Ultra 5 125H vs i9-11900K

Aggregate performance score

Core i9-11900K
2021
8 cores / 16 threads, 125 Watt
16.48
+13.2%
Core Ultra 5 125H
2023
14 cores / 18 threads, 28 Watt
14.56

Core i9-11900K outperforms Core Ultra 5 125H by a moderate 13% based on our aggregate benchmark results.

Primary details

Comparing Core i9-11900K and Core Ultra 5 125H processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking417518
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation18.34no data
Market segmentDesktop processorLaptop
Seriesno dataIntel Meteor Lake-H
Power efficiency12.0247.42
Architecture codenameRocket Lake (2021)Meteor Lake-H (2023)
Release date16 March 2021 (3 years ago)14 December 2023 (less than a year ago)
Launch price (MSRP)$539$375

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core i9-11900K and Core Ultra 5 125H 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)14 (Tetradeca-Core)
Threads1618
Base clock speed3.5 GHz3.6 GHz
Boost clock speed5.2 GHz4.5 GHz
Bus rate8 GT/sno data
L1 cache80 KB (per core)112 KB (per core)
L2 cache512 KB (per core)2 MB (per core)
L3 cache16 MB (shared)18 MB (shared)
Chip lithography14 nmIntel 4 nm
Die size276 mm2no data
Maximum core temperature100 °C110 °C
Maximum case temperature (TCase)72 °Cno data
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier+-

Compatibility

Information on Core i9-11900K and Core Ultra 5 125H 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
SocketFCLGA1200FCBGA2049
Power consumption (TDP)125 Watt28 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-11900K and Core Ultra 5 125H. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI++
AVX++
vPro++
Enhanced SpeedStep (EIST)++
Speed Shiftno data+
Turbo Boost Technology2.0no data
Hyper-Threading Technology++
TSX++
Idle States+no data
Thermal Monitoring++
Flex Memory Accessno data+
SIPP+-
Turbo Boost Max 3.0+-
Deep Learning Boost++
Supported AI Software Frameworks-OpenVINO™, WindowsML, ONNX RT

Security technologies

Core i9-11900K and Core Ultra 5 125H technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-11900K and Core Ultra 5 125H are enumerated here.

VT-d++
VT-x++
EPT++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-11900K and Core Ultra 5 125H. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4DDR5
Maximum memory size128 GB96 GB
Max memory channels22
Maximum memory bandwidth50 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardIntel UHD Graphics 750Intel® Arc™ graphics
Max video memory64 GBno data
Quick Sync Video++
Clear Video+no data
Clear Video HD+no data
Graphics max frequency1.3 GHz2.2 GHz
Execution Units32no data
InTru 3D+no data

Graphics interfaces

Available interfaces and connections of Core i9-11900K and Core Ultra 5 125H integrated GPUs.

Number of displays supported34

Graphics image quality

Maximum display resolutions supported by Core i9-11900K and Core Ultra 5 125H integrated GPUs, including resolutions over different interfaces.

4K resolution support+no data
Max resolution over HDMI 1.44096x2160@60Hz4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL)
Max resolution over eDP5120 x 3200 @60Hz3840x2400 @ 120Hz
Max resolution over DisplayPort5120 x 3200 @60Hz7680 x 4320 @ 60Hz

Graphics API support

APIs supported by Core i9-11900K and Core Ultra 5 125H integrated GPUs, sometimes API versions are included.

DirectX12.112.2
OpenGL4.54.6

Peripherals

Specifications and connection of peripherals supported by Core i9-11900K and Core Ultra 5 125H.

PCIe version4.05.0
PCI Express lanes2028
PCI supportno data5.0 and 4.0

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.

i9-11900K 16.48
+13.2%
Ultra 5 125H 14.56

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 25220
+13.2%
Ultra 5 125H 22278

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
+13%
Ultra 5 125H 9335

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
+20.5%
Ultra 5 125H 51478

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
+12.6%
Ultra 5 125H 4.48

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
+0.4%
Ultra 5 125H 27

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
+15.9%
Ultra 5 125H 2054

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
+3.4%
Ultra 5 125H 247

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
+5.4%
Ultra 5 125H 2.94

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
+45.3%
Ultra 5 125H 9

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
+3.6%
Ultra 5 125H 132

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
+1.4%
Ultra 5 125H 305

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
+45.4%
Ultra 5 125H 6209

Geekbench 5.5 Multi-Core

i9-11900K 10483
Ultra 5 125H 10542
+0.6%

Blender(-)

i9-11900K 212
Ultra 5 125H 267
+25.8%

Geekbench 5.5 Single-Core

i9-11900K 1788
+6.7%
Ultra 5 125H 1676

7-Zip Single

i9-11900K 6347
+25.9%
Ultra 5 125H 5043

WebXPRT 3

i9-11900K 284
+11.6%
Ultra 5 125H 254

Gaming performance

Pros & cons summary


Performance score 16.48 14.56
Recency 16 March 2021 14 December 2023
Physical cores 8 14
Threads 16 18
Power consumption (TDP) 125 Watt 28 Watt

i9-11900K has a 13.2% higher aggregate performance score.

Ultra 5 125H, on the other hand, has an age advantage of 2 years, 75% more physical cores and 12.5% more threads, and 346.4% lower power consumption.

The Core i9-11900K is our recommended choice as it beats the Core Ultra 5 125H in performance tests.

Note that Core i9-11900K is a desktop processor while Core Ultra 5 125H is a notebook one.


Should you still have questions on choice between Core i9-11900K and Core Ultra 5 125H, ask them in Comments section, and we shall answer.

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Intel Core i9-11900K
Core i9-11900K
Intel Core Ultra 5 125H
Core Ultra 5 125H

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Community ratings

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Questions & comments

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