AMD Ryzen 9 3900X vs Intel Core i7 6785R

VS

AMD Ryzen 9 3900X

Intel Core i7-6785R

We compared two desktop CPUs: AMD Ryzen 9 3900X with 12 cores 3.8GHz and Intel Core i7 6785R with 4 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 3900X 's Advantages

Released 3 years and 2 months late

Higher specification of memory (3200 vs 2133)

Larger memory bandwidth (47.68GB/s vs 34.1GB/s)

Newer PCIe version (4.0 vs 3)

Higher base frequency (3.8GHz vs 3.3GHz)

Larger L3 cache size (64MB vs 8MB)

More modern manufacturing process (7nm vs 14nm)

Intel Core i7 6785R 's Advantages

Integrated graphics card

Lower TDP (65W vs 105W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 9 3900X +156%

1842

Intel Core i7 6785R

718

Geekbench 6 Multi Core

AMD Ryzen 9 3900X +457%

11715

Intel Core i7 6785R

2101

AMD Ryzen 9 3900X

VS

Intel Core i7 6785R

General Parameters

Jul 2019

Release Date

May 2016

AMD

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

-

Zen 2

Core Architecture

Skylake

AM4

Socket

Intel BGA 1440

N/A

Integrated Graphics

Iris Pro 580

-

Generation

Core i7(Skylake-R)

Package

3.8 billions

Transistor Count

-

7 nm

Manufacturing Process

14 nm

105 W

Power Consumption

65 W

95 °C

Peak Operating Temperature

100°C

-

Foundry

Intel

CPU Performance

12

Performance Cores

4

24

Performance Core Threads

8

3.8 GHz

Performance Core Base Frequency

3.3 GHz

4.6 GHz

Performance Core Turbo Frequency

3.9 GHz

12

Total Core Count

4

24

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

38x

Multiplier

33.0

64 K per core

L1 Cache

64 KB per core

512 K per core

L2 Cache

256 KB per core

64 MB shared

L3 Cache

8 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-3200

Memory Types

DDR3, DDR4-2133

128 GB

Max Memory Size

64

2

Max Memory Channels

2

47.68 GB/s

Max Memory Bandwidth

34.1 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

-

GPU Max Dynamic Frequency

1150 MHz

Miscellaneous

AMD Ryzen 9 3900X

Official Website

Intel Core i7 6785R

4.0

PCIe Version

3

16

PCIe Lanes

16

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