Qualcomm Snapdragon 821 vs AMD FX-6100

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CPU comparison with benchmarks


Qualcomm Snapdragon 821 CPU1 vs CPU2 AMD FX-6100
Qualcomm Snapdragon 821 AMD FX-6100

CPU comparison

Qualcomm Snapdragon 821 or AMD FX-6100 - 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 Qualcomm Snapdragon 821 has 4 cores with 4 threads and clocks with a maximum frequency of 2.40 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 821 was released in Q3/2016.

The AMD FX-6100 has 6 cores with 6 threads and clocks with a maximum frequency of 3.90 GHz. The CPU supports up to GB of memory in 2 memory channels. The AMD FX-6100 was released in Q4/2011.
Qualcomm Snapdragon (102) Family AMD FX (30)
Qualcomm Snapdragon 820 (3) CPU group AMD FX-6100/6200 (3)
3 Generation 1
Kryo Architecture Zambezi (Bulldozer)
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 821 is a 4 core processor with a clock frequency of 2.40 GHz. The AMD FX-6100 has 6 CPU cores with a clock frequency of 3.30 GHz (3.90 GHz).

Qualcomm Snapdragon 821 Characteristic AMD FX-6100
4 Cores 6
4 Threads 6
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading No
No Overclocking ? Yes
2.40 GHz
2x Kryo
A-Core 3.30 GHz (3.90 GHz)
1.60 GHz
2x Kryo
B-Core --

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.

Qualcomm Snapdragon 821 Characteristic AMD FX-6100
Qualcomm AI engine AI hardware --
Hexagon 680 AI specifications --

Internal Graphics

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.

Qualcomm Adreno 530 GPU no iGPU
0.62 GHz GPU frequency --
0.62 GHz GPU (Turbo) --
5 GPU Generation --
14 nm Technology
0 Max. displays
-- Compute units --
256 Shader --
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
11,1 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.

Qualcomm Adreno 530 GPU no iGPU
Decode Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 No
Decode Codec VP9 No
Decode Codec VP8 No
No Codec AV1 No
No Codec AVC No
Decode Codec VC-1 No
Decode Codec JPEG No

Memory & PCIe

The Qualcomm Snapdragon 821 supports a maximum of 8 GB of memory in 2 memory channels. The AMD FX-6100 can connect up to GB of memory in 2 memory channels.

Qualcomm Snapdragon 821 Characteristic AMD FX-6100
LPDDR4-3733 Memory DDR3-1866
8 GB Max. Memory
2 (Dual Channel) Memory channels 2 (Dual Channel)
14.9 GB/s Max. Bandwidth 29.9 GB/s
No ECC Yes
-- L2 Cache --
-- L3 Cache 8.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Qualcomm Snapdragon 821 has a TDP of --, that of the AMD FX-6100 is 95 W.

Qualcomm Snapdragon 821 Characteristic AMD FX-6100
-- TDP (PL1 / PBP) 95 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Qualcomm Snapdragon 821 has a 0.00 MB cache, while the AMD FX-6100 cache has a total of 8.00 MB.

Qualcomm Snapdragon 821 Characteristic AMD FX-6100
14 nm Technology 32 nm
Chiplet Chip design Unknown
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4.1, SSE4.2, AVX
-- Socket AM3+
None Virtualization AMD-V
No AES-NI Yes
Android Operating systems Windows 10, Linux
Q3/2016 Release date Q4/2011
-- Release price 100 $
show more data show more data


Rate these processors

Here you can rate the Qualcomm Snapdragon 821 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:
Here you can rate the AMD FX-6100 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Qualcomm Snapdragon 821 (72%)
AMD FX-6100 (100%)
⌀ Multi core performance in 2 CPU benchmarks
Qualcomm Snapdragon 821 (40%)
AMD FX-6100 (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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
341 (72%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
471 (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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
864 (50%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
1713 (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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
1594 (29%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
5418 (100%)

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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
370 (100%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
0 (0%)

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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
752 (100%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
0 (0%)

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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz
476 (100%)
AMD FX-6100 AMD FX-6100
@ 0.00 GHz
0 (0%)

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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
0 (0%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.30 GHz
853 (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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
0 (0%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
73 (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.
Qualcomm Snapdragon 821 Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz
0 (0%)
AMD FX-6100 AMD FX-6100
6C 6T @ 3.90 GHz
345 (100%)

Devices using this processor

Qualcomm Snapdragon 821 AMD FX-6100
Unknown Unknown

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