Intel Core Ultra 7 255H vs AMD Ryzen 5 PRO 8645HS
We compared two laptop CPUs: Intel Core Ultra 7 255H with 16 cores 2.0GHz and AMD Ryzen 5 PRO 8645HS with 6 cores 4.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core Ultra 7 255H 's Advantages
Released 9 months late
Higher specification of memory (8400 vs 7500)
Newer PCIe version (5.0 vs 4)
Larger L3 cache size (24MB vs 16MB)
More modern manufacturing process (3nm vs 4nm)
Lower TDP (28W vs 54W)
AMD Ryzen 5 PRO 8645HS 's Advantages
Higher base frequency (4.3GHz vs 2.0GHz)
Score
Benchmark
Geekbench 6 Single Core
Intel Core Ultra 7 255H
+13%
2823
AMD Ryzen 5 PRO 8645HS
2478
Geekbench 6 Multi Core
Intel Core Ultra 7 255H
+51%
15662
AMD Ryzen 5 PRO 8645HS
10306
Cinebench 2024 Single Core
Intel Core Ultra 7 255H
+16%
115
AMD Ryzen 5 PRO 8645HS
99
Cinebench 2024 Multi Core
Intel Core Ultra 7 255H
+57%
1102
AMD Ryzen 5 PRO 8645HS
701
General Parameters
Jan 2025
Release Date
Apr 2024
Intel
Manufacturer
AMD
Laptop
Type
Laptop
x86-64
Instruction Set
-
Arrow Lake
Core Architecture
Hawk Point
255H
Processor Number
-
FCBGA-2049
Socket
AMD Socket FP7
Arc Graphics 140T
Integrated Graphics
Radeon 760M
-
Generation
Ryzen 5 (Zen 4 (Hawk Point))
Package
-
Transistor Count
25 billions
3 nm
Manufacturing Process
4 nm
20-28 W
Power Consumption
35-54 W
115 W
Max Turbo Power Consumption
-
110 °C
Peak Operating Temperature
-
-
Foundry
TSMC
-
Die Size
178 mm²
CPU Performance
6
Performance Cores
6
6
Performance Core Threads
12
2.0 GHz
Performance Core Base Frequency
4.3 GHz
5.1 GHz
Performance Core Turbo Frequency
5 GHz
10
Efficiency Cores
-
10
Efficiency Core Threads
-
1.5 GHz
Efficiency Core Base Frequency
-
4.4 GHz
Efficiency Core Turbo Frequency
-
16
Total Core Count
6
16
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
20
Multiplier
43.0
112 K per core
L1 Cache
64 KB per core
2 MB per core
L2 Cache
6 MB
24 MB shared
L3 Cache
16 MB
No
Unlocked Multiplier
No
-
SMP
1
Memory Parameters
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
Memory Types
DDR5-5600,LPDDR5x-7500
128 GB
Max Memory Size
256 GB
2
Max Memory Channels
2
-
Max Memory Bandwidth
89.6 GB/s
No
ECC Memory Support
Yes
Graphics Card Parameters
true
Integrated Graphics
true
2250 MHz
GPU Max Dynamic Frequency
2600 MHz
-
Execution Units
8
AI Accelerator
-
NPU
AMD Ryzen™ AI
-
Theoretical performance
16 TOPS
