Intel Core i7 1255U vs AMD Ryzen 7 5800H

We compared two laptop CPUs: the 1.7 GHz Intel Core i7 1255U with 10-cores against the 3.2 GHz AMD Ryzen 7 5800H with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 5800H and 1255U
Advantages of Intel Core i7 1255U
  • Newer - released 1-year and 2-months later
  • Has 2 more physical cores
  • Newer PCI Express version – 4.0
  • 7% higher Turbo Boost frequency (4.7 GHz vs 4.4 GHz)
  • 12% faster in a single-core Geekbench v5 test - 1629 vs 1454 points
Advantages of AMD Ryzen 7 5800H
  • More modern manufacturing process – 7 versus 10 nanometers
  • Has 4 MB larger L3 cache size

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R23 (Single-Core)
1759
Cinebench R23 (Multi-Core)
12336
Passmark CPU (Single-Core)
3384
Passmark CPU (Multi-Core)
21481
Geekbench 5 (Single-Core)
1631
Geekbench 5 (Multi-Core)
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Specifications

Full technical specification of Intel Core i7 1255U and AMD Ryzen 7 5800H

General

Vendor Intel AMD
Released February 23, 2022 January 12, 2021
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Alder Lake Zen 3 (Cezanne)
Model number i7-1255U -
Integrated GPU Iris Xe Graphics (96EU) Radeon RX Vega 8

CPU

Performance Cores
P-Cores 2 8
P-Threads 4 16
Base Frequency (P) 1.7 GHz 3.2 GHz
Turbo Boost Frequency (P) 4.7 GHz 4.4 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 8
Total Threads 12 16
Bus Frequency 100 MHz 100 MHz
Multiplier 17x 32x
L1 Cache 80K (per core) 64K (per core)
L2 Cache 1280K (per core) 512K (per core)
L3 Cache 12MB (shared) 16MB (shared)
Unlocked Multiplier No No

Package

Fabrication process 10 nm 7 nm
Socket BGA-1744 FP6
TDP 12-15 W (configurable) 35-54 W (configurable)
Max. Boost TDP 55 W -
Peak temperature 100°C 105°C

iGPU

Integrated Graphics Intel Iris Xe Graphics (96EU) Radeon RX Vega 8
GPU Base Clock 300 MHz -
GPU Boost Clock 1250 MHz 2000 MHz
Shading Units 768 512
TMUs 48 32
ROPs 24 8
Execution Units 96 -
TGP 15 W 15 W
iGPU FLOPS
1.69 TFLOPS

Memory Support

Memory types DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267 DDR4-3200, LPDDR4-4266
Memory Size 64 GB 64 GB
Max. Memory Channels 2 2
Max. Memory Bandwidth - 68.27 GB/s
ECC Support No Yes

Misc

Official site Intel Core i7 1255U official page AMD Ryzen 7 5800H official page
PCI Express Version 4.0 3.0
PCI Express Lanes 20 16

Cast your vote

Choose between two processors
42 (41.6%)
59 (58.4%)
Total votes: 101

Comments

So which CPU will you choose: AMD Ryzen 7 5800H or Intel Core i7 1255U?