Intel Core Ultra 7 255H AMD Ryzen 7 8745HS
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Intel Core Ultra 7 255H vs AMD Ryzen 7 8745HS

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The Intel Core Ultra 7 255H and AMD Ryzen 7 8745HS are high-end mobile processors for demanding notebook users.

They are aimed at users who need high computing power for productivity, content creation, and gaming on the go. The Intel Core Ultra 7 255H is based on the "Arrow Lake H" architecture, manufactured in 3 nm. It features a hybrid design with many cores/threads, 6 MB L2 and 24 MB L3 cache, and a maximum memory throughput of 134 GB/s.

The AMD Ryzen 7 8745HS uses the "Hawk Point" (Zen 4) architecture from the 4 nm process. It also offers many cores/threads, 8 MB L2 and 16 MB L3 cache, with a maximum memory throughput of 77 GB/s. In single-core and multi-core performance, the Intel Core Ultra 7 255H significantly outperforms the AMD Ryzen 7 8745HS, with a lead of over 10% and 20% respectively.

This indicates a significantly higher overall computing performance from the Intel processor. For gaming without a dedicated GPU, integrated graphics are crucial. The AMD Ryzen 7 8745HS with the AMD Radeon 780M often offers very good performance here. The Intel Core Ultra 7 255H with the Intel Arc 140T delivers solid performance, but is often surpassed by the AMD solution in many cases.

Both H-series and HS-series processors are designed for powerful mobile platforms, which implies higher energy consumption and corresponding thermal design power (TDP). A price-performance evaluation is not possible without specific notebook model information. The Intel Core Ultra 7 255H impresses with 3 nm manufacturing, high memory throughput, and superior single-core and multi-core performance.

The AMD Ryzen 7 8745HS scores with its strong AMD Radeon 780M iGPU and robust Zen 4 architecture. For maximum CPU performance, Intel is preferable. For a balanced system with very good integrated gaming performance, AMD is often the better choice.

Intel Core Ultra 7 255H

  • Modern 3 nm manufacturing
  • Superior single-core and multi-core performance
  • High memory throughput (134 GB/s)
  • Large L3 cache (24 MB)

AMD Ryzen 7 8745HS

  • Strong integrated graphics unit (AMD Radeon 780M)
  • Robust Zen 4 architecture
  • Good balance for gaming and productivity
  • Larger L2 cache (8 MB)

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 1 - 100 %
Intel Core Ultra 7 255H
Rank 2 - 88 %
AMD Ryzen 7 8745HS
Multi-core performance
Rank 1 - 100 %
Intel Core Ultra 7 255H
Rank 2 - 80 %
AMD Ryzen 7 8745HS
Cinebench 2026 Single-Thread

Cinebench 2026 Single-Thread
Single-core performance

Intel Core Ultra 7 255H
16C / 16T · 5.10 GHz
495 pts
AMD Ryzen 7 8745HS
8C / 16T · 4.90 GHz
406 pts
Cinebench 2026 Multi-Core

Cinebench 2026 Multi-Core
Multi-core performance

Intel Core Ultra 7 255H
16C / 16T · 5.10 GHz
2,861 pts
AMD Ryzen 7 8745HS
8C / 16T · 4.90 GHz
3,317 pts
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

Intel Core Ultra 7 255H
16C / 16T · 5.10 GHz
2,761
AMD Ryzen 7 8745HS
8C / 16T · 4.90 GHz
2,417
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Core Ultra 7 255H
16C / 16T · 2.00 GHz
14,339
AMD Ryzen 7 8745HS
8C / 16T · 4.25 GHz
11,542
iGPU - FP32 Performance (Single-precision GFLOPS)

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Core Ultra 7 255H
Intel Arc 140T
5,458
AMD Ryzen 7 8745HS
AMD Radeon 780M
4,045

More benchmarks

At a glance

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
FamilyIntel Core Ultra 7 (31)AMD Ryzen 7 (79)
CPU groupIntel Core Ultra 200H (5)AMD Ryzen 8040 (22)
ArchitectureArrow Lake HHawk Point (Zen 4)
Technology3 nm4 nm
SegmentNotebookNotebook
SocketBGA 2049FP8
PredecessorIntel Core Ultra 7 155HAMD Ryzen 7 7745HX
SuccessorIntel Core Ultra X7 358H

CPU Cores and Base Frequency

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
CPU Cores / Threads16 / 168 / 16
Hyperthreading / SMT
Core architecturehybrid (big.LITTLE)normal
Core Cluster 1: 6x Lion Cove
2.00 - 5.10 GHz
8x Zen 4
3.80 - 4.90 GHz
Core Cluster 2: 8x Skymont
1.50 - 4.40 GHz
Core Cluster 3: 2x Crestmont
0.70 - 2.50 GHz
L2-Cache6.00 MB8.00 MB
L3-Cache24.00 MB16.00 MB
Overclocking

Integrated graphics (iGPU)

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
GPU nameIntel Arc 140TAMD Radeon 780M
GPU frequency0.60 - 2.25 GHz0.80 - 2.60 GHz
CUs / Shader64 / 102412 / 768
Raytracing
Max. displays34
Max. GPU Memory32 GB32 GB
Technology5 nm4 nm
Release dateQ1/2025Q1/2023

NPU AI performance

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
AI hardwareIntel® AI Boost
AI specificationsIntel AI Boost (OpenVINO, WindowsML, DirectML, ONNX RT)
NPU + CPU + iGPU96 TOPS

Memory & PCIe

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
MemoryLPDDR5X-8400 (134.4 GB/s)
DDR5-6400 (102.4 GB/s)
LPDDR5X-7500 (120.0 GB/s)
LPDDR5-6400 (102.4 GB/s)
DDR5-5600 (89.6 GB/s)
DDR5-4800 (76.8 GB/s)
Max. Memory128 GB256 GB
Memory channels22
ECCNoNo
PCIe5.0 x 284.0 x 20
PCIe Bandwidth110.3 GB/s39.4 GB/s

Thermal Management

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
TDP28 W45 W
TDP (PL2)115 W
TDP up54 W
TDP down20 W35 W
T. junction max.110 °C100 °C

Technical details

Wischen
Intel Core Ultra 7 255HAMD Ryzen 7 8745HS
Chip designChipletMonolithic
AES-NI
Operating systemsWindows 11, LinuxWindows 10, Windows 11, Linux
Instruction setx86-64 (64 bit)x86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVX2SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512
Release dateQ1/2025Q1/2024
Release price
DocumentsTechnical data sheet

Your rating

Here you can rate one or both of the processors. The average rating of Intel Core Ultra 7 255H is 3.6 stars (251 ratings), while AMD Ryzen 7 8745HS has received 4.6 stars (67 ratings).

Click on the stars to rate one or both processors.

Intel Core Ultra 7 255H
Intel Core Ultra 7 255H
16C / 16T · 2.00 - 5.10 GHz
AMD Ryzen 7 8745HS
AMD Ryzen 7 8745HS
8C / 16T · 3.80 - 4.90 GHz

Most popular CPUs in both categories

Intel Core Ultra 7 255H
Intel Core Ultra 7 255H
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