i9-14900K vs Ryzen 7 7840U

Aggregate performance score

Ryzen 7 7840U
2023
8 cores / 16 threads, 28 Watt
15.73
Core i9-14900K
2023
24 cores / 32 threads, 125 Watt
37.86
+141%

Core i9-14900K outperforms Ryzen 7 7840U by a whopping 141% based on our aggregate benchmark results.

Primary details

Comparing Ryzen 7 7840U and Core i9-14900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking42781
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data61.53
Market segmentLaptopDesktop processor
SeriesAMD Phoenix (Zen 4, Ryzen 7040)no data
Power efficiency53.1728.66
Architecture codenamePhoenix-U (Zen 4) (2023)Raptor Lake-R (2023−2024)
Release dateMay 2023 (1 year ago)17 October 2023 (1 year ago)
Launch price (MSRP)no data$589

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Ryzen 7 7840U and Core i9-14900K 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)24 (Tetracosa-Core)
Threads1632
Base clock speed3.3 GHz3.2 GHz
Boost clock speed5.1 GHz5.8 GHz
L1 cache64K (per core)80 KB (per core)
L2 cache1 MB (per core)2 MB (per core)
L3 cache16 MB (shared)36 MB (shared)
Chip lithography4 nmIntel 7 nm
Die size178 mm2257 mm2
Maximum core temperature100 °C100 °C
Number of transistors25,000 millionno data
64 bit support++
Windows 11 compatibility++
Unlocked multiplier-+

Compatibility

Information on Ryzen 7 7840U and Core i9-14900K 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
SocketFP8FCLGA1700
Power consumption (TDP)28 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Ryzen 7 7840U and Core i9-14900K. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
Enhanced SpeedStep (EIST)no data+
Speed Shiftno data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Idle Statesno data+
Thermal Monitoring-+
SIPP-+
Turbo Boost Max 3.0no data+
Precision Boost 2+no data
Deep Learning Boost-+

Security technologies

Ryzen 7 7840U and Core i9-14900K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
Secure Keyno data+
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Ryzen 7 7840U and Core i9-14900K are enumerated here.

AMD-V+-
VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840U and Core i9-14900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR5-5600DDR4, DDR5
Maximum memory sizeno data192 GB
Max memory channelsno data2
Maximum memory bandwidthno data89.6 GB/s
ECC memory support-+

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card
Compare
AMD Radeon 780MIntel UHD Graphics 770
Quick Sync Video-+
Clear Video HDno data+
Graphics max frequencyno data1.65 GHz
Execution Unitsno data32

Graphics interfaces

Available interfaces and connections of Ryzen 7 7840U and Core i9-14900K integrated GPUs.

Number of displays supportedno data4

Graphics image quality

Maximum display resolutions supported by Ryzen 7 7840U and Core i9-14900K integrated GPUs, including resolutions over different interfaces.

Max resolution over HDMI 1.4no data4096 x 2160 @ 60Hz
Max resolution over eDPno data5120 x 3200 @ 120Hz
Max resolution over DisplayPortno data7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Ryzen 7 7840U and Core i9-14900K integrated GPUs, sometimes API versions are included.

DirectXno data12
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Ryzen 7 7840U and Core i9-14900K.

PCIe version4.05.0 and 4.0
PCI Express lanes2016

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 7840U 15.73
i9-14900K 37.86
+141%

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 7840U 24990
i9-14900K 60144
+141%

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.

Ryzen 7 7840U 2081
i9-14900K 3080
+48%

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.

Ryzen 7 7840U 8735
i9-14900K 20678
+137%

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 7840U 6669
i9-14900K 12643
+89.6%

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 7840U 38490
i9-14900K 94801
+146%

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 7840U 12482
i9-14900K 22773
+82.4%

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 7840U 3.51
i9-14900K 2.07
+69.6%

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 7840U 23
i9-14900K 72
+219%

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 7840U 1990
i9-14900K 6103
+207%

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 7840U 264
i9-14900K 325
+22.9%

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 7840U 2.79
i9-14900K 4.02
+44.1%

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 7840U 8.5
i9-14900K 26.7
+216%

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.  

Ryzen 7 7840U 109
i9-14900K 181
+66.5%

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.  

Ryzen 7 7840U 237
i9-14900K 346
+45.6%

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 7840U 5723
i9-14900K 16108
+181%

Geekbench 5.5 Multi-Core

Ryzen 7 7840U 9382
i9-14900K 25199
+169%

Blender(-)

Ryzen 7 7840U 260
+205%
i9-14900K 85

Geekbench 5.5 Single-Core

Ryzen 7 7840U 1738
i9-14900K 2369
+36.3%

7-Zip Single

Ryzen 7 7840U 5952
i9-14900K 7932
+33.3%

7-Zip

Ryzen 7 7840U 55145
i9-14900K 145207
+163%

WebXPRT 3

Ryzen 7 7840U 262
i9-14900K 386
+47.3%

Gaming performance

Pros & cons summary


Performance score 15.73 37.86
Integrated graphics card 18.31 6.15
Physical cores 8 24
Threads 16 32
Power consumption (TDP) 28 Watt 125 Watt

Ryzen 7 7840U has 197.7% faster integrated GPU, and 346.4% lower power consumption.

i9-14900K, on the other hand, has a 140.7% higher aggregate performance score, and 200% more physical cores and 100% more threads.

The Core i9-14900K is our recommended choice as it beats the Ryzen 7 7840U in performance tests.

Be aware that Ryzen 7 7840U is a notebook processor while Core i9-14900K is a desktop one.


Should you still have questions on choice between Ryzen 7 7840U and Core i9-14900K, ask them in Comments section, and we shall answer.

Vote for your favorite

Do you think we are right or mistaken in our choice? Vote by clicking "Like" button near your favorite CPU.


AMD Ryzen 7 7840U
Ryzen 7 7840U
Intel Core i9-14900K
Core i9-14900K

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Community ratings

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