Home > CPU Comparison > Core i7 1255U or Ryzen 9 5950X: what's better?

Intel Core i7 1255U vs AMD Ryzen 9 5950X

47 out of 100
Intel Core i7 1255U
VS
63 out of 100
AMD Ryzen 9 5950X
Intel Core i7 1255U
AMD Ryzen 9 5950X

We compared two CPUs: the 1.7 GHz Intel Core i7 1255U (laptop) with 10-cores against the 3.4 GHz AMD Ryzen 9 5950X (desktop) 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
The "iGPU" and "Power Efficiency" have a minor impact on the NanoReview Score for desktop CPU.
NanoReview Final Score
Choose your main usage scenario to recalculate the Final Score and see which CPU suits your needs.
πŸ”Œ Usage Scenario:

Value for money (Beta)

Global average CPU prices are used by default! For better accuracy, enter your current prices and click β€œCalculate".
Currency
VS
17.5
(Bad)
Value Index
34.8
(Mediocre)

Key Differences

What are the key differences between 5950X and 1255U
Advantages of Intel Core i7 1255U
  • Newer - released 1 year and 5 months later
  • Includes an integrated GPU Intel Iris Xe Graphics (96EU)
  • 14% faster in a single-core Geekbench v6 test - 2593 vs 2276 points
Advantages of AMD Ryzen 9 5950X
  • Has 52 MB larger L3 cache size, helping fully utilize a high-end GPU in gaming
  • Unlocked multiplier
  • Supports up to 128 GB DDR4-3200 RAM
  • Has 6 more physical cores
  • More modern manufacturing process – 7 versus 10 nanometers
  • 4% higher Turbo Boost frequency (4.9 GHz vs 4.7 GHz)

Test in Benchmarks

Comparing the performance of CPUs across various tasks
CPU:
Core i7 1255U
vs
Ryzen 9 5950X

Cinebench

Reputable cross-platform benchmark for high-performance processors
Cinebench 2024 (Single)
Cinebench 2024 (Multi)
Core i7 1255U
446
Ryzen 9 5950X +228%
1464
Cinebench 2026 (Single) - 464
Cinebench 2026 (Multi) - 5693
Cinebench Scores (#19th 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)
Core i7 1255U +14%
2593
Ryzen 9 5950X
2276
Geekbench 6 (Multi-Core)
Core i7 1255U
8472
Ryzen 9 5950X +50%
12728
File compression 626.4 MB/sec 1120 MB/sec
Clang compilation 49.1 Klines/sec 147.1 Klines/sec
HTML 5 Browser 179.7 pages/sec 224.5 pages/sec
PDF Renderer 201.5 Mpixels/sec 372.1 Mpixels/sec
Text processing 217.7 pages/sec 222.5 pages/sec
Background blur 31.6 images/sec 28.4 images/sec
Photo processing 71.1 images/sec 85 images/sec
Ray tracing 9.8 Mpixels/sec 38.4 Mpixels/sec
Sources: GeekBench [1], [2] – 1162 & 741 samples

PassMark

Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Core i7 1255U
3149
Ryzen 9 5950X +10%
3476
Passmark CPU (Multi-Core)
Core i7 1255U
12978
Ryzen 9 5950X +249%
45260
Integer math 47.7 GOps/sec 183.9 GOps/sec
Floating point math 32.2 GOps/sec 100.5 GOps/sec
Find prime numbers 38M Primes/sec 223M Primes/sec
Random string sorting 16.8M Strings/sec 64.9M Strings/sec
Data encryption 9.1 GBytes/sec 39.4 GBytes/sec
Data compression 145.7 MBytes/sec 622.5 MBytes/sec
Physics 750 Frames/sec 1854 Frames/sec
Extended instructions 8.2B Matrices/sec 40.4B Matrices/sec
Sources: PassMark [3], [4] – 4528 & 19398 samples

Blender

3D rendering test that measures CPU performance in 3D modeling tasks (uses all cores)
Blender CPU
Core i7 1255U
77.28
Ryzen 9 5950X +435%
413.83

