Ryzen 7 7840U vs i9-11900K

VS

Aggregate performance score

Core i9-11900K
2021
8 cores / 16 threads, 125 Watt
15.86
+1%
Ryzen 7 7840U
2023
8 cores / 16 threads, 28 Watt
15.71

Core i9-11900K outperforms Ryzen 7 7840U by a minimal 1% based on our aggregate benchmark results.

Primary details

Comparing Core i9-11900K and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking428435
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation18.93no data
Market segmentDesktop processorLaptop
Seriesno dataAMD Phoenix (Zen 4, Ryzen 7040)
Power efficiency12.0153.10
Architecture codenameRocket Lake (2021)Phoenix-U (Zen 4) (2023)
Release date16 March 2021 (3 years ago)May 2023 (1 year ago)
Launch price (MSRP)$539no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-11900K and Ryzen 7 7840U 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 speed3.5 GHz3.3 GHz
Boost clock speed5.2 GHz5.1 GHz
Bus rate8 GT/sno data
L1 cache80 KB (per core)64K (per core)
L2 cache512 KB (per core)1 MB (per core)
L3 cache16 MB (shared)16 MB (shared)
Chip lithography14 nm4 nm
Die size276 mm2178 mm2
Maximum core temperature100 °C100 °C
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data25,000 million
64 bit support++
Windows 11 compatibility++
Unlocked multiplier+-

Compatibility

Information on Core i9-11900K and Ryzen 7 7840U 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 configuration11
SocketFCLGA1200FP8
Power consumption (TDP)125 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-11900K and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512no data
AES-NI++
AVX++
vPro+no data
Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX+-
Idle States+no data
Thermal Monitoring+-
SIPP+-
Turbo Boost Max 3.0+no data
Precision Boost 2no data+
Deep Learning Boost+-

Security technologies

Core i9-11900K and Ryzen 7 7840U technologies aimed at improving security, for example, by protecting against hacks.

TXT+no data
EDB+no data
Secure Key+no data
Identity Protection+-
SGX-no data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-11900K and Ryzen 7 7840U are enumerated here.

AMD-V-+
VT-d+no data
VT-x+no data
EPT+no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-11900K and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5-5600
Maximum memory size128 GBno data
Max memory channels2no data
Maximum memory bandwidth50 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
Intel UHD Graphics 750AMD Radeon 780M ( - 2700 MHz)
Max video memory64 GBno data
Quick Sync Video+-
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.3 GHzno data
Execution Units32no data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i9-11900K and Ryzen 7 7840U integrated GPUs.

Number of displays supported3no data

Graphics image quality

Maximum display resolutions supported by Core i9-11900K and Ryzen 7 7840U integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2160@60Hzno data
Max resolution over eDP5120 x 3200 @60Hzno data
Max resolution over DisplayPort5120 x 3200 @60Hzno data

Graphics API support

APIs supported by Core i9-11900K and Ryzen 7 7840U integrated GPUs, sometimes API versions are included.

DirectX12.1no data
OpenGL4.5no data

Peripherals

Specifications and connection of peripherals supported by Core i9-11900K and Ryzen 7 7840U.

PCIe version4.04.0
PCI Express lanes2020

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.

i9-11900K 15.86
+1%
Ryzen 7 7840U 15.71

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.

i9-11900K 25196
+1%
Ryzen 7 7840U 24956

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

i9-11900K 2392
+14.9%
Ryzen 7 7840U 2081

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

i9-11900K 10982
+25.6%
Ryzen 7 7840U 8742

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.

i9-11900K 10545
+58.1%
Ryzen 7 7840U 6669

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.

i9-11900K 62024
+61.1%
Ryzen 7 7840U 38490

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.

i9-11900K 3.98
Ryzen 7 7840U 3.51
+13.4%

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.

i9-11900K 27
+18.3%
Ryzen 7 7840U 23

Cinebench 15 64-bit multi-core

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

i9-11900K 2379
+19.5%
Ryzen 7 7840U 1990

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.

i9-11900K 255
Ryzen 7 7840U 264
+3.5%

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.

i9-11900K 3.1
+11.1%
Ryzen 7 7840U 2.79

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.

i9-11900K 13
+53.8%
Ryzen 7 7840U 8.5

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.

i9-11900K 9030
+57.8%
Ryzen 7 7840U 5723

x264 encoding pass 2

x264 Pass 2 is a slower variant of x264 video compression that produces a variable bit rate output file, which results in better quality since the higher bit rate is used when it is needed more. Benchmark result is still measured in frames per second.  

i9-11900K 137
+25.9%
Ryzen 7 7840U 109

x264 encoding pass 1

x264 version 4.0 is a video encoding benchmark uses MPEG 4 x264 compression method to compress a sample HD (720p) video. Pass 1 is a faster variant that produces a constant bit rate output file. Its result is measured in frames per second, which means how many frames of the source video file were encoded per second.  

i9-11900K 310
+30.4%
Ryzen 7 7840U 237

Geekbench 5.5 Multi-Core

i9-11900K 10483
+11.7%
Ryzen 7 7840U 9382

Blender(-)

i9-11900K 212
Ryzen 7 7840U 260
+22.5%

Geekbench 5.5 Single-Core

i9-11900K 1788
+2.8%
Ryzen 7 7840U 1738

7-Zip Single

i9-11900K 6347
+6.6%
Ryzen 7 7840U 5952

7-Zip

i9-11900K 59659
+8.2%
Ryzen 7 7840U 55145

WebXPRT 3

i9-11900K 284
+8.2%
Ryzen 7 7840U 262

WebXPRT 4 Overall

i9-11900K 247
+18.8%
Ryzen 7 7840U 208

Blender v3.3 Classroom CPU(-)

i9-11900K 428
+1.7%
Ryzen 7 7840U 421

Gaming performance

Pros & cons summary


Performance score 15.86 15.71
Integrated graphics card 4.50 18.32
Chip lithography 14 nm 4 nm
Power consumption (TDP) 125 Watt 28 Watt

i9-11900K has a 1% higher aggregate performance score.

Ryzen 7 7840U, on the other hand, has 307.1% faster integrated GPU, a 250% more advanced lithography process, and 346.4% lower power consumption.

Given the minimal performance differences, no clear winner can be declared between Core i9-11900K and Ryzen 7 7840U.

Note that Core i9-11900K is a desktop processor while Ryzen 7 7840U is a notebook one.


Should you still have questions on choice between Core i9-11900K and Ryzen 7 7840U, ask them in Comments section, and we shall answer.

Vote for your favorite

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Intel Core i9-11900K
Core i9-11900K
AMD Ryzen 7 7840U
Ryzen 7 7840U

Similar processor comparisons

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Community ratings

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Questions & comments

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