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Core i3-1115G4 vs i5-6400


Description
The i3-1115G4 is based on Tiger Lake architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i3-1115G4 gets a score of 138 k points while the i5-6400 gets 174.1 k points.

Summarizing, the i5-6400 is 1.3 times faster than the i3-1115G4. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806c1
506e3
Core
Tiger Lake UP3
Skylake-S
Architecture
Base frecuency
3 GHz
2.7 GHz
Boost frecuency
4.1 GHz
3.3 GHz
Socket
BGA1449
LGA 1151
Cores/Threads
2/4
4/4
TDP
28 W
65 W
Cache L1 (d+i)
2x32+2x48 kB
4x32+4x32 kB
Cache L2
2x1280 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
September 2020
September 2015
Mean monothread perf.
62.19k points
48.05k points
Mean multithread perf.
137.96k 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
i3-1115G4
i5-6400
Test#1 (Integers)
3.75k
3.2k (x0.85)
Test#2 (FP)
17.22k
12.81k (x0.74)
Test#3 (Generic, ZIP)
9.79k
4.18k (x0.43)
Test#1 (Memory)
8.21k
4.3k (x0.52)
TOTAL
38.97k
24.49k (x0.63)

Multithread

i3-1115G4

i5-6400
Test#1 (Integers)
9.19k
11.45k (x1.25)
Test#2 (FP)
35.47k
46.67k (x1.32)
Test#3 (Generic, ZIP)
19.14k
14.69k (x0.77)
Test#1 (Memory)
5.82k
5.92k (x1.02)
TOTAL
69.62k
78.73k (x1.13)

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
i3-1115G4
i5-6400
Test#1 (Integers)
12.9k
11.56k (x0.9)
Test#2 (FP)
21.4k
16.53k (x0.77)
Test#3 (Generic, ZIP)
10.73k
4.3k (x0.4)
Test#1 (Memory)
8.16k
3.97k (x0.49)
TOTAL
53.19k
36.36k (x0.68)

Multithread

i3-1115G4

i5-6400
Test#1 (Integers)
30.31k
43.01k (x1.42)
Test#2 (FP)
45.13k
64.46k (x1.43)
Test#3 (Generic, ZIP)
20.17k
16.14k (x0.8)
Test#1 (Memory)
5.77k
5.91k (x1.02)
TOTAL
101.38k
129.51k (x1.28)

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
i3-1115G4
i5-6400
Test#1 (Integers)
14.65k
11.82k (x0.81)
Test#2 (FP)
21.57k
18.36k (x0.85)
Test#3 (Generic, ZIP)
9.93k
4.43k (x0.45)
Test#1 (Memory)
8.02k
4.95k (x0.62)
TOTAL
54.18k
39.56k (x0.73)

Multithread

i3-1115G4

i5-6400
Test#1 (Integers)
32.14k
46.04k (x1.43)
Test#2 (FP)
43.54k
69.47k (x1.6)
Test#3 (Generic, ZIP)
19.58k
16.33k (x0.83)
Test#1 (Memory)
5.61k
7.74k (x1.38)
TOTAL
100.87k
139.58k (x1.38)

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
i3-1115G4
i5-6400
Test#1 (Integers)
24.25k
21.1k (x0.87)
Test#2 (FP)
21.63k
18.28k (x0.85)
Test#3 (Generic, ZIP)
9.09k
4.22k (x0.46)
Test#1 (Memory)
7.23k
4.45k (x0.61)
TOTAL
62.19k
48.05k (x0.77)

Multithread

i3-1115G4

i5-6400
Test#1 (Integers)
56.9k
80.03k (x1.41)
Test#2 (FP)
55.68k
71.1k (x1.28)
Test#3 (Generic, ZIP)
19.29k
16.19k (x0.84)
Test#1 (Memory)
6.09k
6.73k (x1.11)
TOTAL
137.96k
174.05k (x1.26)

Performance/W
i3-1115G4
i5-6400
Test#1 (Integers)
2032 points/W
1231 points/W
Test#2 (FP)
1989 points/W
1094 points/W
Test#3 (Generic, ZIP)
689 points/W
249 points/W
Test#1 (Memory)
217 points/W
104 points/W
TOTAL
4927 points/W
2678 points/W

Performance/GHz
i3-1115G4
i5-6400
Test#1 (Integers)
5914 points/GHz
6394 points/GHz
Test#2 (FP)
5275 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
2216 points/GHz
1279 points/GHz
Test#1 (Memory)
1764 points/GHz
1348 points/GHz
TOTAL
15169 points/GHz
14560 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