Intel Core i9 11900K vs Intel Core Ultra X9 378H
CPU · Specs Compare
General Parameters
Release Date
Mar 2021
Apr 2026
Manufacturer
Intel
Intel
Type
Desktop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Rocket Lake
Panther Lake
Processor Number
i9-11900K
378H
Integrated Graphics
UHD Graphics 750
Arc B390
Generation
—
Ultra X9 (Panther Lake-H)
Package
Manufacturing Process
14 nm
3 nm
Socket
LGA-1200
Intel BGA 2540
Power Consumption
125 W
25 W
Peak Operating Temperature
100°C
100°C
Max Turbo Power Consumption
—
80 W
Foundry
—
Intel
Package
—
FC-BGA
CPU Performance
Performance Cores
8
4
Performance Core Threads
16
8
Performance Core Base Frequency
3.5 GHz
2 GHz
Performance Core Turbo Frequency
5.3 GHz
5 GHz
Total Core Count
8
16
Total Thread Count
16
16
Bus Frequency
100 MHz
100 MHz
Multiplier
35x
20.0
L1 Cache
64 K per core
192 KB per core
L2 Cache
512 K per core
2.5 MB per core
L3 Cache
16 MB shared
18 MB shared
Unlocked Multiplier
Yes
No
Efficiency Cores
—
12
Efficiency Core Threads
—
12
Efficiency Core Base Frequency
—
1600 MHz
Efficiency Core Turbo Frequency
—
3.8 GHz
SMP
—
1
Memory Parameters
Memory Types
DDR4-3200
LPDDR5X-9600
Max Memory Size
128 GB
96 GB
Max Memory Channels
2
2
Max Memory Bandwidth
50 GB/s
153.6 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
800 MHz
GPU Max Dynamic Frequency
1300 MHz
2500 MHz
Shader Units
256
1024
Texture Units
64
64
Raster Operation Units
32
32
Execution Units
32
12
Power Consumption
15 W
45
Max Resolution
3840x2160 - 60 Hz
—
Miscellaneous
PCIe Version
4.0
5
PCIe Lanes
20
4
AI Accelerator
Theoretical performance
—
50 TOPS
Benchmark
Cinebench R23
1,653
—
Cinebench R23
16,211
—
Geekbench 6
2,492
—
Geekbench 5
1,829
—
Geekbench 6
11,197
—
Geekbench 5
11,033
—
Blender
205
—
Passmark CPU
3,520
—
Passmark CPU
25,343
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.