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Core i3-2120 vs A9 9420


Description
The i3-2120 is based on Sandy Bridge architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the i3-2120 gets a score of 53.5 k points while the 9420 gets 26.2 k points.

Summarizing, the i3-2120 is 2 times faster than the 9420. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
670f00
Core
Sandy Bridge
Stoney Ridge
Architecture
Base frecuency
3.3 GHz
3 GHz
Boost frecuency
3.3 GHz
3.6 GHz
Socket
LGA 1155
Micro-BGA
Cores/Threads
2/2
2/2
TDP
65 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
96+2x32 kB
Cache L2
2x256 kB
1024 kB
Cache L3
3072 kB
0 kB
Date
February 2012
April 2017
Mean monothread perf.
24.23k points
33.09k points
Mean multithread perf.
53.48k points
46.33k points

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
i3-2120
9420
Test#1 (Integers)
2.7k
2.56k (x0.95)
Test#2 (FP)
7.4k
9.97k (x1.35)
Test#3 (Generic, ZIP)
3.82k
2.96k (x0.77)
Test#1 (Memory)
2.99k
2.12k (x0.71)
TOTAL
16.91k
17.61k (x1.04)

Multithread

i3-2120

9420
Test#1 (Integers)
6.36k
3.88k (x0.61)
Test#2 (FP)
16.87k
9.26k (x0.55)
Test#3 (Generic, ZIP)
9.4k
3.9k (x0.42)
Test#1 (Memory)
2.91k
1.74k (x0.6)
TOTAL
35.53k
18.79k (x0.53)

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
i3-2120
9420
Test#1 (Integers)
9.82k
8.41k (x0.86)
Test#2 (FP)
7.9k
11.48k (x1.45)
Test#3 (Generic, ZIP)
3.98k
3.29k (x0.83)
Test#1 (Memory)
2.95k
2.24k (x0.76)
TOTAL
24.64k
25.41k (x1.03)

Multithread

i3-2120

9420
Test#1 (Integers)
20.46k
11.25k (x0.55)
Test#2 (FP)
17.77k
13.69k (x0.77)
Test#3 (Generic, ZIP)
10.03k
2.09k (x0.21)
Test#1 (Memory)
2.94k
1.87k (x0.63)
TOTAL
51.21k
28.89k (x0.56)

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
i3-2120
9420
Test#1 (Integers)
9.07k
7.55k (x0.83)
Test#2 (FP)
8.25k
13.9k (x1.69)
Test#3 (Generic, ZIP)
3.99k
3.11k (x0.78)
Test#1 (Memory)
2.92k
2.18k (x0.74)
TOTAL
24.23k
26.74k (x1.1)

Multithread

i3-2120

9420
Test#1 (Integers)
20.86k
9.09k (x0.44)
Test#2 (FP)
19.51k
12.25k (x0.63)
Test#3 (Generic, ZIP)
10.09k
3k (x0.3)
Test#1 (Memory)
3.03k
1.81k (x0.6)
TOTAL
53.48k
26.15k (x0.49)

Performance/W
i3-2120
9420
Test#1 (Integers)
321 points/W
606 points/W
Test#2 (FP)
300 points/W
817 points/W
Test#3 (Generic, ZIP)
155 points/W
200 points/W
Test#1 (Memory)
47 points/W
120 points/W
TOTAL
823 points/W
1743 points/W

Performance/GHz
i3-2120
9420
Test#1 (Integers)
2748 points/GHz
2096 points/GHz
Test#2 (FP)
2499 points/GHz
3862 points/GHz
Test#3 (Generic, ZIP)
1210 points/GHz
864 points/GHz
Test#1 (Memory)
886 points/GHz
604 points/GHz
TOTAL
7343 points/GHz
7427 points/GHz

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) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


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

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


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

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4