Intel Core Ultra X9 388H vs Intel Core i9 10900X
CPU · Specs Compare
General Parameters
Release Date
Jan 2026
Oct 2019
Manufacturer
Intel
Intel
Type
Laptop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Panther Lake
Cascade Lake
Processor Number
388H
i9-10900X
Integrated Graphics
Arc B390
N/A
Generation
Ultra X9 (Panther Lake-H)
—
Package
Manufacturing Process
2 nm
14 nm
Socket
FCBGA2540
LGA-2066
Power Consumption
15-25 W
165 W
Max Turbo Power Consumption
80 W
—
Peak Operating Temperature
100 °C
94 °C
Foundry
Intel
—
Package
FC-BGA
—
CPU Performance
Performance Cores
4
10
Performance Core Threads
4
20
Performance Core Base Frequency
2.1 GHz
3.7 GHz
Performance Core Turbo Frequency
5.1 GHz
4.5 GHz
Efficiency Cores
12
—
Efficiency Core Threads
12
—
Efficiency Core Base Frequency
1.6 GHz
—
Efficiency Core Turbo Frequency
4 GHz
—
Total Core Count
16
10
Total Thread Count
16
20
Bus Frequency
100 MHz
100 MHz
Multiplier
21
37x
L1 Cache
192 K per core
64 K per core
L2 Cache
2560 K per core
1 MB per core
L3 Cache
18 MB shared
20 MB shared
Unlocked Multiplier
No
Yes
SMP
1
—
Memory Parameters
Memory Types
LPDDR5X-9600
DDR4-2933
Max Memory Size
96 GB
256 GB
Max Memory Channels
2
4
Max Memory Bandwidth
153.6 GB/s
93.8 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
—
GPU Base Frequency
300 MHz
—
GPU Max Dynamic Frequency
2500 MHz
—
Shader Units
1536
—
Texture Units
48
—
Raster Operation Units
24
—
Execution Units
12
—
Power Consumption
45
—
AI Accelerator
Theoretical performance
50 TOPS
—
Miscellaneous
PCIe Version
5.0
3.0
PCIe Lanes
12
48
Extended Instruction Set
—
SSE4.1, SSE4.2, AVX-2, AVX-512
Benchmark
Geekbench 6
3,026
1,566
Geekbench 6
17,541
9,308
Cinebench 2024
130
—
Cinebench R23
—
1,145
Cinebench R23
—
14,312
Geekbench 5
—
1,133
Geekbench 5
—
10,786
Passmark CPU
—
2,664
Passmark CPU
—
22,469
▲ Specs Compare
Data sourced from official specifications and benchmark tests.