Intel Core i5 6400 vs Intel Core i7 7700T

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We compared two desktop CPUs: Intel Core i5 6400 with 4 cores 2.7GHz and Intel Core i7 7700T with 4 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 7700T 's Advantages

Released 1 years and 4 months late

Higher specification of memory (DDR4-2400 vs DDR4-2133)

Larger memory bandwidth (38.4GB/s vs 34.1GB/s)

Higher base frequency (2.9GHz vs 2.7GHz)

Larger L3 cache size (8MB vs 6MB)

Lower TDP (35W vs 65W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 6400

898

Intel Core i7 7700T +24%

1116

Cinebench R23 Multi Core

Intel Core i5 6400

3214

Intel Core i7 7700T +74%

5605

Geekbench 6 Single Core

Intel Core i5 6400 +7%

1143

Intel Core i7 7700T

1066

Geekbench 6 Multi Core

Intel Core i5 6400 +2%

3312

Intel Core i7 7700T

3226

Blender

Intel Core i5 6400

41

Intel Core i7 7700T +97%

81

Geekbench 5 Single Core

Intel Core i5 6400

853

Intel Core i7 7700T +14%

977

Geekbench 5 Multi Core

Intel Core i5 6400

2805

Intel Core i7 7700T +28%

3611

Passmark CPU Single Core

Intel Core i5 6400

1961

Intel Core i7 7700T +9%

2139

Passmark CPU Multi Core

Intel Core i5 6400

5151

Intel Core i7 7700T +45%

7511

Intel Core i5 6400

VS

Intel Core i7 7700T

General Parameters

Sep 2015

Release Date

Jan 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Kaby Lake

i5-6400

Processor Number

i7-7700T

LGA-1151

Socket

LGA-1151

HD Graphics 530

Integrated Graphics

HD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

65 W

Power Consumption

35 W

-

Peak Operating Temperature

80 °C

CPU Performance

4

Performance Cores

4

Performance Core Threads

8

2.7 GHz

Performance Core Base Frequency

2.9 GHz

3.3 GHz

Performance Core Turbo Frequency

3.8 GHz

4

Total Core Count

4

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

27x

Multiplier

29x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

6 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

-

Memory Parameters

DDR4-2133, DDR3L-1600

Memory Types

DDR4-2400, DDR3L-1600

64 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

34.1 GB/s

Max Memory Bandwidth

38.4 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

950 MHz

GPU Max Dynamic Frequency

1150 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.44 TFLOPS

Miscellaneous

Intel Core i5 6400

Official Website

Intel Core i7 7700T

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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