Intel Core Ultra X9 378H vs Intel Xeon 674X
CPU Specs Compare
General Parameters
Release Date
Apr 2026
Feb 2026
Manufacturer
Intel
Intel
Type
Laptop
Server
Instruction Set
x86-64
-
Core Architecture
Panther Lake
Granite Rapids
Processor Number
378H
-
Integrated Graphics
Arc B390
N/A
Generation
Ultra X9 (Panther Lake-H)
Xeon 600 (Granite Rapids-WS)
Package
Manufacturing Process
3 nm
5 nm
Socket
Intel BGA 2540
Intel Socket 4710
Power Consumption
25 W
270 W
Max Turbo Power Consumption
80 W
-
Peak Operating Temperature
100°C
99°C
Foundry
Intel
Intel
Package
FC-BGA
FC-LGA18N
Die Size
-
2x598 mm²
I/O Process Size
-
10 nm
I/O Die Size
-
2x 241
CPU Performance
Performance Cores
4
28
Performance Core Threads
8
56
Performance Core Base Frequency
2 GHz
3 GHz
Performance Core Turbo Frequency
5 GHz
4.9 GHz
Efficiency Cores
12
-
Efficiency Core Threads
12
-
Efficiency Core Base Frequency
1600 MHz
-
Efficiency Core Turbo Frequency
3.8 GHz
-
Total Core Count
16
28
Total Thread Count
16
56
Bus Frequency
100 MHz
100 MHz
Multiplier
20.0
30.0
L1 Cache
192 KB per core
112 KB per core
L2 Cache
2.5 MB per core
2 MB per core
L3 Cache
18 MB shared
144 MB shared
Unlocked Multiplier
No
Yes
SMP
1
1
Memory Parameters
Memory Types
LPDDR5X-9600
DDR5-6400
Max Memory Size
96 GB
4 TB
Max Memory Channels
2
8
Max Memory Bandwidth
153.6 GB/s
409.6 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
-
GPU Base Frequency
800 MHz
-
GPU Max Dynamic Frequency
2500 MHz
-
Shader Units
1024
-
Texture Units
64
-
Raster Operation Units
32
-
Execution Units
12
-
Power Consumption
45
-
AI Accelerator
Theoretical performance
50 TOPS
-