Performance Per Watt

Shows the score you get per each watt of PL1 TDP
Cinebench 2024 / Watt 29.7 PPW 13.9 PPW
Geekbench 6 Multi / Watt 564.8 PPW 121.2 PPW
Passmark CPU Mark / Watt 865.2 PPW 431 PPW
Blender / Watt 5.15 PPW 3.94 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 i7 1255U
DateBenchmarkResult
πŸ“˜ 2026-10-08 (dell)Geekbench 7 CPU1840 / 7197
πŸ“˜ 2026-02-13 -> Lello75Geekbench 6 CPU2315 / 7219
πŸ“˜ 2025-04-13 (kapple)Cinebench 202495 / 446
Add View all (3)
AMD Ryzen 9 5950X
DateBenchmarkResult
πŸ“˜ 2026-07-12 (stream pc)Cinebench 2026456 / 4979
πŸ“˜ 2026-06-30 (DDD)Cinebench 2026464 / 5693
πŸ“˜ 2025-12-04 (PhillyBass)Geekbench 6 CPU2259 / 12745
πŸ“˜ 2025-12-04 (PhillyBass)Cinebench 202499 / 1448
πŸ“˜ 2025-10-07 (C0d3M0nk3y)Cinebench 202497 / 1451
Add View all (13)

Specifications

Full technical specification of Intel Core i7 1255U and AMD Ryzen 9 5950X

General

Vendor Intel Amd
Released February 23, 2022 October 8, 2020
Type Laptop Desktop
Instruction Set x86-64 x86-64
Codename Alder Lake Zen 3 (Vermeer)
Model number i7-1255U -
Integrated GPU Iris Xe Graphics (96EU) No
Rival Equivalent - - Intel Core i9 11900K
Successor - Intel Core Ultra 7 255U - AMD Ryzen 9 9950X
Intel CPU rating (#172nd place)
AMD Ryzen CPU ranking (#51st place)

CPU

Performance Cores
P-Cores 2 16
P-Threads 4 32
Base Frequency (P) 1.7 GHz 3.4 GHz
Turbo Boost Frequency (P) 4.7 GHz 4.9 GHz
Efficient Cores
E-Cores 8 -
E-Threads 8 -
Base Frequency (E) 1.2 GHz -
Turbo Boost Frequency (E) 3.5 GHz -
Total
Total Cores 10 16
Total Threads 12 32
Bus Frequency 100 MHz 100 MHz
Multiplier 17x 34x
L1 Cache 80K (per core) 64K (per core)
L2 Cache 1280K (per core) 512K (per core)
L3 Cache 12MB (shared) 64MB (shared)
Unlocked Multiplier No Yes

Package

Transistors - 4.15 billions
Fabrication Process 10 nm 7 nm
TDP (PL1) 12-15 W (configurable) 105 W
Max. Boost TDP (PL2) 55 W 142 W
Socket BGA-1744 AM4
Peak Temperature 100Β°C 95Β°C
Desktop CPU ranking (#72nd place)

iGPU

Integrated Graphics Intel Iris Xe Graphics (96EU) -
GPU Base Clock 300 MHz -
GPU Boost Clock 1250 MHz -
Shading Units 768 -
TMUs 48 -
ROPs 24 -
Execution Units 96 -
TGP 15 W -
iGPU FLOPS
Core i7 1255U
1.9 TFLOPS
Ryzen 9 5950X
n/a
See: Intel Iris Xe Graphics G7 (96EU) benchmarks

Memory Support

Memory Types - DDR5-4800
- DDR4-3200
- LPDDR5-5200
- LPDDR4x-4267		 - DDR4-3200
Max. Memory Size 64 GB 128 GB
Memory Channels 2 2
Max. Memory Bandwidth - 47.68 GB/s
ECC Support No Yes

Misc

Official Site Intel Core i7 1255U official page AMD Ryzen 9 5950X official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

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Comments

So which CPU will you choose: AMD Ryzen 9 5950X or Intel Core i7 1255U?
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