Intel Atom Z2520 vs Intel Atom Z3785

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CPU comparison with benchmarks


Intel Atom Z2520 CPU1 vs CPU2 Intel Atom Z3785
Intel Atom Z2520 Intel Atom Z3785

CPU comparison

In this CPU comparison, we compare the Intel Atom Z2520 and the Intel Atom Z3785 and use benchmarks to check which processor is faster.

We compare the Intel Atom Z2520 2 core processor released in Q2/2013 with the Intel Atom Z3785 which has 4 CPU cores and was introduced in Q2/2014.
Intel Atom (108) Family Intel Atom (108)
Intel Atom Z2500/Z2700 (3) CPU group Intel Atom Z3700 (16)
2 Generation 4
Cloverview Architecture Bay Trail
Mobile Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Atom Z2520 is a 2 core processor with a clock frequency of 1.20 GHz. The processor can compute 4 threads at the same time. The Intel Atom Z3785 clocks with 1.49 GHz (2.41 GHz), has 4 CPU cores and can calculate 4 threads in parallel.
Intel Atom Z2520 Characteristic Intel Atom Z3785
2 Cores 4
4 Threads 4
normal Core architecture normal
Yes Hyperthreading No
No Overclocking ? No
1.20 GHz Frequency 1.49 GHz
-- Turbo Frequency (1 Core) 2.41 GHz
-- Turbo Frequency (All Cores) --

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.
Intel Atom Z2520 Characteristic Intel Atom Z3785
-- 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.
PowerVR SGX544 MP2 GPU Intel HD Graphics (Bay Trail GT1)
0.30 GHz GPU frequency 0.31 GHz
-- GPU (Turbo) 0.83 GHz
-- GPU Generation 7
45nm Technology 22 nm
2 Max. displays 2
4 Compute units 4
8 Shader 32
No Hardware Raytracing No
No Frame Generation No
-- Max. GPU Memory 2 GB
10.1 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.
PowerVR SGX544 MP2 GPU Intel HD Graphics (Bay Trail GT1)
No Codec h265 / HEVC (8 bit) No
No Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 No
Decode Codec VP8 No
No Codec AV1 No
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode

Memory & PCIe

Up to 2 GB of memory in a maximum of 2 memory channels is supported by the Intel Atom Z2520, while the Intel Atom Z3785 supports a maximum of 4 GB of memory with a maximum memory bandwidth of 21.3 GB/s enabled.
Intel Atom Z2520 Characteristic Intel Atom Z3785
LPDDR2-1066 Memory LPDDR3-1333
2 GB Max. Memory 4 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
8.5 GB/s Max. Bandwidth 21.3 GB/s
No ECC No
1.00 MB L2 Cache --
-- L3 Cache 2.00 MB
-- PCIe version --
-- PCIe lanes --
-- PCIe Bandwidth --

Thermal Management

The Intel Atom Z2520 has a TDP of --. The TDP of the Intel Atom Z3785 is 4 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
Intel Atom Z2520 Characteristic Intel Atom Z3785
-- TDP (PL1 / PBP) 4 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
90 °C Tjunction max. 90 °C

Technical details

The Intel Atom Z2520 has 1.00 MB cache and is manufactured in 32 nm. The cache of Intel Atom Z3785 is at 2.00 MB. The processor is manufactured in 22 nm.
Intel Atom Z2520 Characteristic Intel Atom Z3785
32 nm Technology 22 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE3, SSSE3 ISA extensions SSE4.1, SSE4.2
BGA Socket BGA 1380
None Virtualization VT-x, VT-x EPT
No AES-NI Yes
Operating systems
Q2/2013 Release date Q2/2014
-- Release price --
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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.
Intel Atom Z2520 Intel Atom Z2520
PowerVR SGX544 MP2 @ 0.30 GHz
0 (0%)
Intel Atom Z3785 Intel Atom Z3785
Intel HD Graphics (Bay Trail GT1) @ 0.83 GHz
53 (100%)

Devices using this processor
Intel Atom Z2520 Intel Atom Z3785
Unknown Unknown

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