Ryzen 5 7640U vs Ryzen 7 7840S

VS

Aggregate performance score

Ryzen 7 7840S
2023
8 cores / 16 threads, 35 Watt
15.09
+13%
Ryzen 5 7640U
2023
6 cores / 12 threads, 15 Watt
13.35

Ryzen 7 7840S outperforms Ryzen 5 7640U by a moderate 13% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 7840S and Ryzen 5 7640U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking467563
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesPhoenix (Zen 4, Ryzen 7040)no data
Power efficiency40.7884.17
Architecture codenamePhoenix-HS (Zen 4) (2023)Phoenix-U (Zen 4) (2023)
Release date5 January 2023 (1 year ago)3 May 2023 (1 year ago)

Detailed specifications

Ryzen 7 7840S and Ryzen 5 7640U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical cores8 (Octa-Core)6 (Hexa-Core)
Threads1612
Base clock speed3.8 GHz3.5 GHz
Boost clock speed5.1 GHz4.9 GHz
L1 cache512 KB64 KB (per core)
L2 cache8 MB1 MB (per core)
L3 cache16 MB16 MB (shared)
Chip lithography4 nm4 nm
Die size178 mm2178 mm2
Maximum core temperature100 °C100 °C
Number of transistorsno data25,000 million
64 bit support++
Windows 11 compatibility++

Compatibility

Information on Ryzen 7 7840S and Ryzen 5 7640U compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configurationno data1
SocketFP7/FP7r2/FP8FP8
Power consumption (TDP)35 Watt15 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 7840S and Ryzen 5 7640U. You'll probably need this information if you require some particular technology.

Instruction set extensionsRyzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SMERyzen AI, AES, AVX, AVX2, AVX512, FMA3, MMX (+), SHA, SSE, SSE2, SSE3, SSE4.1, SSE4.2, SSE4A, SSSE3
AES-NI++
FMA+-
AVX++
Precision Boost 2no data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 7840S and Ryzen 5 7640U are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840S and Ryzen 5 7640U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR5

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon 780M ( - 2700 MHz)AMD Radeon 760M ( - 2600 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 7840S and Ryzen 5 7640U.

PCIe versionno data4.0
PCI Express lanesno data20

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

Ryzen 7 7840S 15.09
+13%
Ryzen 5 7640U 13.35

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Ryzen 7 7840S 23966
+13%
Ryzen 5 7640U 21210

Gaming performance

Pros & cons summary


Performance score 15.09 13.35
Integrated graphics card 18.32 14.91
Recency 5 January 2023 3 May 2023
Physical cores 8 6
Threads 16 12
Power consumption (TDP) 35 Watt 15 Watt

Ryzen 7 7840S has a 13% higher aggregate performance score, 22.9% faster integrated GPU, and 33.3% more physical cores and 33.3% more threads.

Ryzen 5 7640U, on the other hand, has an age advantage of 3 months, and 133.3% lower power consumption.

The Ryzen 7 7840S is our recommended choice as it beats the Ryzen 5 7640U in performance tests.


Should you still have questions on choice between Ryzen 7 7840S and Ryzen 5 7640U, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 7840S
Ryzen 7 7840S
AMD Ryzen 5 7640U
Ryzen 5 7640U

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.8 25 votes

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4.6 39 votes

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Questions & comments

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