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

Intel Core Ultra 9 285K vs Ultra 9 285HX

91 out of 100
Intel Core Ultra 9 285K
VS
85 out of 100
Intel Core Ultra 9 285HX
Intel Core Ultra 9 285K
Intel Core Ultra 9 285HX

We compared two 24-core CPUs: the 3.7 GHz Intel Core Ultra 9 285K (desktop) against the 2.8 GHz Ultra 9 285HX (laptop). 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.
๐Ÿ”Œ Usage Scenario:

Value for money (Beta)

Global average CPU prices are used by default! For better accuracy, enter your current prices and click โ€œCalculate".
Currency
VS

Key Differences

What are the key differences between 285HX and 285K
Advantages of Intel Core Ultra 9 285K
  • 9% faster in a single-core Geekbench v6 test - 3379 vs 3088 points
Advantages of Intel Core Ultra 9 285HX
  • Supports up to 256 GB DDR5-6400 RAM

Test in Benchmarks

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

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (11th and 13th 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)
File compression 1560 MB/sec 1540 MB/sec
Clang compilation 242.2 Klines/sec 227 Klines/sec
HTML 5 Browser 479.5 pages/sec 483.8 pages/sec
PDF Renderer 622.1 Mpixels/sec 592.1 Mpixels/sec
Text processing 371.2 pages/sec 350.1 pages/sec
Background blur 95.4 images/sec 90.1 images/sec
Photo processing 164.2 images/sec 161.3 images/sec
Ray tracing 52.3 Mpixels/sec 50.5 Mpixels/sec
Sources: GeekBench [1], [2]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 172.3 GOps/sec 154.3 GOps/sec
Floating point math 224.2 GOps/sec 193.9 GOps/sec
Find prime numbers 542M Primes/sec 457M Primes/sec
Random string sorting 94.9M Strings/sec 76.7M Strings/sec
Data encryption 57.7 GBytes/sec 48.3 GBytes/sec
Data compression 789.7 MBytes/sec 628.2 MBytes/sec
Physics 3933 Frames/sec 3444 Frames/sec
Extended instructions 62.3B Matrices/sec 48.8B Matrices/sec
Sources: PassMark [3], [4] โ€“ 8455 & 821 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 18.1 PPW 40.7 PPW
Geekbench 6 Multi / Watt 184.8 PPW 382.6 PPW
Passmark CPU Mark / Watt 537.8 PPW 1028.2 PPW
Blender / Watt 4.44 PPW 9.47 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
๐Ÿ“˜ 2026-06-17 (Olafur Torfi)Cinebench 2024142 / 2242
๐Ÿ“˜ 2026-02-01 (aDamatGeek)Cinebench 2024142 / 2383
๐Ÿ“˜ 2026-01-29 (GeneralJeep)Geekbench 6 CPU3134 / 21707
๐Ÿ“˜ 2025-12-31 (Szymon919191)Cinebench 2024141 / 2261
๐Ÿ“˜ 2025-12-26 (Bill)Geekbench 6 CPU3207 / 22197
Add View all (14)
Intel Core Ultra 9 285HX
DateBenchmarkResult
๐Ÿ“˜ 2025-04-19 (bikerboy80)Cinebench 2024126 / 2240
๐Ÿ“˜ 2025-04-19 (bikerboy85)Cinebench 2024126 / 2240
Add View all (2)

Specifications

Full technical specification of Intel Core Ultra 9 285K and Ultra 9 285HX

General

Vendor Intel Intel
Released October 11, 2024 January 6, 2025
Type Desktop Laptop
Instruction Set x86-64 x86-64
Codename Arrow Lake Arrow Lake
Model number 285K 285HX
Integrated GPU Arc iGPU (4-Cores) Arc Graphics (4-Cores)
Rival Equivalent - AMD Ryzen 9 9950X - AMD Ryzen 9 9955HX
Intel CPU rating (3rd and 12th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 8 8
Base Frequency (P) 3.7 GHz 2.8 GHz
Turbo Boost Frequency (P) 5.5 GHz 5.5 GHz
Efficient Cores
E-Cores 16 16
E-Threads 16 16
Base Frequency (E) 3.2 GHz 2.1 GHz
Turbo Boost Frequency (E) 4.6 GHz 4.6 GHz
Total
Total Cores 24 24
Total Threads 24 24
Bus Frequency 100 MHz 100 MHz
Multiplier 37x 28x
L1 Cache 192K (per core) 192K (per core)
L2 Cache 3MB (per core) 2MB (per core)
L3 Cache 36MB (shared) 36MB (shared)
Unlocked Multiplier Yes Yes

Package

Fabrication Process 3 nm 3 nm
TDP (PL1) 125 W 45-55 W (configurable)
Max. Boost TDP (PL2) 250 W 160 W
Socket FCLGA-1851 FCBGA-2114
Peak Temperature 105ยฐC 105ยฐC
Desktop CPU ranking (#8th place)

iGPU

Integrated Graphics Intel Arc iGPU (4-Cores) Arc Graphics (4-Cores)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 2000 MHz 2000 MHz
Shading Units 512 512
TMUs 32 32
ROPs 16 16
Execution Units 64 64
TGP 14 W 14 W
iGPU FLOPS
See: Intel Arc iGPU (4-Cores) benchmarks

Memory Support

Memory Types - DDR5-6400 - DDR5-6400
Max. Memory Size 192 GB 256 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s 102.4 GB/s
ECC Support Yes Yes

Misc

Official Site Intel Core Ultra 9 285K official page Intel Core Ultra 9 285HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 24 24

Cast your vote

Choose between two processors
19 (44.2%)
24 (55.8%)
Total votes: 43

Competitors

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2. Intel Core Ultra 9 285K vs AMD Ryzen 9 9950X (35)
3. Intel Core Ultra 9 285K vs Intel Core i9 14900K (8)
4. Intel Core Ultra 9 285K vs AMD Ryzen 9 7950X3D (2)
5. Intel Core Ultra 9 285K vs Intel Core Ultra 7 265K (2)
6. Intel Core Ultra 9 285HX vs Intel Core i9 14900HX (4)
7. Intel Core Ultra 9 285HX vs Intel Core Ultra 9 275HX
8. Intel Core Ultra 9 285HX vs AMD Ryzen 9 9955HX3D (12)
9. Intel Core Ultra 9 285HX vs AMD Ryzen AI Max+ Pro 395 (2)
10. Intel Core Ultra 9 285HX vs Intel Core Ultra 9 285H
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Comments

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