Intel Core Ultra 7 255U vs Intel Core i9 9920X
CPU · Specs Compare
General Parameters
Release Date
Jan 2025
Oct 2018
Manufacturer
Intel
Intel
Type
Laptop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Skylake
Processor Number
255U
i9-9920X
Integrated Graphics
Arc Graphics (4-Cores)
N/A
Package
Manufacturing Process
3 nm
14 nm
Socket
FCBGA-2049
LGA-2066
Power Consumption
12-15 W
165 W
Max Turbo Power Consumption
57 W
—
Peak Operating Temperature
110 °C
92 °C
CPU Performance
Performance Cores
2
12
Performance Core Threads
4
24
Performance Core Base Frequency
2.0 GHz
3.5 GHz
Performance Core Turbo Frequency
5.2 GHz
4.4 GHz
Efficiency Cores
10
—
Efficiency Core Threads
10
—
Efficiency Core Base Frequency
1.7 GHz
—
Efficiency Core Turbo Frequency
4.2 GHz
—
Total Core Count
12
12
Total Thread Count
14
24
Bus Frequency
100 MHz
100 MHz
Multiplier
20
35x
L1 Cache
112 K per core
64 K per core
L2 Cache
2 MB per core
1 MB per core
L3 Cache
12 MB shared
19 MB shared
Unlocked Multiplier
No
Yes
Memory Parameters
Memory Types
LPDDR5-8400,LPDDR5x-8400,DDR5-6400
DDR4-2666
Max Memory Size
128 GB
128 GB
Max Memory Channels
2
4
ECC Memory Support
No
No
Max Memory Bandwidth
—
85 GB/s
Graphics Card Parameters
Integrated Graphics
true
—
GPU Max Dynamic Frequency
2100 MHz
—
Miscellaneous
PCIe Version
4.0
3.0
PCIe Lanes
20
44
Extended Instruction Set
—
SSE4.1, SSE4.2, AVX-2, AVX-512
Benchmark
Cinebench R23
1,803
1,067
Cinebench R23
11,888
14,793
Geekbench 6
2,582
1,389
Geekbench 6
10,941
3,027
Cinebench 2024
101
—
Cinebench 2024
588
—
Geekbench 5
—
1,171
Geekbench 5
—
12,494
Passmark CPU
—
2,608
Passmark CPU
—
25,060
▲ Specs Compare
Data sourced from official specifications and benchmark tests.