AMD Ryzen 7 7840HS vs AMD Ryzen 5 7640U

Last updated:

CPU comparison with benchmarks


AMD Ryzen 7 7840HS CPU1 vs CPU2 AMD Ryzen 5 7640U
AMD Ryzen 7 7840HS AMD Ryzen 5 7640U

CPU comparison

AMD Ryzen 7 7840HS or AMD Ryzen 5 7640U - 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 7840HS has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 7840HS was released in Q1/2023.

The AMD Ryzen 5 7640U has 6 cores with 12 threads and clocks with a maximum frequency of 4.90 GHz. The CPU supports up to 256 GB of memory in 2 memory channels. The AMD Ryzen 5 7640U was released in Q3/2023.
AMD Ryzen 7 (63) Family AMD Ryzen 5 (78)
AMD Ryzen 7040 (19) CPU group AMD Ryzen 7040 (19)
6 Generation 6
Phoenix (Zen 4) Architecture Phoenix (Zen 4)
Mobile Segment Mobile
-- Predecessor --
AMD Ryzen 7 8840HS Successor AMD Ryzen 5 8640U

CPU Cores and Base Frequency

The AMD Ryzen 7 7840HS has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 7840HS is 3.80 GHz (5.10 GHz) while the AMD Ryzen 5 7640U has 6 CPU cores and 12 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 5 7640U is at 3.50 GHz (4.90 GHz).

AMD Ryzen 7 7840HS Characteristic AMD Ryzen 5 7640U
8 Cores 6
16 Threads 12
normal Core architecture normal
Yes Hyperthreading Yes
No Overclocking ? No
3.80 GHz Frequency 3.50 GHz
5.10 GHz Turbo Frequency (1 Core) 4.90 GHz
4.25 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 7 7840HS Characteristic AMD Ryzen 5 7640U
AMD Ryzen AI AI hardware --
AMD dedicated AI XDNA Technology AI specifications --

Internal Graphics

The AMD Ryzen 7 7840HS or AMD Ryzen 5 7640U has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.

AMD Radeon 780M GPU AMD Radeon 760M
0.80 GHz GPU frequency 0.80 GHz
2.70 GHz GPU (Turbo) 2.60 GHz
3 GPU Generation 10
4 nm Technology 4 nm
4 Max. displays 4
12 Compute units 8
768 Shader 512
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 780M 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 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

The AMD Ryzen 7 7840HS can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The AMD Ryzen 5 7640U supports up to 256 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 120.0 GB/s.

AMD Ryzen 7 7840HS Characteristic AMD Ryzen 5 7640U
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
8.00 MB L2 Cache 6.00 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 thermal design power (TDP for short) of the AMD Ryzen 7 7840HS is 54 W, while the AMD Ryzen 5 7640U has a TDP of 28 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

AMD Ryzen 7 7840HS Characteristic AMD Ryzen 5 7640U
54 W TDP (PL1 / PBP) 28 W
-- TDP (PL2) --
60 W TDP up 30 W
35 W TDP down 15 W
100 °C Tjunction max. 100 °C

Technical details

The AMD Ryzen 7 7840HS is manufactured in 4 nm and has 24.00 MB cache. The AMD Ryzen 5 7640U is manufactured in 4 nm and has a 22.00 MB cache.

AMD Ryzen 7 7840HS Characteristic AMD Ryzen 5 7640U
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
Q1/2023 Release date Q3/2023
-- Release price --
show more data show more data


Rate these processors

Here you can rate the AMD Ryzen 7 7840HS to help other visitors make their purchasing decisions. The average rating is 4.6 stars (26 ratings). Rate now:
Here you can rate the AMD Ryzen 5 7640U to help other visitors make their purchasing decisions. The average rating is 5.0 stars (1 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 3 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz
1757 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
1552 (88%)

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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz
15930 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
10675 (67%)

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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz
1857 (99%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
1869 (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 7 7840HS AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz
11334 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
8853 (78%)

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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz
2456 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
2340 (95%)

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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz
12135 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
9197 (76%)

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 7840HS AMD Ryzen 7 7840HS
AMD Radeon 780M @ 2.70 GHz
4201 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
AMD Radeon 760M @ 2.60 GHz
2663 (63%)

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 7 7840HS AMD Ryzen 7 7840HS
15,930 CB R23 MC @ 55 W
287 (65%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
10,675 CB R23 MC @ 24 W
445 (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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz
102 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 GHz
0 (0%)

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.
AMD Ryzen 7 7840HS AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz
866 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 4.90 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 7840HS AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz
28412 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Ryzen 7 7840HS AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz
624 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
AMD Ryzen 7 7840HS AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz
6744 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 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).
AMD Ryzen 7 7840HS AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz
10 (100%)
AMD Ryzen 5 7640U AMD Ryzen 5 7640U
6C 12T @ 3.50 GHz
0 (0%)

Devices using this processor

AMD Ryzen 7 7840HS AMD Ryzen 5 7640U
Lenovo IdeaPad Pro 5 14
Lenovo IdeaPad Pro 5 16
Unknown

Popular comparisons containing this CPUs

1. AMD Ryzen 7 7840HSIntel Core i7-13700H AMD Ryzen 7 7840HS vs Intel Core i7-13700H
2. AMD Ryzen 7 7840HSAMD Ryzen 9 7940HS AMD Ryzen 7 7840HS vs AMD Ryzen 9 7940HS
3. AMD Ryzen 7 7735HSAMD Ryzen 7 7840HS AMD Ryzen 7 7735HS vs AMD Ryzen 7 7840HS
4. AMD Ryzen 7 7840UAMD Ryzen 7 7840HS AMD Ryzen 7 7840U vs AMD Ryzen 7 7840HS
5. AMD Ryzen 5 7640UAMD Ryzen 7 7840U AMD Ryzen 5 7640U vs AMD Ryzen 7 7840U
6. AMD Ryzen 7 7840HSIntel Core i7-13620H AMD Ryzen 7 7840HS vs Intel Core i7-13620H
7. AMD Ryzen 7 7840HSIntel Core i7-12650H AMD Ryzen 7 7840HS vs Intel Core i7-12650H
8. AMD Ryzen 7 7840HSIntel Core i7-13700HX AMD Ryzen 7 7840HS vs Intel Core i7-13700HX
9. AMD Ryzen 7 7840HSIntel Core i5-13500H AMD Ryzen 7 7840HS vs Intel Core i5-13500H
10. AMD Ryzen 7 7840HSAMD Ryzen 5 7640HS AMD Ryzen 7 7840HS vs AMD Ryzen 5 7640HS


back to index