Intel Core i9 13900H vs i9 12900HX

We compared two laptop CPUs: the 2.6 GHz Intel Core i9 13900H with 14-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.


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
Generic CPU rating

Key Differences

What are the key differences between 12900HX and 13900H
Advantages of Intel Core i9 13900H
  • Newer - released 8-months later
  • 8% higher Turbo Boost frequency (5.4 GHz vs 5 GHz)
Advantages of Intel Core i9 12900HX
  • Unlocked multiplier
  • Supports up to 128 GB DDR5-4800 RAM
  • Has 6144 KB larger L3 cache size
  • Has 2 more physical cores

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench R23

Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

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 1060 MB/sec 1160 MB/sec
Clang compilation 104.5 Klines/sec 129.9 Klines/sec
HTML 5 Browser 311.8 pages/sec 359.9 pages/sec
PDF Renderer 393.6 Mpixels/sec 420.5 Mpixels/sec
Text processing 253.9 pages/sec 252 pages/sec
Background blur 53.6 images/sec 41.7 images/sec
Photo processing 107.8 images/sec 125 images/sec
Ray tracing 23.5 Mpixels/sec 29.8 Mpixels/sec
Sources: GeekBench [1], [2]


Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 105 GOps/sec 119.2 GOps/sec
Floating point math 75.9 GOps/sec 89.3 GOps/sec
Find prime numbers 115M Primes/sec 139M Primes/sec
Random string sorting 39.3M Strings/sec 47.1M Strings/sec
Data encryption 20.8 GBytes/sec 24.2 GBytes/sec
Data compression 356.8 MBytes/sec 422.6 MBytes/sec
Physics 1891 Frames/sec 2075 Frames/sec
Extended instructions 21.2B Matrices/sec 25.7B Matrices/sec
Sources: PassMark [3], [4]


Full technical specification of Intel Core i9 13900H and i9 12900HX


Vendor Intel Intel
Released January 3, 2023 May 10, 2022
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Raptor Lake Alder Lake
Model number i9-13900H i9-12900HX
Integrated GPU Iris Xe Graphics (96 EU) UHD Graphics (32EU)


Performance Cores
P-Cores 6 8
P-Threads 12 16
Base Frequency (P) 2.6 GHz 2.3 GHz
Turbo Boost Frequency (P) 5.4 GHz 5 GHz
Efficient Cores
E-Cores 8 8
E-Threads 8 8
Base Frequency (E) 1.9 GHz 1.7 GHz
Turbo Boost Frequency (E) 4.1 GHz 3.6 GHz
Total Cores 14 16
Total Threads 20 24
Bus Frequency 100 MHz 100 MHz
Multiplier 26x 23x
L1 Cache 80K (per core) 80K (per core)
L2 Cache 2MB (per core) 1280K (per core)
L3 Cache 24MB (shared) 30MB (shared)
Unlocked Multiplier No Yes


Fabrication process 10 nm 10 nm
TDP (PL1) 35-45 W (configurable) 45-55 W (configurable)
Max. Boost TDP (PL2) 115 W 157 W
Socket BGA-1744 BGA-1964
Peak temperature 100°C 100°C


Integrated Graphics Intel Iris Xe Graphics (96 EU) Intel UHD Graphics (32EU)
GPU Base Clock 300 MHz 300 MHz
GPU Boost Clock 1500 MHz 1550 MHz
Shading Units 768 256
TMUs 48 16
ROPs 24 8
Execution Units 96 32
TGP 15 W 45 W

Memory Support

Memory types - DDR5-5200
- DDR4-3200
- LPDDR5-6400
- LPDDR5x-6400
- LPDDR4x-4267
- DDR5-4800
- DDR4-3200
Memory Size 64 GB 128 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth - 76.8 GB/s
ECC Support No No


Official site Intel Core i9 13900H official page Intel Core i9 12900HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 28 20

Cast your vote

Choose between two processors
7 (50%)
7 (50%)
Total votes: 14


So which CPU will you choose: Intel Core i9 12900HX or i9 13900H?