AMD A8-3820 vs AMD FX-8320

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CPU comparison with benchmarks


AMD A8-3820 CPU1 vs CPU2 AMD FX-8320
AMD A8-3820 AMD FX-8320

CPU comparison

In this CPU comparison, we compare the AMD A8-3820 and the AMD FX-8320 and use benchmarks to check which processor is faster.

We compare the AMD A8-3820 4 core processor released in Q4/2011 with the AMD FX-8320 which has 8 CPU cores and was introduced in Q4/2012.
AMD A (112) Family AMD FX (30)
AMD A8-3000 (4) CPU group AMD FX-8000 (11)
1 Generation 2
Llano (K10) Architecture Vishera (Bulldozer)
Desktop / Server Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD A8-3820 is a 4 core processor with a clock frequency of 2.50 GHz (2.80 GHz). The processor can compute 4 threads at the same time. The AMD FX-8320 clocks with 3.50 GHz (4.00 GHz), has 8 CPU cores and can calculate 8 threads in parallel.

AMD A8-3820 Characteristic AMD FX-8320
4 Cores 8
4 Threads 8
normal Core architecture normal
No Hyperthreading No
Yes Overclocking ? Yes
2.50 GHz Frequency 3.50 GHz
2.80 GHz Turbo Frequency (1 Core) 4.00 GHz
2.80 GHz Turbo Frequency (All Cores) 3.75 GHz

Artificial Intelligence and Machine Learning

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. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

AMD A8-3820 Characteristic AMD FX-8320
-- AI hardware --
-- AI specifications --

Internal Graphics

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.

AMD Radeon HD 6550D GPU no iGPU
0.60 GHz GPU frequency --
-- GPU (Turbo) --
3 GPU Generation --
32 nm Technology
2 Max. displays
5 Compute units --
400 Shader --
No Hardware Raytracing No
No Frame Generation No
1 GB Max. GPU Memory --
11 DirectX Version --

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.

AMD Radeon HD 6550D GPU no iGPU
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
No Codec VP9 No
No Codec VP8 No
No Codec AV1 No
Decode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

Up to GB of memory in a maximum of 2 memory channels is supported by the AMD A8-3820, while the AMD FX-8320 supports a maximum of GB of memory with a maximum memory bandwidth of -- enabled.

AMD A8-3820 Characteristic AMD FX-8320
DDR3-1600 Memory DDR3-1866
Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
25.6 GB/s Max. Bandwidth --
No ECC Yes
-- L2 Cache --
4.00 MB L3 Cache 8.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The AMD A8-3820 has a TDP of 65 W. The TDP of the AMD FX-8320 is 125 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD A8-3820 Characteristic AMD FX-8320
65 W TDP (PL1 / PBP) 125 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The AMD A8-3820 has 4.00 MB cache and is manufactured in 32 nm. The cache of AMD FX-8320 is at 8.00 MB. The processor is manufactured in 32 nm.

AMD A8-3820 Characteristic AMD FX-8320
32 nm Technology 32 nm
Unknown Chip design Unknown
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE3, SSE4a ISA extensions SSE4.1, SSE4.2, AVX, FMA3, FMA4
FM1 Socket AM3+
AMD-V Virtualization AMD-V
No AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q4/2011 Release date Q4/2012
85 $ Release price 125 $
show more data show more data


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Here you can rate the AMD FX-8320 to help other visitors make their purchasing decisions. The average rating is 1.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
⌀ Multi core performance in 2 CPU benchmarks

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.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
354 (68%)
AMD FX-8320 AMD FX-8320
8C 8T @ 4.00 GHz
522 (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.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
1264 (51%)
AMD FX-8320 AMD FX-8320
8C 8T @ 3.75 GHz
2489 (100%)

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.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
2162 (26%)
AMD FX-8320 AMD FX-8320
8C 8T @ 3.75 GHz
8291 (100%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
0 (0%)
AMD FX-8320 AMD FX-8320
8C 8T @ 4.00 GHz
188 (100%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
0 (0%)
AMD FX-8320 AMD FX-8320
8C 8T @ 3.75 GHz
1082 (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.
AMD A8-3820 AMD A8-3820
AMD Radeon HD 6550D @ 0.60 GHz
480 (100%)
AMD FX-8320 AMD FX-8320
@ 0.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
0 (0%)
AMD FX-8320 AMD FX-8320
8C 8T @ 3.75 GHz
223 (100%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.50 GHz
0 (0%)
AMD FX-8320 AMD FX-8320
8C 8T @ 3.50 GHz
1350 (100%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
0 (0%)
AMD FX-8320 AMD FX-8320
8C 8T @ 4.00 GHz
91 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD A8-3820 AMD A8-3820
4C 4T @ 2.80 GHz
0 (0%)
AMD FX-8320 AMD FX-8320
8C 8T @ 3.75 GHz
608 (100%)

Devices using this processor

AMD A8-3820 AMD FX-8320
Unknown Unknown

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