Intel Core Ultra 7 251HX vs Intel Core i7 6700
CPU Specs Compare
General Parameters
Release Date
Apr 2026
Sep 2015
Manufacturer
Intel
Intel
Type
Laptop
Desktop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Skylake
Processor Number
251HX
i7-6700
Integrated Graphics
Arc Graphics (4-Cores)
HD Graphics 530
Package
Manufacturing Process
3 nm
14 nm
Socket
FCBGA-2114
LGA-1151
Power Consumption
45-55 W
65 W
Max Turbo Power Consumption
160 W
-
Peak Operating Temperature
105 °C
-
CPU Performance
Performance Cores
6
4
Performance Core Threads
6
8
Performance Core Base Frequency
2.9 GHz
3.4 GHz
Performance Core Turbo Frequency
5.1 GHz
4 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
4
Total Thread Count
18
8
Bus Frequency
100 MHz
100 MHz
Multiplier
29
34
L1 Cache
192 K per core
64 K per core
L2 Cache
2 MB per core
256 K per core
L3 Cache
30 MB shared
8 MB shared
Unlocked Multiplier
Yes
No
Memory Parameters
Memory Types
DDR5-6400
DDR4-2133,DDR3L-1600
Max Memory Size
256 GB
64 GB
Max Memory Channels
2
2
Max Memory Bandwidth
102.4 GB/s
34.1 GB/s
ECC Memory Support
No
No
Graphics Card Parameters
Integrated Graphics
true
true
GPU Base Frequency
300 MHz
-
GPU Max Dynamic Frequency
1800 MHz
1150 MHz
Shader Units
512
-
Texture Units
32
-
Raster Operation Units
16
-
Execution Units
64
-
Power Consumption
14
-
Miscellaneous
📊 Benchmark
Geekbench 6
2,940
1,388
Geekbench 6
15,262
4,622
Cinebench 2024
130
-
Cinebench 2024
1,761
-
Cinebench R23
-
1,063
Cinebench R23
-
4,841
Geekbench 5
-
1,002
Geekbench 5
-
3,915
Blender
-
88
Passmark CPU
-
2,288
Passmark CPU
-
8,087