Home > CPU Comparison > Core i9 13900HX or Ryzen 9 7945HX3D: what's better?

Intel Core i9 13900HX vs AMD Ryzen 9 7945HX3D

68 out of 100
Intel Core i9 13900HX
VS
74 out of 100
AMD Ryzen 9 7945HX3D
Intel Core i9 13900HX
AMD Ryzen 9 7945HX3D

We compared two laptop CPUs: the 2.2 GHz Intel Core i9 13900HX with 24-cores against the 2.3 GHz AMD Ryzen 9 7945HX3D 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 7945HX3D and 13900HX
Advantages of Intel Core i9 13900HX
  • Supports up to 192 GB DDR5-5600 RAM
  • Has 8 more physical cores
  • More powerful Intel UHD Graphics (32EU) integrated graphics: 0.8 vs 0.6 TFLOPS
  • More than 11ยฐ C higher critical temperature
Advantages of AMD Ryzen 9 7945HX3D
  • Has 92 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • More modern manufacturing process โ€“ 5 versus 10 nanometers
  • Newer - released 7 months later

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i9 13900HX
vs
Ryzen 9 7945HX3D

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (49th and 46th 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 1330 MB/sec 1520 MB/sec
Clang compilation 167.1 Klines/sec 178.3 Klines/sec
HTML 5 Browser 411.6 pages/sec 299.6 pages/sec
PDF Renderer 473.4 Mpixels/sec 456.8 Mpixels/sec
Text processing 281.2 pages/sec 288.5 pages/sec
Background blur 54.2 images/sec 60.1 images/sec
Photo processing 129.9 images/sec 104.6 images/sec
Ray tracing 35.7 Mpixels/sec 36.9 Mpixels/sec
Sources: GeekBench [1], [2] โ€“ 1097 & 67 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 151 GOps/sec 202.2 GOps/sec
Floating point math 106.8 GOps/sec 121.8 GOps/sec
Find prime numbers 184M Primes/sec 443M Primes/sec
Random string sorting 57.1M Strings/sec 84.6M Strings/sec
Data encryption 30.9 GBytes/sec 42.6 GBytes/sec
Data compression 511.7 MBytes/sec 704.8 MBytes/sec
Physics 2532 Frames/sec 4366 Frames/sec
Extended instructions 29.4B Matrices/sec 52.4B Matrices/sec
Sources: PassMark [3], [4] โ€“ 4223 & 308 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i9 13900HX
355.81
Ryzen 9 7945HX3D +30%
461.52

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 31.6 PPW 23.6 PPW
Geekbench 6 Multi / Watt 307.6 PPW 225.7 PPW
Passmark CPU Mark / Watt 754.6 PPW 769.7 PPW
Blender / Watt 6.47 PPW 6.15 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 13900HX
DateBenchmarkResult
๐Ÿ“˜ 2025-10-01 (lubby)Cinebench 2024115 / 1737
๐Ÿ“˜ 2025-04-12 (Mos)Cinebench 2024103 / 1014
๐Ÿ“˜ 2024-08-11 (Guest #2)Cinebench 2024117 / 1580
Add View all (3)
AMD Ryzen 9 7945HX3D
No benchmark results yet
Add

Specifications

Full technical specification of Intel Core i9 13900HX and AMD Ryzen 9 7945HX3D

General

Vendor Intel Amd
Released January 3, 2023 August 22, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Raptor Lake Zen 4 (Dragon Range)
Model number i9-13900HX 7945HX3D
Integrated GPU UHD Graphics (32EU) Radeon 610M
Rival Equivalent - AMD Ryzen 9 7845HX - Intel Core i9 13950HX
Successor - Intel Core Ultra 9 285HX - AMD Ryzen 9 9955HX3D
Intel CPU rating (#52nd place)
AMD Ryzen CPU ranking (#23rd place)

CPU

Performance Cores
P-Cores 8 16
P-Threads 16 32
Base Frequency (P) 2.2 GHz 2.3 GHz
Turbo Boost Frequency (P) 5.4 GHz 5.4 GHz
Efficient Cores
E-Cores 16 -
E-Threads 16 -
Base Frequency (E) 1.6 GHz -
Turbo Boost Frequency (E) 3.9 GHz -
Total
Total Cores 24 16
Total Threads 32 32
Bus Frequency 100 MHz 100 MHz
Multiplier 22x 23x
L1 Cache 80K (per core) 64K (per core)
L2 Cache 2MB (per core) 1MB (per core)
L3 Cache 36MB (shared) 128MB (shared)
Unlocked Multiplier Yes Yes

Package

Transistors - 17.8 billions
Fabrication Process 10 nm 5 nm
TDP (PL1) 45-55 W (configurable) 55-75 W (configurable)
Max. Boost TDP (PL2) 157 W -
Socket BGA-1964 FL1
Peak Temperature 100ยฐC 89ยฐC
Laptop processors ranking (63rd and 35th place)

iGPU

Integrated Graphics Intel UHD Graphics (32EU) Radeon 610M
GPU Base Clock 300 MHz 400 MHz
GPU Boost Clock 1650 MHz 2200 MHz
Shading Units 256 128
TMUs 16 8
ROPs 8 4
Execution Units 32 2
TGP 15 W 15 W
iGPU FLOPS
Core i9 13900HX +33%
0.8 TFLOPS
Ryzen 9 7945HX3D
0.6 TFLOPS
More info: Radeon 610M compared to UHD Graphics Xe (32 EU)

Memory Support

Memory Types - DDR5-5600
- DDR4-3200		 - DDR5-5200
Max. Memory Size 192 GB 64 GB
Memory Channels 2 2
Max. Memory Bandwidth 89.6 GB/s -
ECC Support Yes No

Misc

Official Site Intel Core i9 13900HX official page AMD Ryzen 9 7945HX3D official page
PCI Express Version 5.0 5.0
PCI Express Lanes 20 28

Cast your vote

Choose between two processors
10 (33.3%)
20 (66.7%)
Total votes: 30

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6. Intel Core i9 13900HX vs Intel Core i7 14700HX
7. Intel Core i9 13900HX vs AMD Ryzen 9 7945HX (16)
8. Intel Core i9 13900HX vs Intel Core Ultra 9 185H
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Comments

So which CPU will you choose: AMD Ryzen 9 7945HX3D or Intel Core i9 13900HX?
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