| | | | | | |

Core i3-12100T vs i5-8400


Description
The i3-12100T is based on Alder Lake architecture while the i5-8400 is based on Coffee Lake.

Using the multithread performance as a reference, the i3-12100T gets a score of 330.6 k points while the i5-8400 gets 289.6 k points.

Summarizing, the i3-12100T is 1.1 times faster than the i5-8400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90675
906ea
Core
Alder Lake-S
Coffee Lake-S
Architecture
Base frecuency
2.2 GHz
2.8 GHz
Boost frecuency
4.1 GHz
4 GHz
Socket
LGA 1700
LGA 1151
Cores/Threads
4/8
6/6
TDP
35 W
65 W
Cache L1 (d+i)
4x32+4x48 kB
6x32+6x32 kB
Cache L2
4x1280 kB
6x256 kB
Cache L3
12288 kB
9216 kB
Date
January 2022
September 2017
Mean monothread perf.
93.54k points
64.98k points
Mean multithread perf.
330.62k 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
i3-12100T
i5-8400
Test#1 (Integers)
6.88k
4.08k (x0.59)
Test#2 (FP)
17.36k
14.96k (x0.86)
Test#3 (Generic, ZIP)
12.26k
4.98k (x0.41)
Test#1 (Memory)
13.49k
10.29k (x0.76)
TOTAL
49.98k
34.31k (x0.69)

Multithread

i3-12100T

i5-8400
Test#1 (Integers)
22.03k
21.54k (x0.98)
Test#2 (FP)
84.16k
85.13k (x1.01)
Test#3 (Generic, ZIP)
46.49k
28.24k (x0.61)
Test#1 (Memory)
8.96k
4.08k (x0.46)
TOTAL
161.65k
139k (x0.86)

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
i3-12100T
i5-8400
Test#1 (Integers)
43.24k
26.5k (x0.61)
Test#2 (FP)
23.76k
23.11k (x0.97)
Test#3 (Generic, ZIP)
12.67k
5.2k (x0.41)
Test#1 (Memory)
13.88k
10.16k (x0.73)
TOTAL
93.54k
64.98k (x0.69)

Multithread

i3-12100T

i5-8400
Test#1 (Integers)
150.28k
135.08k (x0.9)
Test#2 (FP)
126.29k
121.49k (x0.96)
Test#3 (Generic, ZIP)
45.32k
27.53k (x0.61)
Test#1 (Memory)
8.73k
5.5k (x0.63)
TOTAL
330.62k
289.61k (x0.88)

Performance/W
i3-12100T
i5-8400
Test#1 (Integers)
4294 points/W
2078 points/W
Test#2 (FP)
3608 points/W
1869 points/W
Test#3 (Generic, ZIP)
1295 points/W
424 points/W
Test#1 (Memory)
249 points/W
85 points/W
TOTAL
9446 points/W
4455 points/W

Performance/GHz
i3-12100T
i5-8400
Test#1 (Integers)
10546 points/GHz
6626 points/GHz
Test#2 (FP)
5794 points/GHz
5778 points/GHz
Test#3 (Generic, ZIP)
3089 points/GHz
1300 points/GHz
Test#1 (Memory)
3384 points/GHz
2541 points/GHz
TOTAL
22814 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