Intel Core i9 13900KS vs Intel Core Ultra 7 251HX
CPU · Specs Compare
General Parameters
Release Date
Jan 2023
Apr 2026
Manufacturer
Intel
Intel
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Raptor Lake
Arrow Lake
Processor Number
i9-13900KS
251HX
Integrated Graphics
UHD Graphics 770
Arc Graphics (4-Cores)
Package
Manufacturing Process
10 nm
3 nm
Socket
LGA-1700
FCBGA-2114
Power Consumption
150 W
45-55 W
Max Turbo Power Consumption
253 W
160 W
Peak Operating Temperature
100°C
105 °C
CPU Performance
Performance Cores
8
6
Performance Core Threads
16
6
Performance Core Base Frequency
3.2 GHz
2.9 GHz
Performance Core Turbo Frequency
6 GHz
5.1 GHz
Efficiency Cores
16
12
Efficiency Core Threads
16
12
Efficiency Core Base Frequency
2.4 GHz
2.5 GHz
Efficiency Core Turbo Frequency
4.3 GHz
4.5 GHz
Total Core Count
24
18
Total Thread Count
32
18
Bus Frequency
100 MHz
100 MHz
Multiplier
32x
29
L1 Cache
80 K per core
192 K per core
L2 Cache
32 MB shared
2 MB per core
L3 Cache
36 MB shared
30 MB shared
Unlocked Multiplier
Yes
Yes
Memory Parameters
Memory Types
DDR5-5600, DDR4-3200
DDR5-6400
Max Memory Size
192 GB
256 GB
Max Memory Channels
2
2
Max Memory Bandwidth
89.6 GB/s
102.4 GB/s
ECC Memory Support
Yes
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
300 MHz
GPU Max Dynamic Frequency
1650 MHz
1800 MHz
Shader Units
256
512
Texture Units
16
32
Raster Operation Units
8
16
Execution Units
32
64
Power Consumption
15 W
14
Miscellaneous
PCIe Version
5.0
5.0
PCIe Lanes
20
24
Benchmark
Cinebench R23
2,317
—
Cinebench R23
40,837
—
Geekbench 6
3,294
2,940
Geekbench 6
22,794
15,262
Cinebench 2024
136
130
Cinebench 2024
2,157
1,761
Blender
559
—
Passmark CPU
4,759
—
Passmark CPU
61,817
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.