Ryzen 9 3900

Description

The Ryzen 9 3900 is a cpu manufactured by AMD that was released on September 2019. This model has 12 Matisse cores with Simultaneous MultiThreading (SMT), runs at 3100 MHz as base frequency and has a a thermal design power of 65 W.

The 3900 has 12x32+12x32 kB of cache L1, 12x512 kB of cache L2 and 4x16384 kB of cache L3.

Zen 2 is fabricated on the 7nm process from TSMC and it’s the third generation of Zen CPUs. It comes with 64kB of L1 cache and 512kB of L2 cache per core. Zen 2 CPUs are divided into 3 categories: Matisse (desktop), Rome (Server) and Castle Peak (high-end desktop).

Specs

Official name

AMD Ryzen 9 3900 12-Core Processor

CPUID

870f10

Core

Matisse

Architecture

Zen 2

Base frecuency

3.1 GHz

Boost frecuency

4.3 GHz

Socket

AM4

Cores/Threads

12/24

TDP

65 W

Cache L1 (d+i)

12x32+12x32 kB

Cache L2

12x512 kB

Cache L3

4x16384 kB

Release date

September 2019

Non-optimized benchmark

The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs

Monothread

Multithread

Test#1 (Integers)

4388

48447 (x11.0)

Test#2 (FP)

16990

230813 (x13.6)

Test#3 (Generic, ZIP)

7741

122817 (x15.9)

Test#1 (Memory)

24572

54726 (x2.2)

TOTAL

53691

456802 (x8.5)

SSE3 optimized benchmark

The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.

Monothread

Multithread

Test#1 (Integers)

16590

181329 (x10.9)

Test#2 (FP)

24545

261007 (x10.6)

Test#3 (Generic, ZIP)

8545

126625 (x14.8)

Test#1 (Memory)

26285

66639 (x2.5)

TOTAL

75966

635599 (x8.4)

AVX optimized benchmark

The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.

Monothread

Multithread

Test#1 (Integers)

16159

174727 (x10.8)

Test#2 (FP)

23754

275632 (x11.6)

Test#3 (Generic, ZIP)

9320

125649 (x13.5)

Test#1 (Memory)

23170

44172 (x1.9)

TOTAL

72403

620179 (x8.6)

AVX2 optimized benchmark

The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.

Monothread

Multithread

Test#1 (Integers)

16854

229408 (x13.6)

Test#2 (FP)

26031

292810 (x11.2)

Test#3 (Generic, ZIP)

9539

128480 (x13.5)

Test#1 (Memory)

22546

36801 (x1.6)

TOTAL

74970

687500 (x9.2)

Motherboards where this CPU were tested

Model

Chipset

Release date

MSI MPG X570 GAMING PRO CARBON WIFI

AMD X570

ASUS ROG STRIX X570-F GAMING

AMD X570

ASUS TUF GAMING X570-PLUS WI-FI

AMD X570

ASUS ROG CROSSHAIR VIII HERO – WI-FI

AMD X570

Gigabyte X570 GAMING X

AMD X570

MSI MPG B550 GAMING PLUS

AMD B550

MSI B450 TOMAHAWK MAX

AMD B450

Monothread performance graph

Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.

Test#1 (Integers) [% vs time]

Test#2 (FP) [% vs time]

Test#3 (Generic, ZIP) [% vs time]

Test#1 (Memory) [% vs time]

Multithread performance graph

Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.

Test#1 (Integers) [% vs time]