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Core i3-8100 vs i3-1215U


Description
The i3-8100 is based on Coffee Lake architecture while the i3-1215U is based on Alder Lake.

Using the multithread performance as a reference, the i3-8100 gets a score of 200.4 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i3-8100 is 1.1 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906eb
906a4
Core
Coffee Lake-S
Alder Lake-H
Architecture
Base frecuency
3.6 GHz
0.9 GHz
Boost frecuency
3.6 GHz
4.4 GHz
Socket
LGA 1151
BGA 1744
Cores/Threads
4/4
6/8
TDP
65 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
4x256 kB
2x1280+2x2048 kB
Cache L3
6144 kB
10240 kB
Date
October 2017
April 2022
Mean monothread perf.
59.18k points
80.34k points
Mean multithread perf.
200.4k 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
i3-8100
i3-1215U
Test#1 (Integers)
3.72k
6.95k (x1.87)
Test#2 (FP)
15.33k
16.28k (x1.06)
Test#3 (Generic, ZIP)
4.71k
10.49k (x2.23)
Test#1 (Memory)
6.76k
9.95k (x1.47)
TOTAL
30.52k
43.67k (x1.43)

Multithread

i3-8100

i3-1215U
Test#1 (Integers)
14.48k
14.97k (x1.03)
Test#2 (FP)
59.59k
51.01k (x0.86)
Test#3 (Generic, ZIP)
18.07k
30.47k (x1.69)
Test#1 (Memory)
4.3k
8.59k (x2)
TOTAL
96.43k
105.05k (x1.09)

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
i3-8100
i3-1215U
Test#1 (Integers)
13.51k
20.87k (x1.54)
Test#2 (FP)
19.38k
20.74k (x1.07)
Test#3 (Generic, ZIP)
5.06k
11.32k (x2.24)
Test#1 (Memory)
7.87k
8.32k (x1.06)
TOTAL
45.81k
61.26k (x1.34)

Multithread

i3-8100

i3-1215U
Test#1 (Integers)
52.88k
45.12k (x0.85)
Test#2 (FP)
75.92k
60.59k (x0.8)
Test#3 (Generic, ZIP)
19.52k
28.48k (x1.46)
Test#1 (Memory)
4.53k
14.06k (x3.1)
TOTAL
152.86k
148.26k (x0.97)

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
i3-8100
i3-1215U
Test#1 (Integers)
13.52k
15.63k (x1.16)
Test#2 (FP)
20.57k
20.2k (x0.98)
Test#3 (Generic, ZIP)
4.96k
9.94k (x2.01)
Test#1 (Memory)
7.91k
8.06k (x1.02)
TOTAL
46.96k
53.83k (x1.15)

Multithread

i3-8100

i3-1215U
Test#1 (Integers)
53.4k
35.72k (x0.67)
Test#2 (FP)
80.87k
56.41k (x0.7)
Test#3 (Generic, ZIP)
19.03k
25k (x1.31)
Test#1 (Memory)
4.29k
12.48k (x2.91)
TOTAL
157.59k
129.6k (x0.82)

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
i3-8100
i3-1215U
Test#1 (Integers)
24.47k
37.56k (x1.53)
Test#2 (FP)
21.52k
21.13k (x0.98)
Test#3 (Generic, ZIP)
4.95k
11.35k (x2.29)
Test#1 (Memory)
8.24k
10.31k (x1.25)
TOTAL
59.18k
80.34k (x1.36)

Multithread

i3-8100

i3-1215U
Test#1 (Integers)
92.86k
73.97k (x0.8)
Test#2 (FP)
83.05k
72.37k (x0.87)
Test#3 (Generic, ZIP)
18.55k
29.61k (x1.6)
Test#1 (Memory)
5.93k
9.65k (x1.63)
TOTAL
200.4k
185.6k (x0.93)

Performance/W
i3-8100
i3-1215U
Test#1 (Integers)
1429 points/W
4931 points/W
Test#2 (FP)
1278 points/W
4825 points/W
Test#3 (Generic, ZIP)
285 points/W
1974 points/W
Test#1 (Memory)
91 points/W
643 points/W
TOTAL
3083 points/W
12374 points/W

Performance/GHz
i3-8100
i3-1215U
Test#1 (Integers)
6797 points/GHz
8535 points/GHz
Test#2 (FP)
5977 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
1374 points/GHz
2579 points/GHz
Test#1 (Memory)
2290 points/GHz
2343 points/GHz
TOTAL
16438 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