Intel Core i5-655K vs AMD Ryzen 5 PRO 8645HS

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CPU comparison with benchmarks


Intel Core i5-655K CPU1 vs CPU2 AMD Ryzen 5 PRO 8645HS
Intel Core i5-655K AMD Ryzen 5 PRO 8645HS

CPU comparison

In this CPU comparison, we compare the Intel Core i5-655K and the AMD Ryzen 5 PRO 8645HS and use benchmarks to check which processor is faster.

We compare the Intel Core i5-655K 2 core processor released in Q1/2010 with the AMD Ryzen 5 PRO 8645HS which has 6 CPU cores and was introduced in Q2/2024.
Intel Core i5 (331) Family AMD Ryzen 5 PRO (28)
Intel Core i5 600 (6) CPU group AMD Ryzen 8040 (20)
1 Generation 7
Clarkdale Architecture Hawk Point (Zen 4)
Desktop / Server Segment Mobile
-- Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core i5-655K is a 2 core processor with a clock frequency of 3.20 GHz (3.46 GHz). The processor can compute 4 threads at the same time. The AMD Ryzen 5 PRO 8645HS clocks with 4.30 GHz (5.00 GHz), has 6 CPU cores and can calculate 12 threads in parallel.

Intel Core i5-655K Characteristic AMD Ryzen 5 PRO 8645HS
2 Cores 6
4 Threads 12
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? No
3.20 GHz Frequency 4.30 GHz
3.46 GHz Turbo Frequency (1 Core) 5.00 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 Core i5-655K Characteristic AMD Ryzen 5 PRO 8645HS
-- AI hardware AMD Ryzen AI
-- AI specifications AMD Ryzen™ AI

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.

Intel HD Graphics (Westmere) GPU AMD Radeon 760M
0.50 GHz GPU frequency 0.80 GHz
0.73 GHz GPU (Turbo) 2.60 GHz
5 GPU Generation 10
32 nm Technology 4 nm
2 Max. displays 4
12 Compute units 8
24 Shader 512
No Hardware Raytracing Yes
No Frame Generation AMD FSR
2 GB Max. GPU Memory 32 GB
10.1 DirectX Version 12

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.

Intel HD Graphics (Westmere) GPU AMD Radeon 760M
No Codec h265 / HEVC (8 bit) Decode / Encode
No Codec h265 / HEVC (10 bit) Decode / Encode
Decode Codec h264 Decode / Encode
No Codec VP9 Decode
No Codec VP8 Decode
No Codec AV1 Decode / Encode
Decode Codec AVC Decode
No Codec VC-1 Decode
No Codec JPEG Decode / Encode

Memory & PCIe

Up to 16 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i5-655K, while the AMD Ryzen 5 PRO 8645HS supports a maximum of 256 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled.

Intel Core i5-655K Characteristic AMD Ryzen 5 PRO 8645HS
DDR3-1066, DDR3-1333 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
16 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
21.3 GB/s Max. Bandwidth 120.0 GB/s
No ECC Yes
0.50 MB L2 Cache 6.00 MB
4.00 MB L3 Cache 16.00 MB
2.0 PCIe version 4.0
16 PCIe lanes 20
8.0 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The Intel Core i5-655K has a TDP of 73 W. The TDP of the AMD Ryzen 5 PRO 8645HS is 45 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i5-655K Characteristic AMD Ryzen 5 PRO 8645HS
73 W TDP (PL1 / PBP) 45 W
-- TDP (PL2) --
-- TDP up 54 W
-- TDP down 35 W
-- Tjunction max. 100 °C

Technical details

The Intel Core i5-655K has 4.50 MB cache and is manufactured in 32 nm. The cache of AMD Ryzen 5 PRO 8645HS is at 22.00 MB. The processor is manufactured in 4 nm.

Intel Core i5-655K Characteristic AMD Ryzen 5 PRO 8645HS
32 nm Technology 4 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
LGA 1156 Socket FP8
VT-x, VT-x EPT, VT-d Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2010 Release date Q2/2024
177 $ Release price --
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Average performance in benchmarks

⌀ Single core performance in 1 CPU benchmarks
Intel Core i5-655K (31%)
AMD Ryzen 5 PRO 8645HS (100%)
⌀ Multi core performance in 1 CPU benchmarks
Intel Core i5-655K (16%)
AMD Ryzen 5 PRO 8645HS (100%)

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.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.46 GHz
564 (31%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 5.00 GHz
1802 (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.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.20 GHz
1252 (16%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 4.30 GHz
7768 (100%)

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 Core i5-655K Intel Core i5-655K
Intel HD Graphics (Westmere) @ 0.73 GHz
35 (1%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
AMD Radeon 760M @ 2.60 GHz
2663 (100%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.46 GHz
0 (0%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 5.00 GHz
99 (100%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.46 GHz
0 (0%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 5.00 GHz
702 (100%)

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.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.46 GHz
0 (0%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 5.00 GHz
2478 (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.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 4.30 GHz
10357 (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.
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.20 GHz
2221 (100%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 4.30 GHz
0 (0%)

Performance for Artificial Intelligence (AI) and Machine Learning (ML)

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. The performance is given in the number (trillions) of arithmetic operations per second (TOPS).
Intel Core i5-655K Intel Core i5-655K
2C 4T @ 3.20 GHz
0 (0%)
AMD Ryzen 5 PRO 8645HS AMD Ryzen 5 PRO 8645HS
6C 12T @ 4.30 GHz
16 (100%)

Devices using this processor

Intel Core i5-655K AMD Ryzen 5 PRO 8645HS
Unknown Unknown

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