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Core i3-1115G4 vs i5-8400


Description
The i3-1115G4 is based on Tiger Lake architecture while the i5-8400 is based on Coffee Lake.

Using the multithread performance as a reference, the i3-1115G4 gets a score of 138 k points while the i5-8400 gets 289.6 k points.

Summarizing, the i5-8400 is 2.1 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
906ea
Core
Tiger Lake UP3
Coffee Lake-S
Architecture
Base frecuency
3 GHz
2.8 GHz
Boost frecuency
4.1 GHz
4 GHz
Socket
BGA1449
LGA 1151
Cores/Threads
2/4
6/6
TDP
28 W
65 W
Cache L1 (d+i)
2x32+2x48 kB
6x32+6x32 kB
Cache L2
2x1280 kB
6x256 kB
Cache L3
6144 kB
9216 kB
Date
September 2020
September 2017
Mean monothread perf.
62.19k points
64.98k points
Mean multithread perf.
137.96k points
289.61k 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
i5-8400
Test#1 (Integers)
3.75k
4.08k (x1.09)
Test#2 (FP)
17.22k
14.96k (x0.87)
Test#3 (Generic, ZIP)
9.79k
4.98k (x0.51)
Test#1 (Memory)
8.21k
10.29k (x1.25)
TOTAL
38.97k
34.31k (x0.88)

Multithread

i3-1115G4

i5-8400
Test#1 (Integers)
9.19k
21.54k (x2.34)
Test#2 (FP)
35.47k
85.13k (x2.4)
Test#3 (Generic, ZIP)
19.14k
28.24k (x1.48)
Test#1 (Memory)
5.82k
4.08k (x0.7)
TOTAL
69.62k
139k (x2)

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
i5-8400
Test#1 (Integers)
24.25k
26.5k (x1.09)
Test#2 (FP)
21.63k
23.11k (x1.07)
Test#3 (Generic, ZIP)
9.09k
5.2k (x0.57)
Test#1 (Memory)
7.23k
10.16k (x1.4)
TOTAL
62.19k
64.98k (x1.04)

Multithread

i3-1115G4

i5-8400
Test#1 (Integers)
56.9k
135.08k (x2.37)
Test#2 (FP)
55.68k
121.49k (x2.18)
Test#3 (Generic, ZIP)
19.29k
27.53k (x1.43)
Test#1 (Memory)
6.09k
5.5k (x0.9)
TOTAL
137.96k
289.61k (x2.1)

Performance/W
i3-1115G4
i5-8400
Test#1 (Integers)
2032 points/W
2078 points/W
Test#2 (FP)
1989 points/W
1869 points/W
Test#3 (Generic, ZIP)
689 points/W
424 points/W
Test#1 (Memory)
217 points/W
85 points/W
TOTAL
4927 points/W
4455 points/W

Performance/GHz
i3-1115G4
i5-8400
Test#1 (Integers)
5914 points/GHz
6626 points/GHz
Test#2 (FP)
5275 points/GHz
5778 points/GHz
Test#3 (Generic, ZIP)
2216 points/GHz
1300 points/GHz
Test#1 (Memory)
1764 points/GHz
2541 points/GHz
TOTAL
15169 points/GHz
16245 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