Intel Core Ultra 7 251HX vs Intel Core i7 6820HQ
CPU · Specs Compare
General Parameters
Release Date
Apr 2026
Sep 2015
Manufacturer
Intel
Intel
Type
Laptop
Laptop
Instruction Set
x86-64
x86-64
Core Architecture
Arrow Lake
Skylake
Processor Number
251HX
i7-6820HQ
Integrated Graphics
Arc Graphics (4-Cores)
HD Graphics 530
Package
Manufacturing Process
3 nm
14 nm
Socket
FCBGA-2114
BGA-1440
Power Consumption
45-55 W
45 W
Max Turbo Power Consumption
160 W
—
Peak Operating Temperature
105 °C
100 °C
CPU Performance
Performance Cores
6
4
Performance Core Threads
6
8
Performance Core Base Frequency
2.9 GHz
2.7 GHz
Performance Core Turbo Frequency
5.1 GHz
3.6 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
—
Multiplier
29
—
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, LPDDR3-1866, 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
1050 MHz
Shader Units
512
—
Texture Units
32
—
Raster Operation Units
16
—
Execution Units
64
—
Power Consumption
14
—
Miscellaneous
PCIe Version
5.0
3.0
PCIe Lanes
24
16
Extended Instruction Set
—
SSE4.1, SSE4.2, AVX-2
Benchmark
Geekbench 6
2,940
—
Geekbench 6
15,262
—
Cinebench 2024
130
—
Cinebench 2024
1,761
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.