Intel Core i7 7800X vs Pentium 1403 V2

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We compared two desktop CPUs: Intel Core i7 7800X with 6 cores 3.5GHz and Pentium 1403 V2 with 2 cores 2.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 7800X 's Advantages

Released 3 years and 4 months late

Higher specification of memory (DDR4-2400 vs DDR3-1600)

Higher base frequency (3.5GHz vs 2.6GHz)

Larger L3 cache size (8MB vs 6MB)

More modern manufacturing process (14nm vs 22nm)

Pentium 1403 V2 's Advantages

Newer PCIe version (3 vs 3.0)

Lower TDP (80W vs 140W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i7 7800X +172%

1362

Pentium 1403 V2

499

Geekbench 6 Multi Core

Intel Core i7 7800X +579%

6082

Pentium 1403 V2

895

Geekbench 5 Single Core

Intel Core i7 7800X +89%

1069

Pentium 1403 V2

564

Geekbench 5 Multi Core

Intel Core i7 7800X +529%

6578

Pentium 1403 V2

1045

Intel Core i7 7800X

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Pentium 1403 V2

General Parameters

May 2017

Release Date

Jan 2014

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

-

Skylake

Core Architecture

Ivy Bridge-EN

i7-7800X

Processor Number

-

LGA-2066

Socket

Intel Socket 1356

N/A

Integrated Graphics

N/A

-

Generation

Pentium (Ivy Bridge)

Package

-

Transistor Count

1.008 billions

14 nm

Manufacturing Process

22 nm

LGA-2066

Socket

Intel Socket 1356

140 W

Power Consumption

80 W

100 °C

Peak Operating Temperature

80 °C

-

Foundry

Intel

-

Die Size

133 mm²

-

Package

FC-LGA12A

CPU Performance

6

Performance Cores

-

12

Performance Core Threads

-

3.5 GHz

Performance Core Base Frequency

2.6 GHz

4 GHz

Performance Core Turbo Frequency

0

6

Total Core Count

2

12

Total Thread Count

2

100 MHz

Bus Frequency

100 MHz

35x

Multiplier

26.0

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-2400

Memory Types

DDR3-1600

128 GB

Max Memory Size

-

4

Max Memory Channels

3

79.47 GB/s

Max Memory Bandwidth

-

No

ECC Memory Support

Yes

Miscellaneous

Intel Core i7 7800X

Official Website

-

3.0

PCIe Version

3

28

PCIe Lanes

24

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

Extended Instruction Set

-

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