Qualcomm Snapdragon 820 Lite vs Intel Atom Z3775D

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CPU comparison with benchmarks


Qualcomm Snapdragon 820 Lite CPU1 vs CPU2 Intel Atom Z3775D
Qualcomm Snapdragon 820 Lite Intel Atom Z3775D

CPU comparison

Qualcomm Snapdragon 820 Lite or Intel Atom Z3775D - 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 820 Lite has 4 cores with 4 threads and clocks with a maximum frequency of 1.80 GHz. Up to 8 GB of memory is supported in 4 memory channels. The Qualcomm Snapdragon 820 Lite was released in Q1/2016.

The Intel Atom Z3775D has 4 cores with 4 threads and clocks with a maximum frequency of 2.41 GHz. The CPU supports up to 2 GB of memory in 1 memory channels. The Intel Atom Z3775D was released in Q1/2014.
Qualcomm Snapdragon (102) Family Intel Atom (108)
Qualcomm Snapdragon 820 (3) CPU group Intel Atom Z3700 (16)
3 Generation 4
Kryo Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Qualcomm Snapdragon 820 Lite has 4 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Qualcomm Snapdragon 820 Lite is 1.80 GHz while the Intel Atom Z3775D has 4 CPU cores and 4 threads can calculate simultaneously. The clock frequency of the Intel Atom Z3775D is at 1.49 GHz (2.41 GHz).
Qualcomm Snapdragon 820 Lite Characteristic Intel Atom Z3775D
4 Cores 4
4 Threads 4
hybrid (big.LITTLE) Core architecture normal
No Hyperthreading No
No Overclocking ? No
1.80 GHz
2x Kryo		 A-Core 1.49 GHz (2.41 GHz)
1.36 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 820 Lite Characteristic Intel Atom Z3775D
-- AI hardware --
-- AI specifications --

Internal Graphics

The Qualcomm Snapdragon 820 Lite or Intel Atom Z3775D 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 530 GPU Intel HD Graphics (Bay Trail GT1)
0.51 GHz GPU frequency 0.31 GHz
0.51 GHz GPU (Turbo) 0.79 GHz
5 GPU Generation 7
14 nm Technology 22 nm
0 Max. displays 2
-- Compute units 4
256 Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
11,1 DirectX Version 11.2

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 Intel HD Graphics (Bay Trail GT1)
Decode Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode Codec h264 Decode / Encode
Decode Codec VP9 No
Decode Codec VP8 No
No Codec AV1 No
No Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode Codec JPEG Decode

Memory & PCIe

The Qualcomm Snapdragon 820 Lite can use up to 8 GB of memory in 4 memory channels. The maximum memory bandwidth is 10.7 GB/s. The Intel Atom Z3775D supports up to 2 GB of memory in 1 memory channels and achieves a memory bandwidth of up to 10.6 GB/s.
Qualcomm Snapdragon 820 Lite Characteristic Intel Atom Z3775D
LPDDR4-1333 Memory DDR3L-1333
8 GB Max. Memory 2 GB
4 (Quad Channel) Memory channels 1 (Single Channel)
10.7 GB/s Max. Bandwidth 10.6 GB/s
No ECC No
-- L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The thermal design power (TDP for short) of the Qualcomm Snapdragon 820 Lite is --, while the Intel Atom Z3775D has a TDP of 4 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.
Qualcomm Snapdragon 820 Lite Characteristic Intel Atom Z3775D
-- TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. 90 °C

Technical details

The Qualcomm Snapdragon 820 Lite is manufactured in 14 nm and has 0.00 MB cache. The Intel Atom Z3775D is manufactured in 22 nm and has a 2.00 MB cache.
Qualcomm Snapdragon 820 Lite Characteristic Intel Atom Z3775D
14 nm Technology 22 nm
Chiplet Chip design Monolithic
Armv8-A (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- ISA extensions SSE4.1, SSE4.2
-- Socket BGA 1380
None Virtualization VT-x, VT-x EPT
No AES-NI Yes
Android Operating systems
Q1/2016 Release date Q1/2014
-- Release price 35 $
show more data show more data


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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 820 Lite Qualcomm Snapdragon 820 Lite
Qualcomm Adreno 530 @ 0.51 GHz
407 (100%)
Intel Atom Z3775D Intel Atom Z3775D
Intel HD Graphics (Bay Trail GT1) @ 0.79 GHz
51 (12%)

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 820 Lite Qualcomm Snapdragon 820 Lite
4C 4T @ 1.80 GHz
335 (100%)
Intel Atom Z3775D Intel Atom Z3775D
4C 4T @ 2.41 GHz
0 (0%)

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 820 Lite Qualcomm Snapdragon 820 Lite
4C 4T @ 1.80 GHz
864 (100%)
Intel Atom Z3775D Intel Atom Z3775D
4C 4T @ 1.49 GHz
0 (0%)

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 820 Lite Qualcomm Snapdragon 820 Lite
4C 4T @ 1.80 GHz
0 (0%)
Intel Atom Z3775D Intel Atom Z3775D
4C 4T @ 1.49 GHz
794 (100%)

Devices using this processor
Qualcomm Snapdragon 820 Lite Intel Atom Z3775D
Unknown Unknown

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