Core i5-8400 vs i3-1215U
Description
The i5-8400 is based on Coffee Lake architecture while the i3-1215U is based on Alder Lake.
Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the i3-1215U gets 185.6 k points.
Summarizing, the i5-8400 is 1.6 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the i3-1215U gets 185.6 k points.
Summarizing, the i5-8400 is 1.6 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906a4
Core
Coffee Lake-S
Alder Lake-H
Base frecuency
2.8 GHz
0.9 GHz
Boost frecuency
4 GHz
4.4 GHz
Socket
LGA 1151
BGA 1744
Cores/Threads
6/6
6/8
TDP
65 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
6x256 kB
2x1280+2x2048 kB
Cache L3
9216 kB
10240 kB
Date
September 2017
April 2022
Mean monothread perf.
64.98k points
80.34k points
Mean multithread perf.
289.61k points
185.6k 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
i5-8400
i3-1215U
Test#1 (Integers)
4.08k
6.95k (x1.7)
Test#2 (FP)
14.96k
16.28k (x1.09)
Test#3 (Generic, ZIP)
4.98k
10.49k (x2.11)
Test#1 (Memory)
10.29k
9.95k (x0.97)
TOTAL
34.31k
43.67k (x1.27)
Multithread
i5-8400
i3-1215U
Test#1 (Integers)
21.54k
14.97k (x0.69)
Test#2 (FP)
85.13k
51.01k (x0.6)
Test#3 (Generic, ZIP)
28.24k
30.47k (x1.08)
Test#1 (Memory)
4.08k
8.59k (x2.1)
TOTAL
139k
105.05k (x0.76)
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
i5-8400
i3-1215U
Test#1 (Integers)
26.5k
37.56k (x1.42)
Test#2 (FP)
23.11k
21.13k (x0.91)
Test#3 (Generic, ZIP)
5.2k
11.35k (x2.18)
Test#1 (Memory)
10.16k
10.31k (x1.01)
TOTAL
64.98k
80.34k (x1.24)
Multithread
i5-8400
i3-1215U
Test#1 (Integers)
135.08k
73.97k (x0.55)
Test#2 (FP)
121.49k
72.37k (x0.6)
Test#3 (Generic, ZIP)
27.53k
29.61k (x1.08)
Test#1 (Memory)
5.5k
9.65k (x1.75)
TOTAL
289.61k
185.6k (x0.64)
Performance/W
i5-8400
i3-1215U
Test#1 (Integers)
2078 points/W
4931 points/W
Test#2 (FP)
1869 points/W
4825 points/W
Test#3 (Generic, ZIP)
424 points/W
1974 points/W
Test#1 (Memory)
85 points/W
643 points/W
TOTAL
4455 points/W
12374 points/W
Performance/GHz
i5-8400
i3-1215U
Test#1 (Integers)
6626 points/GHz
8535 points/GHz
Test#2 (FP)
5778 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
1300 points/GHz
2579 points/GHz
Test#1 (Memory)
2541 points/GHz
2343 points/GHz
TOTAL
16245 points/GHz
18258 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