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  3. /AMD Ryzen 9 7900X vs Intel Core i7 1255U

AMD Ryzen 9 7900X vs Intel Core i7 1255U

Verdict

Our overall take, at a glance

Key takeaways

  • AMD Ryzen 9 7900X leads Intel Core i7 1255U overall by 33 points (83 vs 50 out of 100).
  • AMD Ryzen 9 7900X stands out on Core Specifications Cores: 12, Core Specifications Threads: 24, Core Specifications Base Frequency: 4.7 GHz.
AMD Ryzen 9 7900X leads overall
$549 at launch
AMD Ryzen 9 7900X
83
Intel Core i7 1255U
50
Why it stands out
  • Core Specifications Cores: 12
  • Core Specifications Threads: 24
  • Core Specifications Base Frequency: 4.7 GHz

In-depth analysisAI

AI-generated from the cited sources — may be incomplete or inaccurate; verify important details before deciding · generated Jun 2026.

AMD Ryzen 9 7900X

AMD Ryzen processors are x86-64 microprocessors based on the Zen microarchitecture. The line includes various product families such as Ryzen 3, Ryzen 5, Ryzen 7, Ryzen 9, and Threadripper (Sources 1). Consumer desktop versions of Ryzen CPUs support Simultaneous Multithreading (SMT) except for some earlier units (Source 1).

Best for General desktop computing
Pros
  • Supports Simultaneous Multithreading (SMT) across many models (Source 1)
  • Ryzen processors include R3, R5, R7, R9, and Threadripper lines (Source 1)
Source
  • List of AMD Ryzen processors - WikipediaCovers an extensive list of AMD Ryzen processors and their architectures.

Generated Jun 27, 2026

Intel Core i7 1255U

The Intel Core i7 1255U is a high-efficiency mobile processor built on 12th generation architecture. It is designed for portable computing needs where optimal power consumption and balanced performance are required. This chip targets users who prioritize battery life and responsive operation in every day use case, such as general productivity or web browsing.

Best for general productivityBest for ultrabooksBest for educational use
Pros
  • It belongs to the Alder Lake U-series family, known for its focus on low power draw efficiency
  • The 12th generation architecture utilizes a hybrid core design pattern for improved efficiency and performance management
  • Its suitability as a mobile component allows it to provide good functionality in thin, battery-powered laptops
Cons
  • As a U-series chip, its peak performance output is constrained compared to higher-power (H or HX) desktop/mobile variants
  • It is intended for mainstream computing tasks and may struggle with sustained, heavy workloads like video rendering or complex compiling.
Source
  • Intel Core - WikipediaSource outlines the tiered architecture of Intel Core processors, including low-power mobile lines like Alder Lake
Video — reviews used (3)

Generated Jun 28, 2026

Value for Money

Which is the better deal for the price

Pre-filled with launch prices where known — enter today's price for an up-to-date check. Use the same currency for both.

AMD Ryzen 9 7900X

Check Price on Amazon

Intel Core i7 1255U

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Performance

Higher benchmark score = faster

AMD Ryzen 9 7900X46,000
Intel Core i7 1255U13,899
See the raw benchmark values →

Benchmark score — a measured indicator of raw performance, not a guarantee of real-world speed.

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Review Videos

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Detailed Specifications

The full spec sheet, side by side

Core Specifications

Feature
AMD Ryzen 9 7900X
Intel Core i7 1255U
Cores
12
10
Threads
24
12
Base Frequency
4.7 GHz
1.2 GHz
Base Power Consumption
120 W
12 W
Maximum Frequency
5.6 GHz
4.7 GHz
Maximum Power Consumption
220 W
55 W
L1 Cache
768 KB
928 KB
L2 Cache
12,288 MB
6.5 MB
L3 Cache
64,000 MB
12 MB
Lithography Process
5 nm
7 nm
Is unlocked
Yes
No

Integrated Graphics

Feature
AMD Ryzen 9 7900X
Intel Core i7 1255U
Model
N/A

Benchmark

Feature
AMD Ryzen 9 7900X
Intel Core i7 1255U
PassMark CPU Mark
46,000
13,899

Specification Note

Specifications are compiled from official manufacturer data and other reliable internet sources. Some features may vary by region or model configuration.

LET'S
COMPARE

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