Ryzen 7 7840S vs Ryzen 7 7745HX

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Aggregate performance score

Ryzen 7 7745HX
2023
8 cores / 16 threads, 55 Watt
21.38
+32.8%

Ryzen 7 7745HX outperforms Ryzen 7 7840S by a substantial 33% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 7745HX and Ryzen 7 7840S processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking263439
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
Seriesno dataPhoenix (Zen 4, Ryzen 7040)
Power efficiency35.4541.95
Architecture codenameDragon Range (Zen 4) (2023)Phoenix-HS (Zen 4) (2023)
Release date4 January 2023 (1 year ago)5 January 2023 (1 year ago)

Detailed specifications

Ryzen 7 7745HX and Ryzen 7 7840S 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)
Threads1616
Base clock speed3.6 GHz3.8 GHz
Boost clock speed5.1 GHz5.1 GHz
L1 cache64K (per core)512 KB
L2 cache1 MB (per core)8 MB
L3 cache32 MB (shared)16 MB
Chip lithographyCCD = 5 nm, I/O = 6 nm4 nm
Die size71 mm2178 mm2
Maximum core temperature100 °C100 °C
Number of transistors6,570 millionno data
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Ryzen 7 7745HX and Ryzen 7 7840S 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 configuration1no data
SocketFL1FP7/FP7r2/FP8
Power consumption (TDP)55 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 7745HX and Ryzen 7 7840S. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX, 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, 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, SME
AES-NI++
FMA++
AVX++
Precision Boost 2+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 7745HX and Ryzen 7 7840S are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7745HX and Ryzen 7 7840S. 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 610MAMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 7745HX and Ryzen 7 7840S.

PCIe version5.0no data
PCI Express lanes28no data

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 7745HX 21.38
+32.8%
Ryzen 7 7840S 16.10

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 7745HX 32724
+32.8%
Ryzen 7 7840S 24635

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 7745HX 8006
+5.6%
Ryzen 7 7840S 7579

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 7745HX 54762
+19.2%
Ryzen 7 7840S 45931

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 7745HX 16933
+16.4%
Ryzen 7 7840S 14547

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 7745HX 2.28
+347%
Ryzen 7 7840S 10.2

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 7745HX 35
+22.5%
Ryzen 7 7840S 29

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 7745HX 2986
+34.3%
Ryzen 7 7840S 2223

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 7745HX 295
+7.5%
Ryzen 7 7840S 274

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 7745HX 3.5
+5.1%
Ryzen 7 7840S 3.33

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 7745HX 16.4
+27.1%
Ryzen 7 7840S 12.9

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 7745HX 14476
Ryzen 7 7840S 20369
+40.7%

Geekbench 5.5 Multi-Core

Ryzen 7 7745HX 12920
+14.5%
Ryzen 7 7840S 11288

Blender(-)

Ryzen 7 7745HX 172
Ryzen 7 7840S 213
+24.2%

Geekbench 5.5 Single-Core

Ryzen 7 7745HX 2054
+5.9%
Ryzen 7 7840S 1939

7-Zip Single

Ryzen 7 7745HX 7260
+14.7%
Ryzen 7 7840S 6328

7-Zip

Ryzen 7 7745HX 79413
+22.7%
Ryzen 7 7840S 64696

WebXPRT 3

Ryzen 7 7745HX 347
+17.2%
Ryzen 7 7840S 296

Gaming performance

Pros & cons summary


Performance score 21.38 16.10
Integrated graphics card 2.85 18.28
Power consumption (TDP) 55 Watt 35 Watt

Ryzen 7 7745HX has a 32.8% higher aggregate performance score.

Ryzen 7 7840S, on the other hand, has 541.4% faster integrated GPU, and 57.1% lower power consumption.

The Ryzen 7 7745HX is our recommended choice as it beats the Ryzen 7 7840S in performance tests.


Should you still have questions on choice between Ryzen 7 7745HX and Ryzen 7 7840S, ask them in Comments section, and we shall answer.

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AMD Ryzen 7 7745HX
Ryzen 7 7745HX
AMD Ryzen 7 7840S
Ryzen 7 7840S

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