AMD Ryzen 5 7640U vs AMD Ryzen 7 PRO 8840U

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CPU comparison with benchmarks


AMD Ryzen 5 7640U CPU1 vs CPU2 AMD Ryzen 7 PRO 8840U
AMD Ryzen 5 7640U AMD Ryzen 7 PRO 8840U

CPU comparison

In this CPU comparison, we compare the AMD Ryzen 5 7640U and the AMD Ryzen 7 PRO 8840U and use benchmarks to check which processor is faster.

We compare the AMD Ryzen 5 7640U 6 core processor released in Q3/2023 with the AMD Ryzen 7 PRO 8840U which has 8 CPU cores and was introduced in Q2/2024.
AMD Ryzen 5 (85) Family AMD Ryzen 7 PRO (21)
AMD Ryzen 7040 (21) CPU group AMD Ryzen 8040 (20)
6 Generation 7
Phoenix (Zen 4) Architecture Hawk Point (Zen 4)
Mobile Segment Mobile
-- Predecessor AMD Ryzen 7 PRO 7840U
AMD Ryzen 5 8640U Successor --

CPU Cores and Base Frequency

The AMD Ryzen 5 7640U is a 6 core processor with a clock frequency of 3.50 GHz (4.90 GHz). The processor can compute 12 threads at the same time. The AMD Ryzen 7 PRO 8840U clocks with 3.30 GHz (5.10 GHz), has 8 CPU cores and can calculate 16 threads in parallel.

AMD Ryzen 5 7640U Characteristic AMD Ryzen 7 PRO 8840U
6 Cores 8
12 Threads 16
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
3.50 GHz Frequency 3.30 GHz
4.90 GHz Turbo Frequency (1 Core) 5.10 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.

AMD Ryzen 5 7640U Characteristic AMD Ryzen 7 PRO 8840U
-- 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.

AMD Radeon 760M GPU AMD Radeon 780M
0.80 GHz GPU frequency 0.80 GHz
2.60 GHz GPU (Turbo) 2.70 GHz
10 GPU Generation 3
4 nm Technology 4 nm
4 Max. displays 4
8 Compute units 12
512 Shader 768
Yes Hardware Raytracing Yes
AMD FSR Frame Generation AMD FSR
32 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 760M GPU AMD Radeon 780M
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 Codec VP9 Decode
Decode Codec VP8 Decode
Decode / Encode Codec AV1 Decode / Encode
Decode Codec AVC Decode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

Up to 256 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 5 7640U, while the AMD Ryzen 7 PRO 8840U supports a maximum of 256 GB of memory with a maximum memory bandwidth of 120.0 GB/s enabled.

AMD Ryzen 5 7640U Characteristic AMD Ryzen 7 PRO 8840U
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 Memory DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500
256 GB Max. Memory 256 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
120.0 GB/s Max. Bandwidth 120.0 GB/s
Yes ECC Yes
6.00 MB L2 Cache 8.00 MB
16.00 MB L3 Cache 16.00 MB
4.0 PCIe version 4.0
20 PCIe lanes 20
39.4 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The AMD Ryzen 5 7640U has a TDP of 28 W. The TDP of the AMD Ryzen 7 PRO 8840U is 28 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

AMD Ryzen 5 7640U Characteristic AMD Ryzen 7 PRO 8840U
28 W TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
30 W TDP up --
15 W TDP down 15 W
100 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 5 7640U has 22.00 MB cache and is manufactured in 4 nm. The cache of AMD Ryzen 7 PRO 8840U is at 24.00 MB. The processor is manufactured in 4 nm.

AMD Ryzen 5 7640U Characteristic AMD Ryzen 7 PRO 8840U
4 nm Technology 4 nm
Monolithic 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
FP8 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
Q3/2023 Release date Q2/2024
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 5 7640U to help other visitors make their purchasing decisions. The average rating is 5.0 stars (5 ratings). Rate now:
Here you can rate the AMD Ryzen 7 PRO 8840U to help other visitors make their purchasing decisions. The average rating is 3.0 stars (2 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
AMD Ryzen 5 7640U (93%)
AMD Ryzen 7 PRO 8840U (100%)
⌀ Multi core performance in 3 CPU benchmarks
AMD Ryzen 5 7640U (86%)
AMD Ryzen 7 PRO 8840U (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 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
1552 (86%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 5.10 GHz
1807 (100%)

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 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
10675 (79%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 3.30 GHz
13450 (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.
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
1869 (97%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 5.10 GHz
1917 (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.
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
8853 (92%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 3.30 GHz
9612 (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.
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
2340 (96%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 5.10 GHz
2446 (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.
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
9197 (86%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 3.30 GHz
10726 (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.
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
AMD Radeon 760M @ 2.60 GHz
2663 (63%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
AMD Radeon 780M @ 2.70 GHz
4201 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
10,675 CB R23 MC @ 24 W
445 (99%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
13,450 CB R23 MC @ 30 W
448 (100%)

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).
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
0 (0%)
AMD Ryzen 7 PRO 8840U AMD Ryzen 7 PRO 8840U
8C 16T @ 3.30 GHz
16 (100%)

Devices using this processor

AMD Ryzen 5 7640U AMD Ryzen 7 PRO 8840U
Unknown Unknown

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