Intel Core Ultra 7 255H vs AMD Ryzen 7 7840HS
We compared two laptop CPUs: Intel Core Ultra 7 255H with 16 cores 2.0GHz and AMD Ryzen 7 7840HS with 8 cores 3.8GHz . 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 1 years and 9 months late
Higher specification of memory (8400 vs 7500)
Newer PCIe version (5.0 vs 4.0)
Larger L3 cache size (24MB vs 16MB)
More modern manufacturing process (3nm vs 4nm)
Lower TDP (28W vs 54W)
AMD Ryzen 7 7840HS 's Advantages
Higher base frequency (3.8GHz vs 2.0GHz)
Score
Benchmark
Cinebench R23 Single Core
Intel Core Ultra 7 255H
+14%
2029
AMD Ryzen 7 7840HS
1768
Cinebench R23 Multi Core
Intel Core Ultra 7 255H
+24%
20521
AMD Ryzen 7 7840HS
16477
Geekbench 6 Single Core
Intel Core Ultra 7 255H
+9%
2823
AMD Ryzen 7 7840HS
2575
Geekbench 6 Multi Core
Intel Core Ultra 7 255H
+29%
15662
AMD Ryzen 7 7840HS
12085
Cinebench 2024 Single Core
Intel Core Ultra 7 255H
+12%
115
AMD Ryzen 7 7840HS
102
Cinebench 2024 Multi Core
Intel Core Ultra 7 255H
+27%
1102
AMD Ryzen 7 7840HS
866
General Parameters
Jan 2025
Release Date
Apr 2023
Intel
Manufacturer
Amd
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Arrow Lake
Core Architecture
Zen 4 (Phoenix)
255H
Processor Number
-
FCBGA-2049
Socket
FP8
Arc Graphics 140T
Integrated Graphics
Radeon 780M
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
100 °C
CPU Performance
6
Performance Cores
8
6
Performance Core Threads
16
2.0 GHz
Performance Core Base Frequency
3.8 GHz
5.1 GHz
Performance Core Turbo Frequency
5.1 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
8
16
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
20
Multiplier
38
112 K per core
L1 Cache
64 K per core
2 MB per core
L2 Cache
8 MB
24 MB shared
L3 Cache
16 MB
No
Unlocked Multiplier
No
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
-
GPU Base Frequency
800 MHz
2250 MHz
GPU Max Dynamic Frequency
2700 MHz
-
Shader Units
768
-
Texture Units
48
-
Raster Operation Units
32
-
Execution Units
12
-
Power Consumption
15
-
Max Resolution
7680x4320 - 60 Hz
-
Graphics Performance
4.15 TFLOPS
AI Accelerator
-
NPU
AMD Ryzen™ AI
-
Theoretical performance
10 TOPS
