A9 9420

Description

The A9 9420 is a cpu manufactured by AMD that was released on April 2017. This model has 2 Stoney Ridge cores , runs at 3000 MHz as base frequency and has a a thermal design power of 15 W.

The 9420 has 96+2x32 kB of cache L1, 1024 kB of cache L2 and 0 kB of cache L3.

Specs

Official name

AMD A9-9420 RADEON R5, 5 COMPUTE CORES 2C+3G

CPUID

670f00

Core

Stoney Ridge

Architecture

Excavator

Base frecuency

3 GHz

Boost frecuency

3.6 GHz

Socket

Micro-BGA

Cores/Threads

2/2

TDP

15 W

Cache L1 (d+i)

96+2x32 kB

Cache L2

1024 kB

Cache L3

0 kB

Release date

April 2017

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)

2563

3883 (x1.5)

Test#2 (FP)

9967

9260 (x0.9)

Test#3 (Generic, ZIP)

2957

3905 (x1.3)

Test#1 (Memory)

2123

1740 (x0.8)

TOTAL

17610

18788 (x1.1)

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)

8410

11249 (x1.3)

Test#2 (FP)

11476

13686 (x1.2)

Test#3 (Generic, ZIP)

3288

2085 (x0.6)

Test#1 (Memory)

2237

1868 (x0.8)

TOTAL

25410

28888 (x1.1)

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)

7545

9091 (x1.2)

Test#2 (FP)

13905

12251 (x0.9)

Test#3 (Generic, ZIP)

3110

3004 (x1.0)

Test#1 (Memory)

2176

1806 (x0.8)

TOTAL

26736

26151 (x1.0)

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)

11736

18574 (x1.6)

Test#2 (FP)

16049

20107 (x1.3)

Test#3 (Generic, ZIP)

3257

5274 (x1.6)

Test#1 (Memory)

2051

2379 (x1.2)

TOTAL

33092

46335 (x1.4)

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]