Ryzen 7 4700U vs Ryzen 7 7840S

Aggregate performance score

Ryzen 7 7840S
2023
8 cores / 16 threads, 35 Watt
15.30
+81.9%
Ryzen 7 4700U
2020
8 cores / 8 threads, 25 Watt
8.41

Ryzen 7 7840S outperforms Ryzen 7 4700U by an impressive 82% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 7840S and Ryzen 7 4700U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking452898
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesPhoenix (Zen 4, Ryzen 7040)AMD Renoir (Ryzen 4000 APU)
Power efficiency41.3731.84
Architecture codenamePhoenix-HS (Zen 4) (2023)Renoir-U (Zen 2) (2020−2021)
Release date5 January 2023 (1 year ago)6 January 2020 (4 years ago)

Detailed specifications

Ryzen 7 7840S and Ryzen 7 4700U 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)8 (Octa-Core)
Threads168
Base clock speed3.8 GHz1.8 GHz
Boost clock speed5.1 GHz4.2 GHz
Multiplierno data20
L1 cache512 KB128K (per core)
L2 cache8 MB512K (per core)
L3 cache16 MB12 MB (shared)
Chip lithography4 nm7 nm
Die size178 mm2156 mm2
Maximum core temperature100 °C105 °C
Number of transistorsno data9800 Million
64 bit support++
Windows 11 compatibility++

Compatibility

Information on Ryzen 7 7840S and Ryzen 7 4700U 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/FP8FP6
Power consumption (TDP)35 Watt25 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 7840S and Ryzen 7 4700U. 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, SMEMMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, BMI2, ABM, FMA, ADX, SMEP, SMAP, CPB, AES-NI, RDRAND, RDSEED, SHA, SME
AES-NI++
FMA++
AVX++

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 7840S and Ryzen 7 4700U are enumerated here.

AMD-V-+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840S and Ryzen 7 4700U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5DDR4
Maximum memory sizeno data64 GB
Maximum memory bandwidthno data68.27 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon 780M ( - 2700 MHz)AMD Radeon RX Vega 7 ( - 1600 MHz)

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 7840S and Ryzen 7 4700U.

PCIe versionno data3.0

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 15.30
+81.9%
Ryzen 7 4700U 8.41

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 24309
+81.9%
Ryzen 7 4700U 13363

Cinebench 10 32-bit single-core

Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.

Ryzen 7 7840S 7579
+37.2%
Ryzen 7 4700U 5524

Cinebench 10 32-bit multi-core

Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.

Ryzen 7 7840S 45931
+85.4%
Ryzen 7 4700U 24771

3DMark06 CPU

3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.

Ryzen 7 7840S 14547
+68.6%
Ryzen 7 4700U 8629

wPrime 32

wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.

Ryzen 7 7840S 10.2
Ryzen 7 4700U 7.89
+29.3%

Cinebench 11.5 64-bit multi-core

Cinebench Release 11.5 Multi Core is a variant of Cinebench R11.5 which uses all the processor threads. A maximum of 64 threads is supported in this version.

Ryzen 7 7840S 29
+128%
Ryzen 7 4700U 13

Cinebench 15 64-bit multi-core

Cinebench Release 15 Multi Core is a variant of Cinebench R15 which uses all the processor threads.

Ryzen 7 7840S 2223
+103%
Ryzen 7 4700U 1095

Cinebench 15 64-bit single-core

Cinebench R15 (standing for Release 15) is a benchmark made by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version (sometimes called Single-Thread) only uses a single processor thread to render a room full of reflective spheres and light sources.

Ryzen 7 7840S 274
+52.2%
Ryzen 7 4700U 180

Cinebench 11.5 64-bit single-core

Cinebench R11.5 is an old benchmark by Maxon, authors of Cinema 4D. It was superseded by later versions of Cinebench, which use more modern variants of Cinema 4D engine. The Single Core version loads a single thread with ray tracing to render a glossy room full of crystal spheres and light sources.

Ryzen 7 7840S 3.33
+58.6%
Ryzen 7 4700U 2.1

TrueCrypt AES

TrueCrypt is a discontinued piece of software that was widely used for on-the-fly-encryption of disk partitions, now superseded by VeraCrypt. It contains several embedded performance tests, one of them being TrueCrypt AES, which measures data encryption speed using AES algorithm. Result is encryption speed in gigabytes per second.

Ryzen 7 7840S 12.9
+146%
Ryzen 7 4700U 5.3

WinRAR 4.0

WinRAR 4.0 is an outdated version of a popular file archiver. It contains an internal speed test, using 'Best' setting of RAR compression on large chunks of randomly generated data. Its results are measured in kilobytes per second.

Ryzen 7 7840S 20369
+414%
Ryzen 7 4700U 3963

Geekbench 5.5 Multi-Core

Ryzen 7 7840S 11288
+99.6%
Ryzen 7 4700U 5656

Blender(-)

Ryzen 7 7840S 213
Ryzen 7 4700U 478
+124%

Geekbench 5.5 Single-Core

Ryzen 7 7840S 1939
+71.4%
Ryzen 7 4700U 1131

7-Zip Single

Ryzen 7 7840S 6328
+45.1%
Ryzen 7 4700U 4362

7-Zip

Ryzen 7 7840S 64696
+109%
Ryzen 7 4700U 30954

WebXPRT 3

Ryzen 7 7840S 296
+45.8%
Ryzen 7 4700U 203

Gaming performance

Pros & cons summary


Performance score 15.30 8.41
Integrated graphics card 18.33 7.46
Recency 5 January 2023 6 January 2020
Threads 16 8
Chip lithography 4 nm 7 nm
Power consumption (TDP) 35 Watt 25 Watt

Ryzen 7 7840S has a 81.9% higher aggregate performance score, 145.7% faster integrated GPU, an age advantage of 2 years, 100% more threads, and a 75% more advanced lithography process.

Ryzen 7 4700U, on the other hand, has 40% lower power consumption.

The Ryzen 7 7840S is our recommended choice as it beats the Ryzen 7 4700U in performance tests.


Should you still have questions on choice between Ryzen 7 7840S and Ryzen 7 4700U, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 7840S
Ryzen 7 7840S
AMD Ryzen 7 4700U
Ryzen 7 4700U

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