AMD Ryzen 5 PRO 5645 vs Intel Core Ultra 3 105UL

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CPU comparison with benchmarks


AMD Ryzen 5 PRO 5645 CPU1 vs CPU2 Intel Core Ultra 3 105UL
AMD Ryzen 5 PRO 5645 Intel Core Ultra 3 105UL

CPU comparison

In this CPU comparison, we compare the AMD Ryzen 5 PRO 5645 and the Intel Core Ultra 3 105UL and use benchmarks to check which processor is faster.

We compare the AMD Ryzen 5 PRO 5645 6 core processor released in Q3/2022 with the Intel Core Ultra 3 105UL which has 8 CPU cores and was introduced in Q2/2024.
AMD Ryzen 5 (85) Family Intel Core Ultra 3 (1)
AMD Ryzen 5000U (13) CPU group Intel Core Ultra 100UL (5)
4 Generation 1
Cezanne (Zen 3) Architecture Meteor Lake PS
Mobile Segment Desktop / Server
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 PRO 5645 is a 6 core processor with a clock frequency of 3.70 GHz (4.60 GHz). The processor can compute 12 threads at the same time. The Intel Core Ultra 3 105UL clocks with 1.50 GHz (4.20 GHz), has 8 CPU cores and can calculate 10 threads in parallel.

AMD Ryzen 5 PRO 5645 Characteristic Intel Core Ultra 3 105UL
6 Cores 8
12 Threads 10
normal Core architecture hybrid (big.LITTLE)
Yes Hyperthreading Yes
Yes Overclocking ? No
3.70 GHz (4.60 GHz) A-Core 1.50 GHz (4.20 GHz)
2x Redwood Cove
-- B-Core 1.00 GHz (3.50 GHz)
4x 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.

AMD Ryzen 5 PRO 5645 Characteristic Intel Core Ultra 3 105UL
-- 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.

no iGPU GPU Intel Iris Xe 3 Core Graphics 48 EUs (Meteor Lake)
GPU frequency 0.60 GHz
-- GPU (Turbo) 1.80 GHz
-- GPU Generation --
Technology 5 nm
Max. displays 4
-- Compute units 48
-- Shader 384
No Hardware Raytracing Yes
No Frame Generation No
-- Max. GPU Memory 32 GB
-- 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.

no iGPU GPU Intel Iris Xe 3 Core Graphics 48 EUs (Meteor Lake)
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
No Codec h264 Decode / Encode
No Codec VP9 Decode
No 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 64 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 PRO 5645, while the Intel Core Ultra 3 105UL supports a maximum of 96 GB of memory with a maximum memory bandwidth of 89.6 GB/s enabled.

AMD Ryzen 5 PRO 5645 Characteristic Intel Core Ultra 3 105UL
LPDDR4-4266, DDR4-3200 Memory DDR5-5600
64 GB Max. Memory 96 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
51.2 GB/s Max. Bandwidth 89.6 GB/s
No ECC No
3.00 MB L2 Cache 10.00 MB
32.00 MB L3 Cache --
4.0 PCIe version 4.0
-- PCIe lanes 20
-- PCIe Bandwidth 39.4 GB/s

Thermal Management

The AMD Ryzen 5 PRO 5645 has a TDP of 65 W. The TDP of the Intel Core Ultra 3 105UL is 15 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen 5 PRO 5645 Characteristic Intel Core Ultra 3 105UL
65 W TDP (PL1 / PBP) 15 W
-- TDP (PL2) 57 W
-- TDP up 28 W
-- TDP down 12 W
95 °C Tjunction max. 105 °C

Technical details

The AMD Ryzen 5 PRO 5645 has 35.00 MB cache and is manufactured in 7 nm. The cache of Intel Core Ultra 3 105UL is at 10.00 MB. The processor is manufactured in 7 nm.

AMD Ryzen 5 PRO 5645 Characteristic Intel Core Ultra 3 105UL
7 nm Technology 7 nm
Chiplet Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 ISA extensions SSE4.1, SSE4.2, AVX2
AM4 (PGA 1331) Socket LGA 1851
AMD-V, SVM Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 11, Linux
Q3/2022 Release date Q2/2024
-- Release price --
show more data show more data


Rate these processors

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Here you can rate the Intel Core Ultra 3 105UL to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


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.
AMD Ryzen 5 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 4.60 GHz
1570 (100%)
Intel Core Ultra 3 105UL Intel Core Ultra 3 105UL
8C 10T @ 4.20 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.
AMD Ryzen 5 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz
7089 (100%)
Intel Core Ultra 3 105UL Intel Core Ultra 3 105UL
8C 10T @ 1.50 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.
AMD Ryzen 5 PRO 5645 AMD Ryzen 5 PRO 5645
@ 0.00 GHz
0 (0%)
Intel Core Ultra 3 105UL Intel Core Ultra 3 105UL
Intel Iris Xe 3 Core Graphics 48 EUs (Meteor Lake) @ 1.80 GHz
1340 (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.
AMD Ryzen 5 PRO 5645 AMD Ryzen 5 PRO 5645
6C 12T @ 3.70 GHz
19544 (100%)
Intel Core Ultra 3 105UL Intel Core Ultra 3 105UL
8C 10T @ 1.50 GHz
0 (0%)

Devices using this processor

AMD Ryzen 5 PRO 5645 Intel Core Ultra 3 105UL
Unknown Unknown

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