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Core i3-1215U vs i5-1235U


Description
Both models i3-1215U and i5-1235U 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 i3-1215U gets a score of 185.6 k points while the i5-1235U gets 297.5 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-H
Alder Lake-U
Architecture
Base frecuency
0.9 GHz
3.3 GHz
Boost frecuency
4.4 GHz
4.4 GHz
Socket
BGA 1744
BGA 1700
Cores/Threads
6/8
10/12
TDP
15 W
15 W
Cache L1 (d+i)
2x32/4x64+2x48/4x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
2x1280+2x2048 kB
1x1280+4x2048 kB
Cache L3
10240 kB
12288 kB
Date
April 2022
April 2022
Mean monothread perf.
80.34k points
81.64k points
Mean multithread perf.
185.6k points
297.46k 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
i3-1215U
i5-1235U
Test#1 (Integers)
6.95k
7.33k (x1.06)
Test#2 (FP)
16.28k
18.27k (x1.12)
Test#3 (Generic, ZIP)
10.49k
12.8k (x1.22)
Test#1 (Memory)
9.95k
13.2k (x1.33)
TOTAL
43.67k
51.61k (x1.18)

Multithread

i3-1215U

i5-1235U
Test#1 (Integers)
14.97k
29.24k (x1.95)
Test#2 (FP)
51.01k
83.32k (x1.63)
Test#3 (Generic, ZIP)
30.47k
54.53k (x1.79)
Test#1 (Memory)
8.59k
4.99k (x0.58)
TOTAL
105.05k
172.07k (x1.64)

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
i3-1215U
i5-1235U
Test#1 (Integers)
20.87k
23.53k (x1.13)
Test#2 (FP)
20.74k
23.51k (x1.13)
Test#3 (Generic, ZIP)
11.32k
14.71k (x1.3)
Test#1 (Memory)
8.32k
13.24k (x1.59)
TOTAL
61.26k
74.99k (x1.22)

Multithread

i3-1215U

i5-1235U
Test#1 (Integers)
45.12k
106.07k (x2.35)
Test#2 (FP)
60.59k
115.88k (x1.91)
Test#3 (Generic, ZIP)
28.48k
60.53k (x2.12)
Test#1 (Memory)
14.06k
5.88k (x0.42)
TOTAL
148.26k
288.36k (x1.95)

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
i3-1215U
i5-1235U
Test#1 (Integers)
15.63k
23.03k (x1.47)
Test#2 (FP)
20.2k
24.11k (x1.19)
Test#3 (Generic, ZIP)
9.94k
13.9k (x1.4)
Test#1 (Memory)
8.06k
12.11k (x1.5)
TOTAL
53.83k
73.15k (x1.36)

Multithread

i3-1215U

i5-1235U
Test#1 (Integers)
35.72k
111.78k (x3.13)
Test#2 (FP)
56.41k
124.18k (x2.2)
Test#3 (Generic, ZIP)
25k
59.87k (x2.39)
Test#1 (Memory)
12.48k
5.76k (x0.46)
TOTAL
129.6k
301.58k (x2.33)

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
i3-1215U
i5-1235U
Test#1 (Integers)
37.56k
36.73k (x0.98)
Test#2 (FP)
21.13k
22.09k (x1.05)
Test#3 (Generic, ZIP)
11.35k
11.24k (x0.99)
Test#1 (Memory)
10.31k
11.58k (x1.12)
TOTAL
80.34k
81.64k (x1.02)

Multithread

i3-1215U

i5-1235U
Test#1 (Integers)
73.97k
130.18k (x1.76)
Test#2 (FP)
72.37k
110.21k (x1.52)
Test#3 (Generic, ZIP)
29.61k
50.76k (x1.71)
Test#1 (Memory)
9.65k
6.31k (x0.65)
TOTAL
185.6k
297.46k (x1.6)

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

Performance/GHz
i3-1215U
i5-1235U
Test#1 (Integers)
8535 points/GHz
8349 points/GHz
Test#2 (FP)
4802 points/GHz
5020 points/GHz
Test#3 (Generic, ZIP)
2579 points/GHz
2555 points/GHz
Test#1 (Memory)
2343 points/GHz
2631 points/GHz
TOTAL
18258 points/GHz
18555 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