Core i7-1255U vs i3-1215U
Description
Both models i7-1255U 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 i7-1255U gets a score of 258.3 k points while the i3-1215U gets 185.6 k points.
Summarizing, the i7-1255U is 1.4 times faster than the i3-1215U. To get a proper comparison between both models, take a look to the data shown below.
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 i7-1255U gets a score of 258.3 k points while the i3-1215U gets 185.6 k points.
Summarizing, the i7-1255U is 1.4 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
Base frecuency
1.7 GHz
0.9 GHz
Boost frecuency
4.7 GHz
4.4 GHz
Socket
BGA 1744
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
2x1280+2x2048 kB
2x1280+2x2048 kB
Cache L3
12288 kB
10240 kB
Date
February 2022
April 2022
Mean monothread perf.
81.73k points
80.34k points
Mean multithread perf.
258.31k points
185.6k points
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
i7-1255U
i3-1215U
Test#1 (Integers)
38.32k
37.56k (x0.98)
Test#2 (FP)
21.35k
21.13k (x0.99)
Test#3 (Generic, ZIP)
11.2k
11.35k (x1.01)
Test#1 (Memory)
10.86k
10.31k (x0.95)
TOTAL
81.73k
80.34k (x0.98)
Multithread
i7-1255U
i3-1215U
Test#1 (Integers)
105.48k
73.97k (x0.7)
Test#2 (FP)
100.18k
72.37k (x0.72)
Test#3 (Generic, ZIP)
43.39k
29.61k (x0.68)
Test#1 (Memory)
9.26k
9.65k (x1.04)
TOTAL
258.31k
185.6k (x0.72)
Performance/W
i7-1255U
i3-1215U
Test#1 (Integers)
7032 points/W
4931 points/W
Test#2 (FP)
6678 points/W
4825 points/W
Test#3 (Generic, ZIP)
2893 points/W
1974 points/W
Test#1 (Memory)
617 points/W
643 points/W
TOTAL
17221 points/W
12374 points/W
Performance/GHz
i7-1255U
i3-1215U
Test#1 (Integers)
8154 points/GHz
8535 points/GHz
Test#2 (FP)
4543 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
2382 points/GHz
2579 points/GHz
Test#1 (Memory)
2311 points/GHz
2343 points/GHz
TOTAL
17390 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4