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Core i7-8650U vs i3-1215U


Description
The i7-8650U is based on Kaby Lake architecture while the i3-1215U is based on Alder Lake.

Using the multithread performance as a reference, the i7-8650U gets a score of 173.5 k points while the i3-1215U gets 185.6 k points.

Summarizing, the i3-1215U is 1.1 times faster than the i7-8650U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
906a4
Core
Kaby Lake-R
Alder Lake-H
Architecture
Base frecuency
1.9 GHz
0.9 GHz
Boost frecuency
4.2 GHz
4.4 GHz
Socket
BGA 1356
BGA 1744
Cores/Threads
4/8
6/8
TDP
15 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32/4x64+2x48/4x32 kB
Cache L2
4x256 kB
2x1280+2x2048 kB
Cache L3
8192 kB
10240 kB
Date
August 2017
April 2022
Mean monothread perf.
55.86k points
80.34k points
Mean multithread perf.
173.49k 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
i7-8650U
i3-1215U
Test#1 (Integers)
21.61k
37.56k (x1.74)
Test#2 (FP)
19.69k
21.13k (x1.07)
Test#3 (Generic, ZIP)
4.61k
11.35k (x2.46)
Test#1 (Memory)
9.95k
10.31k (x1.04)
TOTAL
55.86k
80.34k (x1.44)

Multithread

i7-8650U

i3-1215U
Test#1 (Integers)
78.38k
73.97k (x0.94)
Test#2 (FP)
72.02k
72.37k (x1)
Test#3 (Generic, ZIP)
16.95k
29.61k (x1.75)
Test#1 (Memory)
6.15k
9.65k (x1.57)
TOTAL
173.49k
185.6k (x1.07)

Performance/W
i7-8650U
i3-1215U
Test#1 (Integers)
5225 points/W
4931 points/W
Test#2 (FP)
4802 points/W
4825 points/W
Test#3 (Generic, ZIP)
1130 points/W
1974 points/W
Test#1 (Memory)
410 points/W
643 points/W
TOTAL
11566 points/W
12374 points/W

Performance/GHz
i7-8650U
i3-1215U
Test#1 (Integers)
5146 points/GHz
8535 points/GHz
Test#2 (FP)
4689 points/GHz
4802 points/GHz
Test#3 (Generic, ZIP)
1097 points/GHz
2579 points/GHz
Test#1 (Memory)
2368 points/GHz
2343 points/GHz
TOTAL
13300 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