Home > CPU Comparison > Core i9 12900HX or Core i9 12900H: what's better?

Intel Core i9 12900HX vs i9 12900H

60 out of 100
Intel Core i9 12900HX
VS
55 out of 100
Intel Core i9 12900H
Intel Core i9 12900HX
Intel Core i9 12900H

We compared two laptop CPUs: the 2.3 GHz Intel Core i9 12900HX with 16-cores against the 2.5 GHz i9 12900H with 14-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 12900H and 12900HX
Advantages of Intel Core i9 12900HX
  • Unlocked multiplier
  • Supports up to 128 GB DDR5-4800 RAM
  • Has 6 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • Newer PCI Express version โ€“ 5.0
  • Has 2 more physical cores
Advantages of Intel Core i9 12900H
  • More powerful Intel Iris Xe Graphics (96EU) integrated graphics: 2.2 vs 0.8 TFLOPS

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i9 12900HX
vs
Core i9 12900H

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (101st and 156th 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 i9 12900HX +21%
14457
Core i9 12900H
11964
File compression 1110 MB/sec 898.1 MB/sec
Clang compilation 121.1 Klines/sec 97.6 Klines/sec
HTML 5 Browser 336.5 pages/sec 270 pages/sec
PDF Renderer 382.4 Mpixels/sec 325.3 Mpixels/sec
Text processing 254 pages/sec 248.3 pages/sec
Background blur 58.1 images/sec 52.7 images/sec
Photo processing 116.9 images/sec 94.2 images/sec
Ray tracing 29.6 Mpixels/sec 23.8 Mpixels/sec
Sources: GeekBench [1], [2] โ€“ 438 & 626 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Core i9 12900HX +24%
32932
Core i9 12900H
26596
Integer math 112.6 GOps/sec 91.3 GOps/sec
Floating point math 83.7 GOps/sec 66 GOps/sec
Find prime numbers 132M Primes/sec 104M Primes/sec
Random string sorting 43.6M Strings/sec 34.4M Strings/sec
Data encryption 22.7 GBytes/sec 18 GBytes/sec
Data compression 396.2 MBytes/sec 308.2 MBytes/sec
Physics 2020 Frames/sec 1700 Frames/sec
Extended instructions 24.1B Matrices/sec 18.4B Matrices/sec
Sources: PassMark [3], [4] โ€“ 515 & 3998 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i9 12900HX +45%
305.67
Core i9 12900H
210.35

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 23.1 PPW 21.9 PPW
Geekbench 6 Multi / Watt 262.9 PPW 265.9 PPW
Passmark CPU Mark / Watt 598.8 PPW 591 PPW
Blender / Watt 5.56 PPW 4.67 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 i9 12900HX
No benchmark results yet
Add
Intel Core i9 12900H
DateBenchmarkResult
๐Ÿ“˜ 2025-11-21 (Robert L)Cinebench 2024104 / 765
๐Ÿ“˜ 2025-05-02 (Toksik Vegeta)Cinebench 2024107 / 984
Add View all (2)

Specifications

Full technical specification of Intel Core i9 12900HX and i9 12900H

General

Vendor Intel Intel
Released May 10, 2022 January 4, 2022
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Alder Lake Alder Lake
Model number i9-12900HX i9-12900H
Integrated GPU UHD Graphics (32EU) Iris Xe Graphics (96EU)
Rival Equivalent - AMD Ryzen 9 6900HX - AMD Ryzen 9 6900HS
Successor - Intel Core Ultra 9 285HX - Intel Core Ultra 9 288V
Intel CPU rating (86th and 115th place)

CPU

Performance Cores
P-Cores 8 6
P-Threads 16 12
Base Frequency (P) 2.3 GHz 2.5 GHz
Turbo Boost Frequency (P) 5 GHz 5 GHz
Efficient Cores
E-Cores 8 8
E-Threads 8 8
Base Frequency (E) 1.7 GHz 1.8 GHz
Turbo Boost Frequency (E) 3.6 GHz 3.8 GHz
Total
Total Cores 16 14
Total Threads 24 20
Bus Frequency 100 MHz 100 MHz
Multiplier 23x 25x
L1 Cache 80K (per core) 80K (per core)
L2 Cache 1280K (per core) 1280K (per core)
L3 Cache 30MB (shared) 24MB (shared)
Unlocked Multiplier Yes No

Package

Fabrication Process 10 nm 10 nm
TDP (PL1) 45-55 W (configurable) 35-45 W (configurable)
Max. Boost TDP (PL2) 157 W 115 W
Socket BGA-1964 BGA-1744
Peak Temperature 100ยฐC 100ยฐC
Laptop processors ranking (108th and 152nd place)

iGPU

Integrated Graphics Intel UHD Graphics (32EU) Intel Iris Xe Graphics (96EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1550 MHz 1450 MHz
Shading Units 256 768
TMUs 16 48
ROPs 8 24
Execution Units 32 96
TGP 15 W 15 W
iGPU FLOPS
Core i9 12900HX
0.8 TFLOPS
Core i9 12900H +175%
2.2 TFLOPS
More info: Iris Xe Graphics G7 (96EU) compared to UHD Graphics 770

Memory Support

Memory Types - DDR5-4800
- DDR4-3200		 - DDR5-4800
- DDR4-3200
- LPDDR5-5200
- LPDDR4x-4267
Max. Memory Size 128 GB 64 GB
Memory Channels 2 2
Max. Memory Bandwidth 76.8 GB/s -
ECC Support No No

Misc

Official Site Intel Core i9 12900HX official page Intel Core i9 12900H official page
PCI Express Version 5.0 4.0
PCI Express Lanes 20 28

Cast your vote

Choose between two processors
29 (67.4%)
14 (32.6%)
Total votes: 43

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Comments

So which CPU will you choose: Intel Core i9 12900H or i9 12900HX?
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