Core i3-2120 vs i5-6400
Description
The i3-2120 is based on Sandy Bridge architecture while the i5-6400 is based on Skylake.
Using the multithread performance as a reference, the i3-2120 gets a score of 53.5 k points while the i5-6400 gets 139.6 k points.
Summarizing, the i5-6400 is 2.6 times faster than the i3-2120 . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i3-2120 gets a score of 53.5 k points while the i5-6400 gets 139.6 k points.
Summarizing, the i5-6400 is 2.6 times faster than the i3-2120 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
206a7
506e3
Core
Sandy Bridge
Skylake-S
Base frecuency
3.3 GHz
2.7 GHz
Boost frecuency
3.3 GHz
3.3 GHz
Socket
LGA 1155
LGA 1151
Cores/Threads
2/2
4/4
TDP
65 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
February 2012
September 2015
Mean monothread perf.
24.23k points
48.05k points
Mean multithread perf.
53.48k points
174.05k 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
i5-6400
Test#1 (Integers)
2.7k
3.2k (x1.19)
Test#2 (FP)
7.4k
12.81k (x1.73)
Test#3 (Generic, ZIP)
3.82k
4.18k (x1.09)
Test#1 (Memory)
2.99k
4.3k (x1.44)
TOTAL
16.91k
24.49k (x1.45)
Multithread
i3-2120
i5-6400
Test#1 (Integers)
6.36k
11.45k (x1.8)
Test#2 (FP)
16.87k
46.67k (x2.77)
Test#3 (Generic, ZIP)
9.4k
14.69k (x1.56)
Test#1 (Memory)
2.91k
5.92k (x2.04)
TOTAL
35.53k
78.73k (x2.22)
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
i5-6400
Test#1 (Integers)
9.82k
11.56k (x1.18)
Test#2 (FP)
7.9k
16.53k (x2.09)
Test#3 (Generic, ZIP)
3.98k
4.3k (x1.08)
Test#1 (Memory)
2.95k
3.97k (x1.34)
TOTAL
24.64k
36.36k (x1.48)
Multithread
i3-2120
i5-6400
Test#1 (Integers)
20.46k
43.01k (x2.1)
Test#2 (FP)
17.77k
64.46k (x3.63)
Test#3 (Generic, ZIP)
10.03k
16.14k (x1.61)
Test#1 (Memory)
2.94k
5.91k (x2.01)
TOTAL
51.21k
129.51k (x2.53)
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
i5-6400
Test#1 (Integers)
9.07k
11.82k (x1.3)
Test#2 (FP)
8.25k
18.36k (x2.23)
Test#3 (Generic, ZIP)
3.99k
4.43k (x1.11)
Test#1 (Memory)
2.92k
4.95k (x1.69)
TOTAL
24.23k
39.56k (x1.63)
Multithread
i3-2120
i5-6400
Test#1 (Integers)
20.86k
46.04k (x2.21)
Test#2 (FP)
19.51k
69.47k (x3.56)
Test#3 (Generic, ZIP)
10.09k
16.33k (x1.62)
Test#1 (Memory)
3.03k
7.74k (x2.56)
TOTAL
53.48k
139.58k (x2.61)
Performance/W
i3-2120
i5-6400
Test#1 (Integers)
321 points/W
708 points/W
Test#2 (FP)
300 points/W
1069 points/W
Test#3 (Generic, ZIP)
155 points/W
251 points/W
Test#1 (Memory)
47 points/W
119 points/W
TOTAL
823 points/W
2147 points/W
Performance/GHz
i3-2120
i5-6400
Test#1 (Integers)
2748 points/GHz
3583 points/GHz
Test#2 (FP)
2499 points/GHz
5563 points/GHz
Test#3 (Generic, ZIP)
1210 points/GHz
1341 points/GHz
Test#1 (Memory)
886 points/GHz
1500 points/GHz
TOTAL
7343 points/GHz
11987 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4