Intel Core Ultra 9 285HX

Intel Core Ultra 9 285HX
  • Cores: 24
  • L3 cache: 36MB (shared)
  • TDP: 45-55 W (max. boost up to 160 W)
  • Transistor size: 3 nm
Core Ultra 9 285HX - laptop processor produced by Intel for socket FCBGA-2114 that has 24 cores and 24 threads. The base clock frequency of the CPU is 2800 MHz, but due to Turbo Boost technology, it can perform up to 5500 MHz. The size of the L3 cache is 36 MB. Please note that this chip has integrated graphics Arc Graphics (4-Cores).

Review

Single-Core Performance
85
Multi-Core Performance
87
Power Efficiency
73
Integrated Graphics
51
NanoReview Final Score
82
Compare Intel Core Ultra 9 285HX with other CPUs

Test in Benchmarks

Performance test of Intel Core Ultra 9 285HX in benchmarks

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
126
Cinebench 2024 (Multi)
2240
Cinebench Scores - 11th place

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
3088
Geekbench 6 (Multi-Core)
21043
File compression 1540 MB/sec
Clang compilation 227 Klines/sec
HTML 5 Browser 483.8 pages/sec
PDF Renderer 592.1 Mpixels/sec
Text processing 350.1 pages/sec
Background blur 90.1 images/sec
Photo processing 161.3 images/sec
Ray tracing 50.5 Mpixels/sec
Sources: GeekBench [1]

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
4609
Passmark CPU (Multi-Core)
56553
Integer math 154.3 GOps/sec
Floating point math 193.9 GOps/sec
Find prime numbers 457M Primes/sec
Random string sorting 76.7M Strings/sec
Data encryption 48.3 GBytes/sec
Data compression 628.2 MBytes/sec
Physics 3444 Frames/sec
Extended instructions 48.8B Matrices/sec
Sources: PassMark [3] โ€“ 821 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
521.1

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 40.7 PPW
Geekbench 6 Multi / Watt 382.6 PPW
Passmark CPU Mark / Watt 1028.2 PPW
Blender / Watt 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
DateBenchmarkResult
๐Ÿ“˜ 2025-04-19 (bikerboy80)Cinebench 2024126 / 2240
๐Ÿ“˜ 2025-04-19 (bikerboy85)Cinebench 2024126 / 2240

Specifications

Core Ultra 9 285HX technical specifications

General

Vendor Intel
Released January 6, 2025
Type Laptop
Instruction Set x86-64
Codename Arrow Lake
Model number 285HX
Integrated GPU Arc Graphics (4-Cores)
AMD Equivalent - AMD Ryzen 9 9955HX
Intel CPU rating - 12th place

CPU

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

Package

Fabrication Process 3 nm
TDP (PL1) 45-55 W (configurable)
Max. Boost TDP (PL2) 160 W
Socket FCBGA-2114
Peak Temperature 105ยฐC

iGPU

Integrated Graphics Arc Graphics (4-Cores)
GPU Base Clock 300 MHz
GPU Boost Clock 2000 MHz
Shading Units 512
TMUs 32
ROPs 16
Execution Units 64
TGP 14 W
iGPU FLOPS
2 TFLOPS
See also: Intel Arc iGPU (4-Cores) โ€“ integrated graphics of Intel Core Ultra 9 285HX

Memory Support

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

Misc

Official Site Intel Core Ultra 9 285HX official page
PCI Express Version 5.0
PCI Express Lanes 24
Technologies
- Compute: ABM, ADX, AI Boost 3.0, AVX-VNNI, BMI1, BMI2, CLMUL, DLBoost 3.0, F16C, IPU 6.0, SHA
- Performance: CFET, EIST, Speed Shift, TBMT 3.0, TBT 2.0, Thread Director
- Virtualization: VT-d, VT-rp, VT-x, VT-x EPT
- Security: MBEC, RDRAND, SIPP, TDT, TME, TXT, XD bit, vPro

Comments

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Avatar
Darko March 2, 2026 at 09:23 PM
Why is this higher ranked than the pather lake chip? Panther lake absolutely demolishes it in efficiency and gpu
+1 Reply