Intel Atom x7809C Intel Core Ultra 7 255H
VS

Intel Atom x7809C vs Intel Core Ultra 7 255H

Last updated:
The Intel Atom x7809C is based on the Amston Lake architecture and is manufactured using a 10 nm process.

This processor is designed for industrial applications and edge computing, where stability and energy efficiency are more important than pure raw computing power. With a 2 MB Level 2 cache and a 6 MB Level 3 cache, it provides a functional base for simple control tasks. Benchmarks show a significant difference in single-core and multi-core performance compared to more powerful models.

The Intel Atom x7809C is not intended for gaming, as graphical resources are very limited. The thermal design power is set very low, allowing for passive operation. It is recommended for fanless industrial systems where efficiency is crucial. The Intel Core Ultra 7 255H uses the Arrow Lake H architecture and is manufactured in an advanced 3 nm process.

This processor is aimed at users with a high demand for computing capacity for multitasking and complex software. It features a 6 MB Level 2 cache and a 24 MB Level 3 cache to achieve significantly higher results in both single-core and multi-core performance. Thanks to the integrated Intel Arc 140T graphics, the Intel Core Ultra 7 255H is suitable for moderate gaming applications without a dedicated graphics card.

The power consumption is dimensioned higher according to the high performance, which makes active cooling necessary. It is recommended for productive tasks and casual gamers who require a lot of computing power.

Intel Atom x7809C

  • Amston Lake architecture
  • 10 nm manufacturing process
  • Low power consumption
  • Optimized for edge computing

Intel Core Ultra 7 255H

  • Arrow Lake H architecture
  • 3 nm manufacturing process
  • Integrated Intel Arc 140T graphics
  • High multi-core performance

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 2 - 40 %
Intel Atom x7809C
Rank 1 - 100 %
Intel Core Ultra 7 255H
Multi-core performance
Rank 2 - 33 %
Intel Atom x7809C
Rank 1 - 100 %
Intel Core Ultra 7 255H
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

Intel Atom x7809C
8C / 8T · 3.60 GHz
1,102
Intel Core Ultra 7 255H
16C / 16T · 5.10 GHz
2,761
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Atom x7809C
8C / 8T · 2.40 GHz
4,657
Intel Core Ultra 7 255H
16C / 16T · 2.00 GHz
14,339

More benchmarks

At a glance

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
FamilyIntel Atom (108)Intel Core Ultra 7 (31)
CPU groupIntel Atom x7000 AL (7)Intel Core Ultra 200H (5)
ArchitectureAmston LakeArrow Lake H
Technology10 nm3 nm
SegmentNotebookNotebook
SocketBGA 1264BGA 2049
PredecessorIntel Core Ultra 7 155H
SuccessorIntel Core Ultra X7 358H

CPU Cores and Base Frequency

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
CPU Cores / Threads8 / 816 / 16
Hyperthreading / SMT
Core architecturenormalhybrid (big.LITTLE)
Core Cluster 1: 8x
2.40 - 3.60 GHz
6x Lion Cove
2.00 - 5.10 GHz
Core Cluster 2: 8x Skymont
1.50 - 4.40 GHz
Core Cluster 3: 2x Crestmont
0.70 - 2.50 GHz
L2-Cache2.00 MB6.00 MB
L3-Cache6.00 MB24.00 MB
Overclocking

Integrated graphics (iGPU)

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
GPU nameno iGPUIntel Arc 140T
GPU frequency0.60 - 2.25 GHz
CUs / Shader / 64 / 1024
Raytracing
Max. displays3
Max. GPU Memory32 GB
Technology5 nm
Release dateQ1/2025

NPU AI performance

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
AI hardwareIntel® AI Boost
AI specificationsIntel AI Boost (OpenVINO, WindowsML, DirectML, ONNX RT)
NPU + CPU + iGPU96 TOPS

Memory & PCIe

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
MemoryLPDDR5-4800 (38.4 GB/s)
DDR5-4800 (38.4 GB/s)
DDR4-3200 (25.6 GB/s)
LPDDR5X-8400 (134.4 GB/s)
DDR5-6400 (102.4 GB/s)
Max. Memory32 GB128 GB
Memory channels12
ECCNoNo
PCIe3.0 x 95.0 x 28
PCIe Bandwidth8.9 GB/s110.3 GB/s

Thermal Management

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
TDP25 W28 W
TDP (PL2)115 W
TDP up
TDP down20 W
T. junction max.105 °C110 °C

Technical details

Wischen
Intel Atom x7809CIntel Core Ultra 7 255H
Chip designMonolithicChiplet
AES-NI
Operating systemsWindows 11, Linux
Instruction setx86-64 (64 bit)x86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVX2SSE4.1, SSE4.2, AVX2
Release dateQ2/2024Q1/2025
Release price
DocumentsTechnical data sheetTechnical data sheet

Your rating

Here you can rate one or both of the processors. The average rating of Intel Atom x7809C is 2.3 stars (3 ratings), while Intel Core Ultra 7 255H has received 3.6 stars (241 ratings).

Click on the stars to rate one or both processors.

Intel Atom x7809C
Intel Atom x7809C
8C / 8T · 2.40 - 3.60 GHz
Intel Core Ultra 7 255H
Intel Core Ultra 7 255H
16C / 16T · 2.00 - 5.10 GHz

Most popular CPUs in both categories

Intel Atom x7809C
Intel Atom x7809C
Buy now on Amazon and save! Buy on Amazon