Intel Atom Z2520 vs Intel Core Ultra 7 165U

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CPU comparison with benchmarks


Intel Atom Z2520 CPU1 vs CPU2 Intel Core Ultra 7 165U
Intel Atom Z2520 Intel Core Ultra 7 165U

CPU comparison

In this CPU comparison, we compare the Intel Atom Z2520 and the Intel Core Ultra 7 165U 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 Core Ultra 7 165U which has 12 CPU cores and was introduced in Q4/2023.
Intel Atom (108) Family Intel Core Ultra 7 (9)
Intel Atom Z2500/Z2700 (3) CPU group Intel Core Ultra 100U (7)
2 Generation 1
Cloverview Architecture Meteor Lake U
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 Core Ultra 7 165U clocks with 1.70 GHz (4.90 GHz), has 12 CPU cores and can calculate 14 threads in parallel.

Intel Atom Z2520 Characteristic Intel Core Ultra 7 165U
2 Cores 12
4 Threads 14
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading Yes
No Overclocking ? No
1.20 GHz A-Core 1.70 GHz (4.90 GHz)
2x Redwood Cove
-- B-Core 1.20 GHz (3.80 GHz)
8x Crestmont
-- C-Core 0.70 GHz (2.10 GHz)
2x Crestmont

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 Core Ultra 7 165U
-- AI hardware Intel AI engine
-- AI specifications Intel AI Boost @ 1.4 GHz (OpenVINO, WindowsML, DirectML, ONNX RT)

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 Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
0.30 GHz GPU frequency 0.60 GHz
-- GPU (Turbo) 2.00 GHz
-- GPU Generation --
45nm Technology 5 nm
2 Max. displays 4
4 Compute units 64
8 Shader 512
No Hardware Raytracing Yes
No Frame Generation No
-- Max. GPU Memory 32 GB
10.1 DirectX Version 12.2

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 Iris Xe 4 Core Graphics 64 EUs (Meteor Lake)
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
No Codec VP9 Decode
Decode Codec VP8 Decode
No Codec AV1 Decode / Encode
No Codec AVC Decode / Encode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

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 Core Ultra 7 165U supports a maximum of 96 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled.

Intel Atom Z2520 Characteristic Intel Core Ultra 7 165U
LPDDR2-1066 Memory LPDDR5X-7500, DDR5-5600
2 GB Max. Memory 96 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
8.5 GB/s Max. Bandwidth 120.0 GB/s
No ECC No
1.00 MB L2 Cache 12.00 MB
-- L3 Cache --
-- PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The Intel Atom Z2520 has a TDP of --. The TDP of the Intel Core Ultra 7 165U is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Atom Z2520 Characteristic Intel Core Ultra 7 165U
-- TDP (PL1 / PBP) 15 W
-- TDP (PL2) 57 W
-- TDP up 28 W
-- TDP down 12 W
90 °C Tjunction max. 110 °C

Technical details

The Intel Atom Z2520 has 1.00 MB cache and is manufactured in 32 nm. The cache of Intel Core Ultra 7 165U is at 12.00 MB. The processor is manufactured in 7 nm.

Intel Atom Z2520 Characteristic Intel Core Ultra 7 165U
32 nm Technology 7 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
MMX, SSE3, SSSE3 ISA extensions SSE4.1, SSE4.2, AVX2
BGA Socket BGA 2049
None Virtualization VT-x, VT-x EPT, VT-d
No AES-NI Yes
Operating systems Windows 11, Linux
Q2/2013 Release date Q4/2023
-- Release price --
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.
Intel Atom Z2520 Intel Atom Z2520
PowerVR SGX544 MP2 @ 0.30 GHz
0 (0%)
Intel Core Ultra 7 165U Intel Core Ultra 7 165U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 2.00 GHz
1985 (100%)

Devices using this processor

Intel Atom Z2520 Intel Core Ultra 7 165U
Unknown Unknown

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