Ryzen 7 7840S vs Ryzen 9 6900HX

VS

Aggregate performance score

Ryzen 9 6900HX
2022
8 cores / 16 threads, 45 Watt
16.19
+0.6%

Ryzen 9 6900HX outperforms Ryzen 7 7840S by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 9 6900HX and Ryzen 7 7840S processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking433438
Place by popularitynot in top-100not in top-100
Market segmentLaptopLaptop
SeriesAMD Rembrandt (Zen 3+)Phoenix (Zen 4, Ryzen 7040)
Power efficiency32.8141.95
Architecture codenameRembrandt-H (Zen 3+) (2022)Phoenix-HS (Zen 4) (2023)
Release dateJanuary 2022 (2 years ago)5 January 2023 (1 year ago)

Detailed specifications

Ryzen 9 6900HX 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 speed3.3 GHz3.8 GHz
Boost clock speed4.9 GHz5.1 GHz
L1 cache64K (per core)512 KB
L2 cache512K (per core)8 MB
L3 cache16 MB (shared)16 MB
Chip lithography6 nm4 nm
Die size208 mm2178 mm2
Maximum core temperature95 °C100 °C
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Ryzen 9 6900HX 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
SocketFP7FP7/FP7r2/FP8
Power consumption (TDP)45 Watt35 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 9 6900HX and Ryzen 7 7840S. You'll probably need this information if you require some particular technology.

Instruction set extensionsMMX (+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A, AES, AVX, AVX2, FMA3, SHARyzen 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 9 6900HX and Ryzen 7 7840S are enumerated here.

AMD-V+-

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 9 6900HX 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 680MAMD Radeon 780M

Peripherals

Specifications and connection of peripherals supported by Ryzen 9 6900HX and Ryzen 7 7840S.

PCIe version4.0no data
PCI Express lanes20no 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 9 6900HX 16.19
+0.6%
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 9 6900HX 24781
+0.6%
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 9 6900HX 6546
Ryzen 7 7840S 7579
+15.8%

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 9 6900HX 39524
Ryzen 7 7840S 45931
+16.2%

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 9 6900HX 13274
Ryzen 7 7840S 14547
+9.6%

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 9 6900HX 3.77
+171%
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 9 6900HX 24
Ryzen 7 7840S 29
+19.8%

Cinebench 15 64-bit multi-core

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

Ryzen 9 6900HX 2231
+0.4%
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 9 6900HX 249
Ryzen 7 7840S 274
+10%

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 9 6900HX 2.92
Ryzen 7 7840S 3.33
+14%

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 9 6900HX 11.9
Ryzen 7 7840S 12.9
+8.4%

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 9 6900HX 6875
Ryzen 7 7840S 20369
+196%

Geekbench 5.5 Multi-Core

Ryzen 9 6900HX 9647
Ryzen 7 7840S 11288
+17%

Blender(-)

Ryzen 9 6900HX 231
+8.5%
Ryzen 7 7840S 213

Geekbench 5.5 Single-Core

Ryzen 9 6900HX 1589
Ryzen 7 7840S 1939
+22%

7-Zip Single

Ryzen 9 6900HX 5817
Ryzen 7 7840S 6328
+8.8%

7-Zip

Ryzen 9 6900HX 61333
Ryzen 7 7840S 64696
+5.5%

WebXPRT 3

Ryzen 9 6900HX 286
Ryzen 7 7840S 296
+3.5%

Gaming performance

Pros & cons summary


Performance score 16.19 16.10
Integrated graphics card 15.98 18.28
Chip lithography 6 nm 4 nm
Power consumption (TDP) 45 Watt 35 Watt

Ryzen 9 6900HX has a 0.6% higher aggregate performance score.

Ryzen 7 7840S, on the other hand, has 14.4% faster integrated GPU, a 50% more advanced lithography process, and 28.6% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Ryzen 9 6900HX and Ryzen 7 7840S.


Should you still have questions on choice between Ryzen 9 6900HX and Ryzen 7 7840S, ask them in Comments section, and we shall answer.

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AMD Ryzen 9 6900HX
Ryzen 9 6900HX
AMD Ryzen 7 7840S
Ryzen 7 7840S

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