Intel Core i7 1255U vs AMD Ryzen 7 Pro 6850U

We compared two laptop CPUs: the 1.7 GHz Intel Core i7 1255U with 10-cores against the 2.7 GHz AMD Ryzen 7 Pro 6850U with 8-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.


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
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 6850U and 1255U
Advantages of Intel Core i7 1255U
  • Has 2 more physical cores
Advantages of AMD Ryzen 7 Pro 6850U
  • More modern manufacturing process – 6 versus 10 nanometers
  • Has 4096 KB larger L3 cache size

Test in Benchmarks

Comparing the performance of CPUs across various tasks

Cinebench R23

Reputable cross-platform benchmark for high-performance processors
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)

GeekBench v6

The new version of this benchmark emulates common operations often used in real-world apps
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
File compression 513.4 MB/sec 781.7 MB/sec
Clang compilation 36.1 Klines/sec 61.3 Klines/sec
HTML 5 Browser 144.2 pages/sec 175.9 pages/sec
PDF Renderer 152.3 Mpixels/sec 236.1 Mpixels/sec
Text processing 196.7 pages/sec 198.8 pages/sec
Background blur 37.3 images/sec 36.4 images/sec
Photo processing 69.3 images/sec 74.9 images/sec
Ray tracing 11.9 Mpixels/sec 14.9 Mpixels/sec
Sources: GeekBench [1], [2]


Synthetic test that focuses on raw computational performance for low-level functions
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Integer math 51.6 GOps/sec 80.7 GOps/sec
Floating point math 34.2 GOps/sec 43.4 GOps/sec
Find prime numbers 45M Primes/sec 57M Primes/sec
Random string sorting 17.4M Strings/sec 27.3M Strings/sec
Data encryption 9.6 GBytes/sec 16.1 GBytes/sec
Data compression 150.3 MBytes/sec 252.7 MBytes/sec
Physics 860 Frames/sec 998 Frames/sec
Extended instructions 8.4B Matrices/sec 16.2B Matrices/sec
Sources: PassMark [3], [4]


Full technical specification of Intel Core i7 1255U and AMD Ryzen 7 Pro 6850U


Vendor Intel AMD
Released February 23, 2022 April 20, 2022
Type Laptop Laptop
instruction set x86-64 x86-64
Codename Alder Lake Zen 3+ (Rembrandt)
Model number i7-1255U -
Integrated GPU Iris Xe Graphics (96EU) Radeon 680M


Performance Cores
P-Cores 2 8
P-Threads 4 16
Base Frequency (P) 1.7 GHz 2.7 GHz
Turbo Boost Frequency (P) 4.7 GHz 4.7 GHz
Efficient Cores
E-Cores 8 -
E-Threads 8 -
Base Frequency (E) 1.2 GHz -
Turbo Boost Frequency (E) 3.5 GHz -
Total Cores 10 8
Total Threads 12 16
Bus Frequency 100 MHz 100 MHz
Multiplier 17x 27x
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


Fabrication process 10 nm 6 nm
TDP (PL1) 12-15 W (configurable) 15-28 W (configurable)
Max. Boost TDP (PL2) 55 W -
Socket BGA-1744 FP7
Peak temperature 100°C 95°C


Integrated Graphics Intel Iris Xe Graphics (96EU) AMD Radeon 680M
GPU Base Clock 300 MHz 2000 MHz
GPU Boost Clock 1250 MHz 2200 MHz
Shading Units 768 768
TMUs 48 48
ROPs 24 32
Execution Units 96 12
TGP 15 W 15 W
3.686 TFLOPS

Memory Support

Memory types - DDR5-4800
- DDR4-3200
- LPDDR5-5200
- LPDDR4x-4267
- DDR5-4800
- LPDDR5-6400
Memory Size 64 GB 64 GB
Max. Memory Channels 2 2
ECC Support No Yes


Official site Intel Core i7 1255U official page AMD Ryzen 7 Pro 6850U official page
PCI Express Version 4.0 4.0
PCI Express Lanes 20 20

Cast your vote

Choose between two processors
1 (5.3%)
18 (94.7%)
Total votes: 19


So which CPU will you choose: AMD Ryzen 7 Pro 6850U or Intel Core i7 1255U?