Qualcomm Snapdragon 660 non LTE vs Qualcomm Snapdragon 820

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CPU comparison with benchmarks


Qualcomm Snapdragon 660 non LTE CPU1 vs CPU2 Qualcomm Snapdragon 820
Qualcomm Snapdragon 660 non LTE Qualcomm Snapdragon 820

CPU comparison

Qualcomm Snapdragon 660 non LTE or Qualcomm Snapdragon 820 - 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 660 non LTE has 8 cores with 8 threads and clocks with a maximum frequency of 2.20 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 660 non LTE was released in Q2/2017.

The Qualcomm Snapdragon 820 has 4 cores with 4 threads and clocks with a maximum frequency of 2.15 GHz. The CPU supports up to 12 GB of memory in 4 memory channels. The Qualcomm Snapdragon 820 was released in Q4/2015.
Qualcomm Snapdragon (102) Family Qualcomm Snapdragon (102)
Qualcomm Snapdragon 660 (2) CPU group Qualcomm Snapdragon 820 (3)
5 Generation 3
Kryo 260 Architecture Kryo
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 660 non LTE has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Qualcomm Snapdragon 660 non LTE is 2.20 GHz while the Qualcomm Snapdragon 820 has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Qualcomm Snapdragon 820 is at 2.15 GHz.

Qualcomm Snapdragon 660 non LTE Characteristic Qualcomm Snapdragon 820
8 Cores 4
8 Threads 4
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
No Hyperthreading No
No Overclocking ? No
2.20 GHz
4x Kryo 260 Gold
A-Core 2.15 GHz
2x Kryo
1.84 GHz
4x Kryo 260 Silver
B-Core 1.60 GHz
2x Kryo

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 660 non LTE Characteristic Qualcomm Snapdragon 820
Qualcomm AI engine AI hardware Qualcomm AI engine
Hexagon 680 AI specifications Hexagon 680

Internal Graphics

The Qualcomm Snapdragon 660 non LTE or Qualcomm Snapdragon 820 has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

Qualcomm Adreno 512 GPU Qualcomm Adreno 530
0.60 GHz GPU frequency 0.62 GHz
0.60 GHz GPU (Turbo) 0.62 GHz
5 GPU Generation 5
14 nm Technology 14 nm
0 Max. displays 0
-- Compute units --
128 Shader 256
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory --
11 DirectX Version 11,1

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

Memory & PCIe

The Qualcomm Snapdragon 660 non LTE can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 14.9 GB/s. The Qualcomm Snapdragon 820 supports up to 12 GB of memory in 4 memory channels and achieves a memory bandwidth of up to 14.9 GB/s.

Qualcomm Snapdragon 660 non LTE Characteristic Qualcomm Snapdragon 820
LPDDR4-3733 Memory LPDDR4-3733
8 GB Max. Memory 12 GB
2 (Dual Channel) Memory channels 4 (Quad Channel)
14.9 GB/s Max. Bandwidth 14.9 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache --
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Qualcomm Snapdragon 660 non LTE is --, while the Qualcomm Snapdragon 820 has a TDP of --. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Qualcomm Snapdragon 660 non LTE Characteristic Qualcomm Snapdragon 820
-- TDP (PL1 / PBP) --
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Qualcomm Snapdragon 660 non LTE is manufactured in 14 nm and has 0.00 MB cache. The Qualcomm Snapdragon 820 is manufactured in 14 nm and has a 0.00 MB cache.

Qualcomm Snapdragon 660 non LTE Characteristic Qualcomm Snapdragon 820
14 nm Technology 14 nm
Chiplet Chip design Chiplet
Armv8-A (64 bit) Instruction set (ISA) Armv8-A (64 bit)
-- ISA extensions --
-- Socket --
None Virtualization None
No AES-NI No
Android Operating systems Android
Q2/2017 Release date Q4/2015
-- Release price --
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 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.
Qualcomm Snapdragon 660 non LTE Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz
338 (98%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
344 (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 660 non LTE Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz
1439 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
903 (63%)

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 660 non LTE Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz
350 (95%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
367 (100%)

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 660 non LTE Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz
1288 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
746 (58%)

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 660 non LTE Qualcomm Snapdragon 660 non LTE
Qualcomm Adreno 512 @ 0.60 GHz
154 (32%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
Qualcomm Adreno 530 @ 0.62 GHz
476 (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 660 non LTE Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz
2344 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
1362 (58%)

AnTuTu 8 Benchmark

The AnTuTu 8 Benchmark measures the performance of a SoC. AnTuTu benchmarks the CPU, GPU, Memory as well as the UX (User Experience) by simulating browser and app usage. AnTuTu can benchmark any ARM CPU that runs under Android or iOS. Devices may not be directly compareable if the benchmark has been performed under different operating systems.

In the AnTuTu 8 benchmark, the single-core performance of a processor is only slightly weighted. The evaluation consists of the multi-core performance of the processor, the speed of the RAM and the performance of the internal graphics.
Qualcomm Snapdragon 660 non LTE Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz
158369 (100%)
Qualcomm Snapdragon 820 Qualcomm Snapdragon 820
4C 4T @ 2.15 GHz
0 (0%)

Devices using this processor

Qualcomm Snapdragon 660 non LTE Qualcomm Snapdragon 820
Unknown Unknown

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