Home > CPU Comparison > Core i9 14900HX or Core i9 12900HX: what's better?

Intel Core i9 14900HX vs i9 12900HX

72 out of 100
Intel Core i9 14900HX
VS
60 out of 100
Intel Core i9 12900HX
Intel Core i9 14900HX
Intel Core i9 12900HX

We compared two laptop CPUs: the 2.2 GHz Intel Core i9 14900HX 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.
πŸ”Œ Usage Scenario:

Key Differences

What are the key differences between 12900HX and 14900HX
Advantages of Intel Core i9 14900HX
  • Newer - released 1 year and 8 months later
  • Has 8 more physical cores
  • Supports up to 192 GB DDR5-5600 RAM
  • Has 6 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • 16% higher Turbo Boost frequency (5.8 GHz vs 5 GHz)
  • Around 12.8 GB/s (17%) higher theoretical memory bandwidth
  • 20% faster in a single-core Geekbench v6 test - 3029 vs 2517 points

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i9 14900HX
vs
Core i9 12900HX

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (44th 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)
Core i9 14900HX +27%
18430
Core i9 12900HX
14457
File compression 1420 MB/sec 1110 MB/sec
Clang compilation 173.5 Klines/sec 121.1 Klines/sec
HTML 5 Browser 463.6 pages/sec 336.5 pages/sec
PDF Renderer 508.4 Mpixels/sec 382.4 Mpixels/sec
Text processing 287.7 pages/sec 254 pages/sec
Background blur 54.6 images/sec 58.1 images/sec
Photo processing 154.7 images/sec 116.9 images/sec
Ray tracing 39.9 Mpixels/sec 29.6 Mpixels/sec
Sources: GeekBench [1], [2] – 545 & 438 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Core i9 14900HX +33%
43705
Core i9 12900HX
32932
Integer math 157.2 GOps/sec 112.6 GOps/sec
Floating point math 112.1 GOps/sec 83.7 GOps/sec
Find prime numbers 193M Primes/sec 132M Primes/sec
Random string sorting 60.8M Strings/sec 43.6M Strings/sec
Data encryption 32.6 GBytes/sec 22.7 GBytes/sec
Data compression 539.1 MBytes/sec 396.2 MBytes/sec
Physics 2631 Frames/sec 2020 Frames/sec
Extended instructions 31.2B Matrices/sec 24.1B Matrices/sec
Sources: PassMark [3], [4] – 6694 & 515 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i9 14900HX +16%
354.31
Core i9 12900HX
305.67

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 32.4 PPW 23.1 PPW
Geekbench 6 Multi / Watt 335.1 PPW 262.9 PPW
Passmark CPU Mark / Watt 794.6 PPW 598.8 PPW
Blender / Watt 6.44 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 i9 14900HX
DateBenchmarkResult
πŸ“˜ 2025-09-22 (GEORGE FORMBY)Cinebench 2024124 / 1417
πŸ“˜ 2025-08-15 (jmtisi)Cinebench 2024111 / 629
πŸ“˜ 2025-06-26 (Ivan)Cinebench 2024125 / 1571
πŸ“˜ 2025-06-14 (JoeG)Cinebench 2024121 / 1334
πŸ“˜ 2025-04-05 (Justin0220)Cinebench 2024125 / 1064
Add View all (13)
Intel Core i9 12900HX
No benchmark results yet
Add

Specifications

Full technical specification of Intel Core i9 14900HX and i9 12900HX

General

Vendor Intel Intel
Released January 9, 2024 May 10, 2022
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Raptor Lake Refresh Alder Lake
Model number i9-14900HX i9-12900HX
Integrated GPU UHD Graphics (32EU) UHD Graphics (32EU)
Rival Equivalent - AMD Ryzen 9 8945HS - AMD Ryzen 9 6900HX
Successor - Intel Core Ultra 9 285HX - Intel Core Ultra 9 285HX
Intel CPU rating (36th and 86th place)

CPU

Performance Cores
P-Cores 8 8
P-Threads 16 16
Base Frequency (P) 2.2 GHz 2.3 GHz
Turbo Boost Frequency (P) 5.8 GHz 5 GHz
Efficient Cores
E-Cores 16 8
E-Threads 16 8
Base Frequency (E) 1.6 GHz 1.7 GHz
Turbo Boost Frequency (E) 4.1 GHz 3.6 GHz
Total
Total Cores 24 16
Total Threads 32 24
Bus Frequency 100 MHz 100 MHz
Multiplier 22x 23x
L1 Cache 80K (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 10 nm 10 nm
TDP (PL1) 45-55 W (configurable) 45-55 W (configurable)
Max. Boost TDP (PL2) 157 W 157 W
Socket BGA-1964 BGA-1964
Peak Temperature 100Β°C 100Β°C
Laptop processors ranking (44th and 108th place)

iGPU

Integrated Graphics Intel UHD Graphics (32EU) Intel UHD Graphics (32EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1650 MHz 1550 MHz
Shading Units 256 256
TMUs 16 16
ROPs 8 8
Execution Units 32 32
TGP 15 W 15 W
iGPU FLOPS
Core i9 14900HX
0.8 TFLOPS
Core i9 12900HX
0.8 TFLOPS
More info: UHD Graphics 770 compared to Graphics Xe (32 EU)

Memory Support

Memory Types - DDR5-5600
- DDR4-3200		 - DDR5-4800
- DDR4-3200
Max. Memory Size 192 GB 128 GB
Memory Channels 2 2
Max. Memory Bandwidth 89.6 GB/s 76.8 GB/s
ECC Support Yes No

Misc

Official Site Intel Core i9 14900HX official page Intel Core i9 12900HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
17 (81%)
4 (19%)
Total votes: 21

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4. Intel Core i9 14900HX vs Intel Core i9 13900HX (2)
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6. Intel Core i9 14900HX vs Apple M3 Max (5)
7. Intel Core i9 14900HX vs AMD Ryzen 9 7945HX (5)
8. Intel Core i9 14900HX vs Intel Core i9 13980HX (3)
9. Intel Core i9 14900HX vs Intel Core Ultra 9 185H (7)
10. Intel Core i9 14900HX vs AMD Ryzen AI 9 HX 370
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Comments

So which CPU will you choose: Intel Core i9 12900HX or i9 14900HX?
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