Home > CPU Comparison > Core Ultra 7 251HX or Ryzen 7 7745HX: what's better?

Intel Core Ultra 7 251HX vs AMD Ryzen 7 7745HX

75 out of 100
Intel Core Ultra 7 251HX
VS
61 out of 100
AMD Ryzen 7 7745HX
Intel Core Ultra 7 251HX
AMD Ryzen 7 7745HX

We compared two laptop CPUs: the 2.9 GHz Intel Core Ultra 7 251HX with 18-cores against the 3.6 GHz AMD Ryzen 7 7745HX with 8-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.
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Key Differences

What are the key differences between 7745HX and 251HX
Advantages of Intel Core Ultra 7 251HX
  • Newer - released 3 years and 3 months later
  • Supports up to 256 GB DDR5-6400 RAM
  • More powerful Arc Graphics (4-Cores) integrated graphics: 1.8 vs 0.6 TFLOPS
  • Has 10 more physical cores
  • More modern manufacturing process – 3 versus 5 nanometers

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core Ultra 7 251HX
vs
Ryzen 7 7745HX

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Cinebench Scores (46th and 138th 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 - 1360 MB/sec
Clang compilation - 118.1 Klines/sec
HTML 5 Browser - 241.9 pages/sec
PDF Renderer - 385.6 Mpixels/sec
Text processing - 284.5 pages/sec
Background blur - 64 images/sec
Photo processing - 88.8 images/sec
Ray tracing - 25.4 Mpixels/sec
Sources: GeekBench [1], [2] – 709 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 122 GOps/sec 104.5 GOps/sec
Floating point math 152.1 GOps/sec 63.7 GOps/sec
Find prime numbers 440M Primes/sec 156M Primes/sec
Random string sorting 61.6M Strings/sec 44.6M Strings/sec
Data encryption 39.2 GBytes/sec 22.7 GBytes/sec
Data compression 512.7 MBytes/sec 378.7 MBytes/sec
Physics 2500 Frames/sec 1688 Frames/sec
Extended instructions 39.9B Matrices/sec 28.6B Matrices/sec
Sources: PassMark [3], [4] – 10 & 422 samples

Blender

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

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 32 PPW 14.2 PPW
Geekbench 6 Multi / Watt 277.8 PPW 182.2 PPW
Passmark CPU Mark / Watt 849.6 PPW 430.9 PPW
Blender / Watt - 3.25 PPW
These are rough calculations, as most CPUs surpass PL1 TDP wattage even in multicore workloads.

Specifications

Full technical specification of Intel Core Ultra 7 251HX and AMD Ryzen 7 7745HX

General

Vendor Intel Amd
Released April 1, 2026 January 4, 2023
Type Laptop Laptop
Instruction Set x86-64 x86-64
Codename Arrow Lake Zen 4 (Dragon Range)
Model number 251HX -
Integrated GPU Arc Graphics (4-Cores) Radeon 610M
Rival Equivalent - - Intel Core i7 13650HX
Intel CPU rating (#27th place)
AMD Ryzen CPU ranking (#63rd place)

CPU

Performance Cores
P-Cores 6 8
P-Threads 6 16
Base Frequency (P) 2.9 GHz 3.6 GHz
Turbo Boost Frequency (P) 5.1 GHz 5.1 GHz
Efficient Cores
E-Cores 12 -
E-Threads 12 -
Base Frequency (E) 2.5 GHz -
Turbo Boost Frequency (E) 4.5 GHz -
Total
Total Cores 18 8
Total Threads 18 16
Bus Frequency 100 MHz 100 MHz
Multiplier 29x 36x
L1 Cache 192K (per core) 64K (per core)
L2 Cache 2MB (per core) 1MB (per core)
L3 Cache 30MB (shared) 32MB (shared)
Unlocked Multiplier Yes Yes

Package

Transistors - 13.1 billions
Fabrication Process 3 nm 5 nm
TDP (PL1) 45-55 W (configurable) 45-75 W (configurable)
Max. Boost TDP (PL2) 160 W -
Socket FCBGA-2114 FL1
Peak Temperature 105°C 100°C
Laptop processors ranking (30th and 93rd place)

iGPU

Integrated Graphics Arc Graphics (4-Cores) Radeon 610M
GPU Base Clock 300 MHz 400 MHz
GPU Boost Clock 1800 MHz 2200 MHz
Shading Units 512 128
TMUs 32 8
ROPs 16 4
Execution Units 64 2
TGP 14 W 15 W
iGPU FLOPS
Core Ultra 7 251HX +200%
1.8 TFLOPS
Ryzen 7 7745HX
0.6 TFLOPS
More info: Radeon 610M compared to Arc iGPU (4-Cores)

Memory Support

Memory Types - DDR5-6400 - DDR5-5200
Max. Memory Size 256 GB 64 GB
Memory Channels 2 2
Max. Memory Bandwidth 102.4 GB/s -
ECC Support No No

Misc

Official Site Intel Core Ultra 7 251HX official page AMD Ryzen 7 7745HX official page
PCI Express Version 5.0 5.0
PCI Express Lanes 24 28

Cast your vote

Choose between two processors
1 (50%)
1 (50%)
Total votes: 2

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6. Intel Core Ultra 7 251HX vs AMD Ryzen 7 H 255
7. Intel Core Ultra 7 251HX vs AMD Ryzen 7 8745HS
8. Intel Core Ultra 7 251HX vs Intel Core Ultra 7 255H
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10. Intel Core Ultra 7 251HX vs Intel Core Ultra 7 255HX
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Comments

So which CPU will you choose: AMD Ryzen 7 7745HX or Intel Core Ultra 7 251HX?
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