Intel Core i5 8279U vs Intel Core Ultra 7 255H
We compared two laptop CPUs: Intel Core i5 8279U with 4 cores 2.4GHz and Intel Core Ultra 7 255H with 16 cores 2.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 8279U 's Advantages
Higher base frequency (2.4GHz vs 2.0GHz)
Intel Core Ultra 7 255H 's Advantages
Released 5 years and 8 months late
Higher specification of memory (8400 vs 2400)
Newer PCIe version (5.0 vs 3.0)
Larger L3 cache size (24MB vs 6MB)
More modern manufacturing process (3nm vs 14nm)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i5 8279U
1085
Intel Core Ultra 7 255H
+87%
2029
Cinebench R23 Multi Core
Intel Core i5 8279U
4440
Intel Core Ultra 7 255H
+362%
20521
Geekbench 6 Single Core
Intel Core i5 8279U
1313
Intel Core Ultra 7 255H
+115%
2823
Geekbench 6 Multi Core
Intel Core i5 8279U
4465
Intel Core Ultra 7 255H
+250%
15662
General Parameters
May 2019
Release Date
Jan 2025
Intel
Manufacturer
Intel
Laptop
Type
Laptop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Arrow Lake
i5-8279U
Processor Number
255H
BGA-1528
Socket
FCBGA-2049
Iris Plus Graphics 655
Integrated Graphics
Arc Graphics 140T
Package
14 nm
Manufacturing Process
3 nm
28 W
Power Consumption
20-28 W
-
Max Turbo Power Consumption
115 W
100 °C
Peak Operating Temperature
110 °C
CPU Performance
4
Performance Cores
6
8
Performance Core Threads
6
2.4 GHz
Performance Core Base Frequency
2.0 GHz
4.1 GHz
Performance Core Turbo Frequency
5.1 GHz
-
Efficiency Cores
10
-
Efficiency Core Threads
10
-
Efficiency Core Base Frequency
1.5 GHz
-
Efficiency Core Turbo Frequency
4.4 GHz
4
Total Core Count
16
8
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
24x
Multiplier
20
32 K per core
L1 Cache
112 K per core
256 K per core
L2 Cache
2 MB per core
6 MB shared
L3 Cache
24 MB shared
No
Unlocked Multiplier
No
Memory Parameters
DDR4-2400, LPDDR3-2133
Memory Types
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
32 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
37.5 GB/s
Max Memory Bandwidth
-
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
300 MHz
GPU Base Frequency
-
1150 MHz
GPU Max Dynamic Frequency
2250 MHz
384
Shader Units
-
48
Texture Units
-
6
Raster Operation Units
-
48
Execution Units
-
15 W
Power Consumption
-
4096x2304 - 60 Hz
Max Resolution
-
0.81 TFLOPS
Graphics Performance
-
Miscellaneous
3.0
PCIe Version
5.0
16
PCIe Lanes
28
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
-
