Intel Core Ultra 7 251HX vs Intel Xeon 656
CPU Specs Compare
General Parameters
Release Date
Apr 2026
Feb 2026
Manufacturer
Intel
Intel
Type
Laptop
Server
Instruction Set
x86-64
-
Core Architecture
Arrow Lake
Granite Rapids
Processor Number
251HX
-
Integrated Graphics
Arc Graphics (4-Cores)
N/A
Generation
-
Xeon 600 (Granite Rapids-WS)
Series
-
Intel Xeon 6 processors
Package
Manufacturing Process
3 nm
5 nm
Socket
FCBGA-2114
Intel Socket 4710
Power Consumption
45-55 W
210 W
Max Turbo Power Consumption
160 W
-
Peak Operating Temperature
105 °C
98°C
Foundry
-
Intel
Die Size
-
2x598 mm²
I/O Process Size
-
10 nm
I/O Die Size
-
2x 241
Package
-
FC-LGA18N
CPU Performance
Performance Cores
6
20
Performance Core Threads
6
40
Performance Core Base Frequency
2.9 GHz
2.9 GHz
Performance Core Turbo Frequency
5.1 GHz
4.8 GHz
Efficiency Cores
12
-
Efficiency Core Threads
12
-
Efficiency Core Base Frequency
2.5 GHz
-
Efficiency Core Turbo Frequency
4.5 GHz
-
Total Core Count
18
20
Total Thread Count
18
40
Bus Frequency
100 MHz
100 MHz
Multiplier
29
29.0
L1 Cache
192 K per core
112 KB per core
L2 Cache
2 MB per core
2 MB per core
L3 Cache
30 MB shared
72 MB shared
Unlocked Multiplier
Yes
Yes
SMP
-
1
Memory Parameters
Memory Types
DDR5-6400
DDR5-6400
Max Memory Size
256 GB
4 TB
Max Memory Channels
2
8
Max Memory Bandwidth
102.4 GB/s
409.6 GB/s
ECC Memory Support
No
Yes
Graphics Card Parameters
Integrated Graphics
true
-
GPU Base Frequency
300 MHz
-
GPU Max Dynamic Frequency
1800 MHz
-
Shader Units
512
-
Texture Units
32
-
Raster Operation Units
16
-
Execution Units
64
-
Power Consumption
14
-
📊 Benchmark
Geekbench 6
2,940
-
Geekbench 6
15,262
-
Cinebench 2024
130
-
Cinebench 2024
1,761
-