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Core i5-1235U vs i3-1215U


Description
Both models i5-1235U 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 i5-1235U gets a score of 297.5 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i5-1235U 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
906a4
906a4
Core
Alder Lake-U
Alder Lake-H
Architecture
Base frecuency
3.3 GHz
0.9 GHz
Boost frecuency
4.4 GHz
4.4 GHz
Socket
BGA 1700
BGA 1744
Cores/Threads
10/12
6/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32/8x64+2x48/8x32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
1x1280+4x2048 kB
2x1280+2x2048 kB
Cache L3
12288 kB
10240 kB
Date
April 2022
April 2022
Mean monothread perf.
81.64k points
80.34k points
Mean multithread perf.
297.46k 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
i5-1235U
i3-1215U
Test#1 (Integers)
7.33k
6.95k (x0.95)
Test#2 (FP)
18.27k
16.28k (x0.89)
Test#3 (Generic, ZIP)
12.8k
10.49k (x0.82)
Test#1 (Memory)
13.2k
9.95k (x0.75)
TOTAL
51.61k
43.67k (x0.85)

Multithread

i5-1235U

i3-1215U
Test#1 (Integers)
29.24k
14.97k (x0.51)
Test#2 (FP)
83.32k
51.01k (x0.61)
Test#3 (Generic, ZIP)
54.53k
30.47k (x0.56)
Test#1 (Memory)
4.99k
8.59k (x1.72)
TOTAL
172.07k
105.05k (x0.61)

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
i5-1235U
i3-1215U
Test#1 (Integers)
23.53k
20.87k (x0.89)
Test#2 (FP)
23.51k
20.74k (x0.88)
Test#3 (Generic, ZIP)
14.71k
11.32k (x0.77)
Test#1 (Memory)
13.24k
8.32k (x0.63)
TOTAL
74.99k
61.26k (x0.82)

Multithread

i5-1235U

i3-1215U
Test#1 (Integers)
106.07k
45.12k (x0.43)
Test#2 (FP)
115.88k
60.59k (x0.52)
Test#3 (Generic, ZIP)
60.53k
28.48k (x0.47)
Test#1 (Memory)
5.88k
14.06k (x2.39)
TOTAL
288.36k
148.26k (x0.51)

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
i5-1235U
i3-1215U
Test#1 (Integers)
23.03k
15.63k (x0.68)
Test#2 (FP)
24.11k
20.2k (x0.84)
Test#3 (Generic, ZIP)
13.9k
9.94k (x0.72)
Test#1 (Memory)
12.11k
8.06k (x0.67)
TOTAL
73.15k
53.83k (x0.74)

Multithread

i5-1235U

i3-1215U
Test#1 (Integers)
111.78k
35.72k (x0.32)
Test#2 (FP)
124.18k
56.41k (x0.45)
Test#3 (Generic, ZIP)
59.87k
25k (x0.42)
Test#1 (Memory)
5.76k
12.48k (x2.17)
TOTAL
301.58k
129.6k (x0.43)

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
i5-1235U
i3-1215U
Test#1 (Integers)
36.73k
37.56k (x1.02)
Test#2 (FP)
22.09k
21.13k (x0.96)
Test#3 (Generic, ZIP)
11.24k
11.35k (x1.01)
Test#1 (Memory)
11.58k
10.31k (x0.89)
TOTAL
81.64k
80.34k (x0.98)

Multithread

i5-1235U

i3-1215U
Test#1 (Integers)
130.18k
73.97k (x0.57)
Test#2 (FP)
110.21k
72.37k (x0.66)
Test#3 (Generic, ZIP)
50.76k
29.61k (x0.58)
Test#1 (Memory)
6.31k
9.65k (x1.53)
TOTAL
297.46k
185.6k (x0.62)

Performance/W
i5-1235U
i3-1215U
Test#1 (Integers)
8679 points/W
4931 points/W
Test#2 (FP)
7348 points/W
4825 points/W
Test#3 (Generic, ZIP)
3384 points/W
1974 points/W
Test#1 (Memory)
421 points/W
643 points/W
TOTAL
19831 points/W
12374 points/W

Performance/GHz
i5-1235U
i3-1215U
Test#1 (Integers)
8349 points/GHz
8535 points/GHz
Test#2 (FP)
5020 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
2555 points/GHz
2579 points/GHz
Test#1 (Memory)
2631 points/GHz
2343 points/GHz
TOTAL
18555 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