i9-11900K vs Ultra 9 285H

VS

Aggregate performance score

Core Ultra 9 285H
16 cores / 16 threads, 45 Watt
21.27
+34.1%
Core i9-11900K
2021
8 cores / 16 threads, 125 Watt
15.86

Core Ultra 9 285H outperforms Core i9-11900K by a substantial 34% based on our aggregate benchmark results.

Primary details

Comparing Core Ultra 9 285H and Core i9-11900K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking256426
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluationno data18.99
Market segmentLaptopDesktop processor
Power efficiency44.5011.94
Architecture codenameArrow Lake-HRocket Lake (2021)
Release dateno data (2024 years ago)16 March 2021 (3 years ago)
Launch price (MSRP)no data$539

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Core Ultra 9 285H and Core i9-11900K 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 cores16 (Hexadeca-Core)8 (Octa-Core)
Threads1616
Base clock speedno data3.5 GHz
Boost clock speed5.4 GHz5.2 GHz
Bus rateno data8 GT/s
L1 cacheno data80 KB (per core)
L2 cacheno data512 KB (per core)
L3 cacheno data16 MB (shared)
Chip lithographyno data14 nm
Die sizeno data276 mm2
Maximum core temperatureno data100 °C
Maximum case temperature (TCase)no data72 °C
64 bit support-+
Windows 11 compatibilityno data+
Unlocked multiplier-+

Compatibility

Information on Core Ultra 9 285H and Core i9-11900K 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 configurationno data1
Socketno dataFCLGA1200
Power consumption (TDP)45 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core Ultra 9 285H and Core i9-11900K. You'll probably need this information if you require some particular technology.

Instruction set extensionsno dataIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI-+
AVX-+
vProno data+
Enhanced SpeedStep (EIST)no data+
Turbo Boost Technologyno data2.0
Hyper-Threading Technologyno data+
TSX-+
Idle Statesno data+
Thermal Monitoring-+
SIPP-+
Turbo Boost Max 3.0no data+
Deep Learning Boost-+

Security technologies

Core Ultra 9 285H and Core i9-11900K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDBno data+
Secure Keyno data+
Identity Protection-+
SGXno data-
OS Guardno data+

Virtualization technologies

Virtual machine speed-up technologies supported by Core Ultra 9 285H and Core i9-11900K are enumerated here.

VT-dno data+
VT-xno data+
EPTno data+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core Ultra 9 285H and Core i9-11900K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR4
Maximum memory sizeno data128 GB
Max memory channelsno data2
Maximum memory bandwidthno data50 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataIntel UHD Graphics 750
Max video memoryno data64 GB
Quick Sync Video-+
Clear Videono data+
Clear Video HDno data+
Graphics max frequencyno data1.3 GHz
Execution Unitsno data32
InTru 3Dno data+

Graphics interfaces

Available interfaces and connections of Core Ultra 9 285H and Core i9-11900K integrated GPUs.

Number of displays supportedno data3

Graphics image quality

Maximum display resolutions supported by Core Ultra 9 285H and Core i9-11900K integrated GPUs, including resolutions over different interfaces.

4K resolution supportno data+
Max resolution over HDMI 1.4no data4096x2160@60Hz
Max resolution over eDPno data5120 x 3200 @60Hz
Max resolution over DisplayPortno data5120 x 3200 @60Hz

Graphics API support

APIs supported by Core Ultra 9 285H and Core i9-11900K integrated GPUs, sometimes API versions are included.

DirectXno data12.1
OpenGLno data4.5

Peripherals

Specifications and connection of peripherals supported by Core Ultra 9 285H and Core i9-11900K.

PCIe versionno data4.0
PCI Express lanesno data20

Gaming performance

Pros & cons summary


Performance score 21.27 15.86
Physical cores 16 8
Power consumption (TDP) 45 Watt 125 Watt

Ultra 9 285H has a 34.1% higher aggregate performance score, 100% more physical cores, and 177.8% lower power consumption.

The Core Ultra 9 285H is our recommended choice as it beats the Core i9-11900K in performance tests.

Be aware that Core Ultra 9 285H is a notebook processor while Core i9-11900K is a desktop one.


Should you still have questions on choice between Core Ultra 9 285H and Core i9-11900K, ask them in Comments section, and we shall answer.

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Intel Core Ultra 9 285H
Core Ultra 9 285H
Intel Core i9-11900K
Core i9-11900K

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