Home > CPU Comparison > Core Ultra 9 285HX or Core i9 12900HX: what's better?

Intel Core Ultra 9 285HX vs i9 12900HX

82 out of 100
Intel Core Ultra 9 285HX
VS
60 out of 100
Intel Core i9 12900HX
Intel Core Ultra 9 285HX
Intel Core i9 12900HX

We compared two laptop CPUs: the 2.8 GHz Intel Core Ultra 9 285HX with 24-cores against the 2.3 GHz i9 12900HX with 16-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
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
๐Ÿ”Œ Usage Scenario:

Key Differences

What are the key differences between 12900HX and 285HX
Advantages of Intel Core Ultra 9 285HX
  • More modern manufacturing process โ€“ 3 versus 10 nanometers
  • Newer - released 2 years and 8 months later
  • More powerful Arc Graphics (4-Cores) integrated graphics: 2 vs 0.8 TFLOPS
  • Supports up to 256 GB DDR5-6400 RAM
  • Has 8 more physical cores
  • Around 25.6 GB/s (33%) higher theoretical memory bandwidth
  • Has 6 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • 23% faster in a single-core Geekbench v6 test - 3088 vs 2517 points
  • 10% higher Turbo Boost frequency (5.5 GHz vs 5 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 9 285HX
vs
Core i9 12900HX

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (11th and 101st 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 1540 MB/sec 1110 MB/sec
Clang compilation 227 Klines/sec 121.1 Klines/sec
HTML 5 Browser 483.8 pages/sec 336.5 pages/sec
PDF Renderer 592.1 Mpixels/sec 382.4 Mpixels/sec
Text processing 350.1 pages/sec 254 pages/sec
Background blur 90.1 images/sec 58.1 images/sec
Photo processing 161.3 images/sec 116.9 images/sec
Ray tracing 50.5 Mpixels/sec 29.6 Mpixels/sec
Sources: GeekBench [1], [2] โ€“ 438 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 154.3 GOps/sec 112.6 GOps/sec
Floating point math 193.9 GOps/sec 83.7 GOps/sec
Find prime numbers 457M Primes/sec 132M Primes/sec
Random string sorting 76.7M Strings/sec 43.6M Strings/sec
Data encryption 48.3 GBytes/sec 22.7 GBytes/sec
Data compression 628.2 MBytes/sec 396.2 MBytes/sec
Physics 3444 Frames/sec 2020 Frames/sec
Extended instructions 48.8B Matrices/sec 24.1B Matrices/sec
Sources: PassMark [3], [4] โ€“ 821 & 515 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 40.7 PPW 23.1 PPW
Geekbench 6 Multi / Watt 382.6 PPW 262.9 PPW
Passmark CPU Mark / Watt 1028.2 PPW 598.8 PPW
Blender / Watt 9.47 PPW 5.56 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 285HX
DateBenchmarkResult
๐Ÿ“˜ 2025-04-19 (bikerboy80)Cinebench 2024126 / 2240
๐Ÿ“˜ 2025-04-19 (bikerboy85)Cinebench 2024126 / 2240
Add View all (2)
Intel Core i9 12900HX
No benchmark results yet
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Specifications

Full technical specification of Intel Core Ultra 9 285HX and i9 12900HX

General

Vendor Intel Intel
Released January 6, 2025 May 10, 2022
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Arrow Lake Alder Lake
Model number 285HX i9-12900HX
Integrated GPU Arc Graphics (4-Cores) UHD Graphics (32EU)
Rival Equivalent - AMD Ryzen 9 9955HX - AMD Ryzen 9 6900HX
Successor - - Intel Core Ultra 9 285HX
Intel CPU rating (12th and 86th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 8 16
Base Frequency (P) 2.8 GHz 2.3 GHz
Turbo Boost Frequency (P) 5.5 GHz 5 GHz
Efficient Cores
E-Cores 16 8
E-Threads 16 8
Base Frequency (E) 2.1 GHz 1.7 GHz
Turbo Boost Frequency (E) 4.6 GHz 3.6 GHz
Total
Total Cores 24 16
Total Threads 24 24
Bus Frequency 100 MHz 100 MHz
Multiplier 28x 23x
L1 Cache 192K (per core) 80K (per core)
L2 Cache 2MB (per core) 1280K (per core)
L3 Cache 36MB (shared) 30MB (shared)
Unlocked Multiplier Yes Yes

Package

Fabrication Process 3 nm 10 nm
TDP (PL1) 45-55 W (configurable) 45-55 W (configurable)
Max. Boost TDP (PL2) 160 W 157 W
Socket FCBGA-2114 BGA-1964
Peak Temperature 105ยฐC 100ยฐC
Laptop processors ranking (19th and 108th place)

iGPU

Integrated Graphics Arc Graphics (4-Cores) Intel UHD Graphics (32EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 2000 MHz 1550 MHz
Shading Units 512 256
TMUs 32 16
ROPs 16 8
Execution Units 64 32
TGP 14 W 15 W
iGPU FLOPS
Core Ultra 9 285HX +150%
2 TFLOPS
Core i9 12900HX
0.8 TFLOPS
More info: UHD Graphics 770 compared to Arc iGPU (4-Cores)

Memory Support

Memory Types - DDR5-6400 - DDR5-4800
- DDR4-3200
Max. Memory Size 256 GB 128 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s 76.8 GB/s
ECC Support Yes No

Misc

Official Site Intel Core Ultra 9 285HX official page Intel Core i9 12900HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 24 20

Cast your vote

Choose between two processors
2 (100%)
0 (0%)
Total votes: 2

Competitors

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5. Intel Core Ultra 9 285HX vs Intel Core Ultra 9 275HX
6. Intel Core Ultra 9 285HX vs AMD Ryzen AI Max+ Pro 395 (2)
7. Intel Core Ultra 9 285HX vs Intel Core Ultra 9 285H
8. Intel Core i9 12900HX vs Intel Core i9 14900HX
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Comments

So which CPU will you choose: Intel Core i9 12900HX or Ultra 9 285HX?
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