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Core i5-12400 vs i3-1215U


Description
Both models i5-12400 and i3-1215U are based on Alder Lake architecture.

Alder Lake is the 12th generation of Intel Core. It uses the 10nm proccess and was the first to introduce a hybrid architecture with Performance cores and Efficiency cores.

Using the multithread performance as a reference, the i5-12400 gets a score of 544.6 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i5-12400 is 2.9 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
906a4
Core
Arder Lake-S
Alder Lake-H
Architecture
Base frecuency
2.5 GHz
0.9 GHz
Boost frecuency
4.4 GHz
4.4 GHz
Socket
LGA 1700
BGA 1744
Cores/Threads
6/12
6/8
TDP
65 W
15 W
Cache L1 (d+i)
6x32+6x48 kB
2x32/4x64+2x48/4x32 kB
Cache L2
6x1280 kB
2x1280+2x2048 kB
Cache L3
18432 kB
10240 kB
Date
January 2022
April 2022
Mean monothread perf.
102.51k points
80.34k points
Mean multithread perf.
544.64k 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
i5-12400
i3-1215U
Test#1 (Integers)
7.51k
6.95k (x0.93)
Test#2 (FP)
18.66k
16.28k (x0.87)
Test#3 (Generic, ZIP)
13.32k
10.49k (x0.79)
Test#1 (Memory)
14.8k
9.95k (x0.67)
TOTAL
54.29k
43.67k (x0.8)

Multithread

i5-12400

i3-1215U
Test#1 (Integers)
35.52k
14.97k (x0.42)
Test#2 (FP)
138.43k
51.01k (x0.37)
Test#3 (Generic, ZIP)
85.55k
30.47k (x0.36)
Test#1 (Memory)
21.72k
8.59k (x0.4)
TOTAL
281.22k
105.05k (x0.37)

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
i5-12400
i3-1215U
Test#1 (Integers)
24.24k
20.87k (x0.86)
Test#2 (FP)
23.92k
20.74k (x0.87)
Test#3 (Generic, ZIP)
14.43k
11.32k (x0.78)
Test#1 (Memory)
14.84k
8.32k (x0.56)
TOTAL
77.43k
61.26k (x0.79)

Multithread

i5-12400

i3-1215U
Test#1 (Integers)
124.33k
45.12k (x0.36)
Test#2 (FP)
168.8k
60.59k (x0.36)
Test#3 (Generic, ZIP)
100k
28.48k (x0.28)
Test#1 (Memory)
21.2k
14.06k (x0.66)
TOTAL
414.33k
148.26k (x0.36)

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
i5-12400
i3-1215U
Test#1 (Integers)
23.84k
15.63k (x0.66)
Test#2 (FP)
25.09k
20.2k (x0.8)
Test#3 (Generic, ZIP)
14.1k
9.94k (x0.71)
Test#1 (Memory)
14.48k
8.06k (x0.56)
TOTAL
77.51k
53.83k (x0.69)

Multithread

i5-12400

i3-1215U
Test#1 (Integers)
123.98k
35.72k (x0.29)
Test#2 (FP)
176.89k
56.41k (x0.32)
Test#3 (Generic, ZIP)
97.42k
25k (x0.26)
Test#1 (Memory)
20.78k
12.48k (x0.6)
TOTAL
419.07k
129.6k (x0.31)

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
i5-12400
i3-1215U
Test#1 (Integers)
48.08k
37.56k (x0.78)
Test#2 (FP)
25.6k
21.13k (x0.83)
Test#3 (Generic, ZIP)
14.02k
11.35k (x0.81)
Test#1 (Memory)
14.81k
10.31k (x0.7)
TOTAL
102.51k
80.34k (x0.78)

Multithread

i5-12400

i3-1215U
Test#1 (Integers)
230.14k
73.97k (x0.32)
Test#2 (FP)
198.07k
72.37k (x0.37)
Test#3 (Generic, ZIP)
94.78k
29.61k (x0.31)
Test#1 (Memory)
21.64k
9.65k (x0.45)
TOTAL
544.64k
185.6k (x0.34)

Performance/W
i5-12400
i3-1215U
Test#1 (Integers)
3541 points/W
4931 points/W
Test#2 (FP)
3047 points/W
4825 points/W
Test#3 (Generic, ZIP)
1458 points/W
1974 points/W
Test#1 (Memory)
333 points/W
643 points/W
TOTAL
8379 points/W
12374 points/W

Performance/GHz
i5-12400
i3-1215U
Test#1 (Integers)
10927 points/GHz
8535 points/GHz
Test#2 (FP)
5819 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
3186 points/GHz
2579 points/GHz
Test#1 (Memory)
3365 points/GHz
2343 points/GHz
TOTAL
23298 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.


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