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Core i5-10400T vs i3-1215U


Description
The i5-10400T is based on Comet Lake architecture while the i3-1215U is based on Alder Lake.

Using the multithread performance as a reference, the i5-10400T gets a score of 307.2 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i5-10400T is 1.7 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
906a4
Core
Comet Lake-S
Alder Lake-H
Architecture
Base frecuency
2 GHz
0.9 GHz
Boost frecuency
3.6 GHz
4.4 GHz
Socket
FC-LGA 1200
BGA 1744
Cores/Threads
6/12
6/8
TDP
35 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
6x256 kB
2x1280+2x2048 kB
Cache L3
12288 kB
10240 kB
Date
April 2020
April 2022
Mean monothread perf.
57.85k points
80.34k points
Mean multithread perf.
307.18k 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
i5-10400T
i3-1215U
Test#1 (Integers)
4k
6.95k (x1.73)
Test#2 (FP)
14.19k
16.28k (x1.15)
Test#3 (Generic, ZIP)
4.62k
10.49k (x2.27)
Test#1 (Memory)
11.03k
9.95k (x0.9)
TOTAL
33.84k
43.67k (x1.29)

Multithread

i5-10400T

i3-1215U
Test#1 (Integers)
22.77k
14.97k (x0.66)
Test#2 (FP)
96.59k
51.01k (x0.53)
Test#3 (Generic, ZIP)
31.65k
30.47k (x0.96)
Test#1 (Memory)
2.45k
8.59k (x3.5)
TOTAL
153.46k
105.05k (x0.68)

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
i5-10400T
i3-1215U
Test#1 (Integers)
12.61k
20.87k (x1.65)
Test#2 (FP)
17.94k
20.74k (x1.16)
Test#3 (Generic, ZIP)
4.83k
11.32k (x2.35)
Test#1 (Memory)
10.81k
8.32k (x0.77)
TOTAL
46.19k
61.26k (x1.33)

Multithread

i5-10400T

i3-1215U
Test#1 (Integers)
74.62k
45.12k (x0.6)
Test#2 (FP)
119.63k
60.59k (x0.51)
Test#3 (Generic, ZIP)
32.65k
28.48k (x0.87)
Test#1 (Memory)
2.52k
14.06k (x5.58)
TOTAL
229.42k
148.26k (x0.65)

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
i5-10400T
i3-1215U
Test#1 (Integers)
12.5k
15.63k (x1.25)
Test#2 (FP)
19.05k
20.2k (x1.06)
Test#3 (Generic, ZIP)
4.72k
9.94k (x2.11)
Test#1 (Memory)
10.3k
8.06k (x0.78)
TOTAL
46.57k
53.83k (x1.16)

Multithread

i5-10400T

i3-1215U
Test#1 (Integers)
74.58k
35.72k (x0.48)
Test#2 (FP)
126.96k
56.41k (x0.44)
Test#3 (Generic, ZIP)
31.76k
25k (x0.79)
Test#1 (Memory)
2.5k
12.48k (x5)
TOTAL
235.8k
129.6k (x0.55)

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
i5-10400T
i3-1215U
Test#1 (Integers)
22k
37.56k (x1.71)
Test#2 (FP)
19.98k
21.13k (x1.06)
Test#3 (Generic, ZIP)
4.57k
11.35k (x2.48)
Test#1 (Memory)
11.31k
10.31k (x0.91)
TOTAL
57.85k
80.34k (x1.39)

Multithread

i5-10400T

i3-1215U
Test#1 (Integers)
136.69k
73.97k (x0.54)
Test#2 (FP)
135.25k
72.37k (x0.54)
Test#3 (Generic, ZIP)
32.76k
29.61k (x0.9)
Test#1 (Memory)
2.48k
9.65k (x3.89)
TOTAL
307.18k
185.6k (x0.6)

Performance/W
i5-10400T
i3-1215U
Test#1 (Integers)
3905 points/W
4931 points/W
Test#2 (FP)
3864 points/W
4825 points/W
Test#3 (Generic, ZIP)
936 points/W
1974 points/W
Test#1 (Memory)
71 points/W
643 points/W
TOTAL
8776 points/W
12374 points/W

Performance/GHz
i5-10400T
i3-1215U
Test#1 (Integers)
6111 points/GHz
8535 points/GHz
Test#2 (FP)
5549 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
2579 points/GHz
Test#1 (Memory)
3141 points/GHz
2343 points/GHz
TOTAL
16069 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