Ultra 9 285K vs i9-9920X

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Aggregate performance score

Core i9-9920X
2018
12 cores / 24 threads, 165 Watt
15.84
Core Ultra 9 285K
2024
24 cores / 24 threads, 125 Watt
43.08
+172%

Core Ultra 9 285K outperforms Core i9-9920X by a whopping 172% based on our aggregate benchmark results.

Primary details

Comparing Core i9-9920X and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking43053
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation5.2474.34
Market segmentDesktop processorDesktop processor
SeriesIntel Core i9no data
Power efficiency9.0932.62
Architecture codenameSkylake (server) (2017−2018)Arrow Lake-S (2024−2025)
Release date19 October 2018 (6 years ago)24 October 2024 (less than a year ago)
Launch price (MSRP)$1,189$589

Cost-effectiveness evaluation

Performance per price, higher is better.

Ultra 9 285K has 1319% better value for money than i9-9920X.

Detailed specifications

Core i9-9920X and Core Ultra 9 285K 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 cores12 (Dodeca-Core)24 (Tetracosa-Core)
Threads2424
Base clock speed3.5 GHz3.7 GHz
Boost clock speed4.5 GHz5.7 GHz
Bus typeDMI 3.0no data
Bus rate4 × 8 GT/s250 MHz
Multiplier35no data
L1 cache64 KB (per core)112 KB (per core)
L2 cache1 MB (per core)3 MB (per core)
L3 cache19.25 MB (shared)36 MB (shared)
Chip lithography14 nm3 nm
Die size484 mm2243 mm2
Maximum core temperature92 °Cno data
Maximum case temperature (TCase)72 °Cno data
Number of transistorsno data17,800 million
64 bit support++
Windows 11 compatibility+no data
Unlocked multiplier++

Compatibility

Information on Core i9-9920X and Core Ultra 9 285K 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 configuration1 (Uniprocessor)1
SocketFCLGA20661851
Power consumption (TDP)165 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Core i9-9920X and Core Ultra 9 285K. 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++
vProno data+
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0no data
Hyper-Threading Technology+no data
TSX++
Turbo Boost Max 3.0+no data

Security technologies

Core i9-9920X and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.

TXTno data+
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Core i9-9920X and Core Ultra 9 285K are enumerated here.

VT-d++
VT-x++

Memory specs

Types, maximum amount and channel quantity of RAM supported by Core i9-9920X and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR4-2666DDR5 Depends on motherboard
Maximum memory size128 GBno data
Max memory channels4no data
Maximum memory bandwidth85.33 GB/sno data

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AArc Xe-LPG Graphics 64EU

Peripherals

Specifications and connection of peripherals supported by Core i9-9920X and Core Ultra 9 285K.

PCIe version3.05.0
PCI Express lanes4420

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.

i9-9920X 15.84
Ultra 9 285K 43.08
+172%

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.

i9-9920X 25163
Ultra 9 285K 68431
+172%

Gaming performance

Pros & cons summary


Performance score 15.84 43.08
Recency 19 October 2018 24 October 2024
Physical cores 12 24
Chip lithography 14 nm 3 nm
Power consumption (TDP) 165 Watt 125 Watt

Ultra 9 285K has a 172% higher aggregate performance score, an age advantage of 6 years, 100% more physical cores, a 366.7% more advanced lithography process, and 32% lower power consumption.

The Core Ultra 9 285K is our recommended choice as it beats the Core i9-9920X in performance tests.


Should you still have questions on choice between Core i9-9920X and Core Ultra 9 285K, ask them in Comments section, and we shall answer.

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Intel Core i9-9920X
Core i9-9920X
Intel Core Ultra 9 285K
Core Ultra 9 285K

Similar processor comparisons

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


4.2 15 votes

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3.4 167 votes

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Questions & comments

Here you can ask a question about Core i9-9920X or Core Ultra 9 285K, agree or disagree with our judgements, or report an error or mismatch.