Ryzen Threadripper series.
To use the AMD Ryzen Threadripper 3990X, you'll need a motherboard with a TRX4 (sTRX4) socket.
HiSilicon Kirin 650 Group AMD Ryzen Threadripper 3000
4 Generation 3
HiSilicon Kirin 655 Name AMD Ryzen Threadripper 3990X
Mobile Segment Desktop / Server
HiSilicon Kirin Family AMD Ryzen Threadripper
 
 

CPU Cores and Base Frequency

The HiSilicon Kirin 655 has 8 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the A-Core is 2.12 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
The AMD Ryzen Threadripper 3990X has 64 CPU cores and can calculate 128 threads in parallel.
The clock frequency of the AMD Ryzen Threadripper 3990X is 2.9 GHz
and turbo frequency for one core is 4.3 GHz.
1.7 GHz B-Core Frequency None
None None 4.3 GHz
None None 64x
hybrid (big.LITTLE) Core architecture normal
4x Cortex-A53 Cores A None
8 CPU Cores 64
No Overclocking Yes
None None 2.9 GHz
No Hyperthreading Yes
2.12 GHz A-Core Frequency None
4x Cortex-A53 Cores B None
8 Threads 128
 
 

Internal Graphics

The HiSilicon Kirin 655 has integrated graphics, called iGPU for short.
Specifically, the HiSilicon Kirin 655 uses the ARM Mali-T830 MP2, which has 32 texture shaders
and 2 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The AMD Ryzen Threadripper 3990X does not have integrated graphics.
-- GPU (Turbo) --
28 nm Technology --
11 Direct X --
0 bytes Max. GPU Memory 0 bytes
2 Execution units --
Q4/2015 Release date --
ARM Mali-T830 MP2 GPU name
32 Shaders --
0.9 GHz GPU frequency --
Midgard 4 Generation --
-- Max. displays --
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

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.
Decode / Encode h265 / HEVC (8 bit) --
No VP9 --
Decode / Encode VP8 --
No VC-1 --
Decode / Encode JPEG --
Decode / Encode h264 --
Decode h265 / HEVC (10 bit) --
No AVC --
No AV1 --
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 2.0 TB distributed across 4 memory channels. It offers a peak memory bandwidth of 102.4 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
LPDDR3-933 Memory type DDR4-3200
-- Bandwidth 102.4 GB/s
No AES-NI Yes
No ECC Yes
pci PCIe pci
0 bytes Max. Memory 2.0 TB
2 Memory channels 4
 
 

Thermal Management

TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 280 W watts.
None TDP (PL1 / PBP) 280 W
-- Tjunction max 95 °C
 
 

Technical details

The HiSilicon Kirin 655 is manufactured using a 16 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The AMD Ryzen Threadripper 3990X is manufactured using a 7 nm process.
In total, this processor boasts a generous 256.0 MB cache.
None Virtualization AMD-V, SVM
16 nm Technology 7 nm
ARMv8-A64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
ISA extensions SSE4a, SSE4.1, SSE4.2, FMA3, AVX2
-- Part Number --
Chiplet Chip design Chiplet
Q2/2016 Release date Q1/2020
-- Release price 3990 $
0 bytes L2-Cache 32.0 MB
Technical data sheet Documents Technical data sheet
0 bytes L3-Cache 256.0 MB
Socket TRX4 (sTRX4)
Android Operating systems Windows 10, Linux, Windows 11
Cortex-A53 / Cortex-A53 Architecture Castle Peak (Zen 2)
 
 

Benchmarks