Intel Core i5 1235U vs Intel Core i7 7820X

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We compared the desktop Intel Core i5 1235U with 10 cores 1.3GHz and the Intel Core i7 7820X with 8 cores 3.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 1235U 's Advantages

Released 4 years and 9 months late

Integrated graphics card

Higher specification of memory (LPDDR5-5200 vs DDR4-2666)

Newer PCIe version (4.0 vs 3.0)

Larger L3 cache size (12MB vs 11MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (15W vs 140W)

Intel Core i7 7820X 's Advantages

Larger memory bandwidth (79.47GB/s vs 76.8GB/s)

Higher base frequency (3.6GHz vs 1.3GHz)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 1235U +23%

1646

Intel Core i7 7820X

1338

Cinebench R23 Multi Core

Intel Core i5 1235U

6655

Intel Core i7 7820X +100%

13358

Geekbench 6 Single Core

Intel Core i5 1235U +69%

2123

Intel Core i7 7820X

1252

Geekbench 6 Multi Core

Intel Core i5 1235U

6631

Intel Core i7 7820X +13%

7510

Geekbench 5 Single Core

Intel Core i5 1235U +40%

1572

Intel Core i7 7820X

1120

Geekbench 5 Multi Core

Intel Core i5 1235U

6255

Intel Core i7 7820X +35%

8504

Passmark CPU Single Core

Intel Core i5 1235U +29%

3279

Intel Core i7 7820X

2536

Passmark CPU Multi Core

Intel Core i5 1235U

13604

Intel Core i7 7820X +26%

17189

Intel Core i5 1235U

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Intel Core i7 7820X

General Parameters

Feb 2022

Release Date

May 2017

Intel

Manufacturer

Intel

Laptop

Type

Desktop

x86-64

Instruction Set

x86-64

Alder Lake-U

Core Architecture

Skylake

i5-1235U

Processor Number

i7-7820X

BGA-1744

Socket

LGA-2066

Iris Xe Graphics (80EU)

Integrated Graphics

N/A

Package

10 nm

Manufacturing Process

14 nm

BGA-1744

Socket

LGA-2066

15 W

Power Consumption

140 W

100 °C

Peak Operating Temperature

99 °C

CPU Performance

2

Performance Cores

8

-

Performance Core Threads

16

1.3 GHz

Performance Core Base Frequency

3.6 GHz

4.4 GHz

Performance Core Turbo Frequency

4.3 GHz

8

Efficiency Cores

-

10

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

13x

Multiplier

36x

80 K per core

L1 Cache

64 K per core

1280 K per core

L2 Cache

1 MB per core

12 MB shared

L3 Cache

11 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

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

Memory Types

DDR4-2666

64 GB

Max Memory Size

128 GB

2

Max Memory Channels

4

76.8 GB/s

Max Memory Bandwidth

79.47 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

300 MHz

GPU Base Frequency

-

1200 MHz

GPU Max Dynamic Frequency

-

640

Shader Units

-

40

Texture Units

-

20

Raster Operation Units

-

80

Execution Units

-

15 W

Power Consumption

-

1.41 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i5 1235U

Official Website

Intel Core i7 7820X

4.0

PCIe Version

3.0

20

PCIe Lanes

28

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2, AVX-512

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