Intel Core Ultra 7 255HX vs Intel Core i7 7800X
CPU · Specs Compare
General Parameters
Release Date
Jan 2025
May 2017
Manufacturer
Intel
Intel
Type
Laptop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Skylake
Processor Number
255HX
i7-7800X
Integrated Graphics
Arc Graphics (4-Cores)
N/A
Generation
Ultra 7 (Arrow Lake)
—
Package
Manufacturing Process
3 nm
14 nm
Socket
FCBGA-2114
LGA-2066
Power Consumption
45-55 W
140 W
Max Turbo Power Consumption
160 W
—
Peak Operating Temperature
105 °C
100 °C
Foundry
Intel
—
Package
FC-LGA18V
—
CPU Performance
Performance Cores
8
6
Performance Core Threads
8
12
Performance Core Base Frequency
2.4 GHz
3.5 GHz
Performance Core Turbo Frequency
5.2 GHz
4 GHz
Efficiency Cores
12
—
Efficiency Core Threads
12
—
Efficiency Core Base Frequency
1.8 GHz
—
Efficiency Core Turbo Frequency
4.5 GHz
—
Total Core Count
20
6
Total Thread Count
20
12
Bus Frequency
100 MHz
100 MHz
Multiplier
24
35x
L1 Cache
112 K per core
64 K per core
L2 Cache
2 MB per core
1 MB per core
L3 Cache
30 MB shared
8 MB shared
Unlocked Multiplier
Yes
Yes
SMP
1
—
Memory Parameters
Memory Types
DDR5-6400
DDR4-2400
Max Memory Size
192 GB
128 GB
Max Memory Channels
2
4
Max Memory Bandwidth
102.4 GB/s
79.47 GB/s
ECC Memory Support
Yes
No
Graphics Card Parameters
Integrated Graphics
true
—
GPU Base Frequency
300 MHz
—
GPU Max Dynamic Frequency
1850 MHz
—
Shader Units
512
—
Texture Units
32
—
Raster Operation Units
16
—
Execution Units
64
—
Power Consumption
14
—
Miscellaneous
PCIe Version
5.0
3.0
PCIe Lanes
24
28
Extended Instruction Set
—
SSE4.1, SSE4.2, AVX-2, AVX-512
Benchmark
Cinebench R23
2,030
963
Cinebench R23
25,611
7,269
Geekbench 6
3,102
1,362
Geekbench 6
15,879
6,082
Cinebench 2024
132
—
Cinebench 2024
1,590
—
Passmark CPU
—
2,409
Passmark CPU
—
12,894
▲ Specs Compare
Data sourced from official specifications and benchmark tests.