AMD Ryzen 7 PRO 7745 vs AMD Ryzen 5 8640HS

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CPU comparison with benchmarks


AMD Ryzen 7 PRO 7745 CPU1 vs CPU2 AMD Ryzen 5 8640HS
AMD Ryzen 7 PRO 7745 AMD Ryzen 5 8640HS

CPU comparison

AMD Ryzen 7 PRO 7745 or AMD Ryzen 5 8640HS - 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 AMD Ryzen 7 PRO 7745 has 8 cores with 16 threads and clocks with a maximum frequency of 5.30 GHz. Up to 128 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 PRO 7745 was released in Q2/2023.

The AMD Ryzen 5 8640HS has 6 cores with 12 threads and clocks with a maximum frequency of 5.00 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 5 8640HS was released in Q1/2024.
AMD Ryzen 7 PRO (21) Family AMD Ryzen 5 (86)
AMD Ryzen 7000 (14) CPU group AMD Ryzen 8040 (20)
6 Generation 7
Raphael (Zen 4) Architecture Hawk Point (Zen 4)
Desktop / Server Segment Mobile
-- Predecessor AMD Ryzen 5 7640HS
-- Successor --

CPU Cores and Base Frequency

The AMD Ryzen 7 PRO 7745 is a 8 core processor with a clock frequency of 3.80 GHz (5.30 GHz). The AMD Ryzen 5 8640HS has 6 CPU cores with a clock frequency of 3.80 GHz (5.00 GHz).
AMD Ryzen 7 PRO 7745 Characteristic AMD Ryzen 5 8640HS
8 Cores 6
16 Threads 12
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking ? No
3.80 GHz Frequency 3.80 GHz
5.30 GHz Turbo Frequency (1 Core) 5.00 GHz
4.60 GHz Turbo Frequency (All Cores) --

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.
AMD Ryzen 7 PRO 7745 Characteristic AMD Ryzen 5 8640HS
-- AI hardware AMD Ryzen™ AI
-- AI specifications AMD Ryzen™ AI (XDNA) @ 16 TOPS
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.
AMD Radeon Graphics (Raphael) GPU AMD Radeon 760M
0.40 GHz GPU frequency 0.80 GHz
2.20 GHz GPU (Turbo) 2.60 GHz
9 GPU Generation 10
5 nm Technology 4 nm
3 Max. displays 4
2 Compute units 8
128 Shader 512
No Hardware Raytracing Yes
No Frame Generation AMD FSR
8 GB Max. GPU Memory 32 GB
12 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.
AMD Radeon Graphics (Raphael) GPU AMD Radeon 760M
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode
Decode / Encode Codec VP8 Decode
Decode Codec AV1 Decode / Encode
Decode / Encode Codec AVC Decode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The AMD Ryzen 7 PRO 7745 supports a maximum of 128 GB of memory in 2 memory channels. The AMD Ryzen 5 8640HS can connect up to 256 GB of memory in 2 memory channels.
AMD Ryzen 7 PRO 7745 Characteristic AMD Ryzen 5 8640HS
DDR5-5200 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
128 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
83.2 GB/s Max. Bandwidth 120.0 GB/s
Yes ECC Yes
8.00 MB L2 Cache 6.00 MB
32.00 MB L3 Cache 16.00 MB
5.0 PCIe version 4.0
24 PCIe lanes 20
94.5 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 7 PRO 7745 has a TDP of 65 W, that of the AMD Ryzen 5 8640HS is 28 W.
AMD Ryzen 7 PRO 7745 Characteristic AMD Ryzen 5 8640HS
65 W TDP (PL1 / PBP) 28 W
88 W TDP (PL2) --
170 W TDP up 54 W
-- TDP down 35 W
95 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 7 PRO 7745 has a 40.00 MB cache, while the AMD Ryzen 5 8640HS cache has a total of 22.00 MB.
AMD Ryzen 7 PRO 7745 Characteristic AMD Ryzen 5 8640HS
5 nm Technology 4 nm
Chiplet Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 ISA extensions SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
AM5 (LGA 1718) Socket FP8
AMD-V, SVM Virtualization AMD-V, SVM
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q2/2023 Release date Q1/2024
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 7 PRO 7745 to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:
Here you can rate the AMD Ryzen 5 8640HS to help other visitors make their purchasing decisions. The average rating is 4.0 stars (8 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
AMD Ryzen 7 PRO 7745 (100%)
AMD Ryzen 5 8640HS (86%)
⌀ Multi core performance in 0 CPU benchmarks
AMD Ryzen 7 PRO 7745 (0%)
AMD Ryzen 5 8640HS (0%)

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 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz
2177 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
1802 (83%)

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.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz
2769 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
2478 (89%)

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 7 PRO 7745 AMD Ryzen 7 PRO 7745
AMD Radeon Graphics (Raphael) @ 2.20 GHz
563 (21%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
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.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz
0 (0%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
99 (100%)

Cinebench R23 (Single-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz
1932 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
0 (0%)

Cinebench R23 (Multi-Core)

Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz
19540 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 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 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz
14026 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)

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.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz
14689 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 5.30 GHz
744 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 5.00 GHz
0 (0%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz
7845 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 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.
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 4.60 GHz
35640 (100%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
0 (0%)

AI performance (NPU)

The performance values of the processor's AI unit. The isolated NPU performance is given here, the total AI performance (NPU+CPU+iGPU) can be higher.

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).
AMD Ryzen 7 PRO 7745 AMD Ryzen 7 PRO 7745
8C 16T @ 3.80 GHz
0 (0%)
AMD Ryzen 5 8640HS AMD Ryzen 5 8640HS
6C 12T @ 3.80 GHz
16 (100%)

Devices using this processor
AMD Ryzen 7 PRO 7745 AMD Ryzen 5 8640HS
Unknown Unknown

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