Intel Core i7 6820HQ vs Intel Core i7 1255U

VS

Intel Core i7 6820HQ

Intel Core i7 1255U

We compared two laptop CPUs: Intel Core i7 6820HQ with 4 cores 2.7GHz and Intel Core i7 1255U with 10 cores 1.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 6820HQ 's Advantages

Higher base frequency (2.7GHz vs 1.7GHz)

Intel Core i7 1255U 's Advantages

Released 6 years and 5 months late

Higher specification of memory (5200 vs 2133)

Larger memory bandwidth (76.8GB/s vs 34.1GB/s)

Newer PCIe version (4.0 vs 3.0)

Larger L3 cache size (12MB vs 8MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (15W vs 45W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 6820HQ

891

Intel Core i7 1255U +90%

1701

Cinebench R23 Multi Core

Intel Core i7 6820HQ

4287

Intel Core i7 1255U +92%

8233

Geekbench 6 Single Core

Intel Core i7 6820HQ

1037

Intel Core i7 1255U +116%

2248

Geekbench 6 Multi Core

Intel Core i7 6820HQ

3560

Intel Core i7 1255U +101%

7162

Blender

Intel Core i7 6820HQ

75

Intel Core i7 1255U +66%

125

Geekbench 5 Single Core

Intel Core i7 6820HQ

844

Intel Core i7 1255U +92%

1628

Geekbench 5 Multi Core

Intel Core i7 6820HQ

3359

Intel Core i7 1255U +119%

7372

Passmark CPU Single Core

Intel Core i7 6820HQ

1958

Intel Core i7 1255U +68%

3308

Passmark CPU Multi Core

Intel Core i7 6820HQ

6869

Intel Core i7 1255U +100%

13792

Intel Core i7 6820HQ

VS

Intel Core i7 1255U

General Parameters

Sep 2015

Release Date

Feb 2022

Intel

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Alder Lake

i7-6820HQ

Processor Number

i7-1255U

BGA-1440

Socket

BGA-1744

HD Graphics 530

Integrated Graphics

Iris Xe Graphics (96EU)

Package

14 nm

Manufacturing Process

10 nm

45 W

Power Consumption

12-15 W

-

Max Turbo Power Consumption

55 W

100 °C

Peak Operating Temperature

100°C

CPU Performance

4

Performance Cores

2

8

Performance Core Threads

4

2.7 GHz

Performance Core Base Frequency

1.7 GHz

3.6 GHz

Performance Core Turbo Frequency

4.7 GHz

-

Efficiency Cores

8

-

Efficiency Core Threads

8

-

Efficiency Core Base Frequency

1.2 GHz

-

Efficiency Core Turbo Frequency

3.5 GHz

4

Total Core Count

10

8

Total Thread Count

12

-

Bus Frequency

100 MHz

-

Multiplier

17x

64 K per core

L1 Cache

80 K per core

256 K per core

L2 Cache

1280 K per core

8 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR4-2133, LPDDR3-1866, DDR3L-1600

Memory Types

DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267

64 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

34.1 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

1050 MHz

GPU Max Dynamic Frequency

1250 MHz

-

Shader Units

768

-

Texture Units

48

-

Raster Operation Units

24

-

Execution Units

96

-

Power Consumption

15 W

-

Graphics Performance

1.69 TFLOPS

Miscellaneous

Intel Core i7 6820HQ

Official Website

Intel Core i7 1255U

3.0

PCIe Version

4.0

16

PCIe Lanes

20

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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