Home > CPU Comparison > Core Ultra 9 285K or Core i9 11900K: what's better?

Intel Core Ultra 9 285K vs i9 11900K

91 out of 100
Intel Core Ultra 9 285K
VS
54 out of 100
Intel Core i9 11900K
Intel Core Ultra 9 285K
Intel Core i9 11900K

We compared two desktop CPUs: the 3.7 GHz Intel Core Ultra 9 285K with 24-cores against the 3.5 GHz i9 11900K with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

  1. Review
  2. Differences
  3. Performance
  4. Specs
  5. Comments

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
The "iGPU" and "Power Efficiency" have a minor impact on the NanoReview Score for desktop CPU.
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
πŸ”Œ Usage Scenario:

Value for money (Beta)

Global average CPU prices are used by default! For better accuracy, enter your current prices and click β€œCalculate".
Currency
VS
58.3
(Average)
Value Index
13.4
(Bad)

Key Differences

What are the key differences between 11900K and 285K
Advantages of Intel Core Ultra 9 285K
  • More modern manufacturing process – 3 versus 14 nanometers
  • Has 16 more physical cores
  • More powerful Intel Arc iGPU (4-Cores) integrated graphics: 2 vs 0.7 TFLOPS
  • Newer - released 3 years and 7 months later
  • Has 20 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • Around 52.4 GB/s (105%) higher theoretical memory bandwidth
  • Supports up to 192 GB DDR5-6400 RAM
  • 35% faster in a single-core Geekbench v6 test - 3379 vs 2494 points
  • Newer PCI Express version – 5.0
  • 4% higher Turbo Boost frequency (5.5 GHz vs 5.3 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 9 285K
vs
Core i9 11900K

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (#10th place)
Submit your benchmark results

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
Core Ultra 9 285K +106%
23095
Core i9 11900K
11196
File compression 1560 MB/sec 862.2 MB/sec
Clang compilation 242.2 Klines/sec 89.5 Klines/sec
HTML 5 Browser 479.5 pages/sec 228.1 pages/sec
PDF Renderer 622.1 Mpixels/sec 331.5 Mpixels/sec
Text processing 371.2 pages/sec 241.7 pages/sec
Background blur 95.4 images/sec 54.3 images/sec
Photo processing 164.2 images/sec 89.4 images/sec
Ray tracing 52.3 Mpixels/sec 20.7 Mpixels/sec
Sources: GeekBench [1], [2] – 1034 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Core Ultra 9 285K +170%
67230
Core i9 11900K
24906
Integer math 172.3 GOps/sec 88.9 GOps/sec
Floating point math 224.2 GOps/sec 52.7 GOps/sec
Find prime numbers 542M Primes/sec 67M Primes/sec
Random string sorting 94.9M Strings/sec 37.9M Strings/sec
Data encryption 57.7 GBytes/sec 15.8 GBytes/sec
Data compression 789.7 MBytes/sec 328.6 MBytes/sec
Physics 3933 Frames/sec 1047 Frames/sec
Extended instructions 62.3B Matrices/sec 23.3B Matrices/sec
Sources: PassMark [3], [4] – 8455 & 4708 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core Ultra 9 285K +160%
554.43
Core i9 11900K
213.02

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 18.1 PPW 6.6 PPW
Geekbench 6 Multi / Watt 184.8 PPW 89.6 PPW
Passmark CPU Mark / Watt 537.8 PPW 199.2 PPW
Blender / Watt 4.44 PPW 1.7 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Recent User Tests

The latest benchmark tests that have been submitted by users
Intel Core Ultra 9 285K
DateBenchmarkResult
πŸ“˜ 2026-06-17 (Olafur Torfi)Cinebench 2024142 / 2242
πŸ“˜ 2026-02-01 (aDamatGeek)Cinebench 2024142 / 2383
πŸ“˜ 2026-01-29 (GeneralJeep)GeekBench3134 / 21707
πŸ“˜ 2025-12-31 (Szymon919191)Cinebench 2024141 / 2261
πŸ“˜ 2025-12-26 (Bill)GeekBench3207 / 22197
Add View all (14)
Intel Core i9 11900K
DateBenchmarkResult
πŸ“˜ 2025-04-20 (Zodiax)Cinebench 202495 / 819
πŸ“˜ 2025-02-26 (poweruser65535)Cinebench 2024102 / 870
πŸ“˜ 2024-10-15 (antoine)Cinebench 202489 / 698
Add View all (3)

Specifications

Full technical specification of Intel Core Ultra 9 285K and i9 11900K

General

Vendor Intel Intel
Released October 11, 2024 March 16, 2021
Type Desktop Desktop
Instruction Set x86-64 x86-64
Codename Arrow Lake Rocket Lake
Model number 285K i9-11900K
Integrated GPU Arc iGPU (4-Cores) UHD Graphics 750
Rival Equivalent - AMD Ryzen 9 9950X - AMD Ryzen 9 5900X
Successor - - Intel Core Ultra 9 285K
Intel CPU rating (3rd and 127th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 8 16
Base Frequency (P) 3.7 GHz 3.5 GHz
Turbo Boost Frequency (P) 5.5 GHz 5.3 GHz
Efficient Cores
E-Cores 16 -
E-Threads 16 -
Base Frequency (E) 3.2 GHz -
Turbo Boost Frequency (E) 4.6 GHz -
Total
Total Cores 24 8
Total Threads 24 16
Bus Frequency 100 MHz 100 MHz
Multiplier 37x 35x
Bus Bandwidth - 8 GT/s
L1 Cache 192K (per core) 64K (per core)
L2 Cache 3MB (per core) 512K (per core)
L3 Cache 36MB (shared) 16MB (shared)
Unlocked Multiplier Yes Yes

Package

Fabrication Process 3 nm 14 nm
TDP (PL1) 125 W 125 W
Max. Boost TDP (PL2) 250 W -
Socket FCLGA-1851 LGA-1200
Peak Temperature 105Β°C 100Β°C
Desktop CPU ranking (8th and 95th place)

iGPU

Integrated Graphics Intel Arc iGPU (4-Cores) Intel UHD Graphics 750
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 2000 MHz 1300 MHz
Shading Units 512 256
TMUs 32 64
ROPs 16 32
Execution Units 64 32
TGP 14 W 15 W
iGPU FLOPS
Core Ultra 9 285K +186%
2 TFLOPS
Core i9 11900K
0.7 TFLOPS
More info: UHD Graphics 750 compared to Arc iGPU (4-Cores)

Memory Support

Memory Types - DDR5-6400 - DDR4-3200
Max. Memory Size 192 GB 128 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s 50 GB/s
ECC Support Yes No

Misc

Official Site Intel Core Ultra 9 285K official page Intel Core i9 11900K official page
PCI Express Version 5.0 4.0
PCI Express Lanes 24 20

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Competitors

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6. Intel Core Ultra 9 285K vs Intel Core i9 14900KS (8)
7. Intel Core Ultra 9 285K vs Intel Core Ultra 7 265K (2)
8. Intel Core Ultra 9 285K vs AMD Ryzen 9 7950X3D (2)
9. Intel Core Ultra 9 285K vs AMD Ryzen 9 9900X (1)
10. Intel Core Ultra 9 285K vs Intel Core i7 14700K
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Comments

So which CPU will you choose: Intel Core i9 11900K or Ultra 9 285K?
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