Core i3-8145U vs i7-8665U
Description
Both models i3-8145U and i7-8665U are based on Whiskey Lake architecture.
Whiskey Lake is the third 14nm process-refinement and it’s a mobile architecture with a short list of U models.
Using the multithread performance as a reference, the i3-8145U gets a score of 75.1 k points while the i7-8665U gets 123.1 k points.
Summarizing, the i7-8665U is 1.6 times faster than the i3-8145U. To get a proper comparison between both models, take a look to the data shown below.
Whiskey Lake is the third 14nm process-refinement and it’s a mobile architecture with a short list of U models.
Using the multithread performance as a reference, the i3-8145U gets a score of 75.1 k points while the i7-8665U gets 123.1 k points.
Summarizing, the i7-8665U is 1.6 times faster than the i3-8145U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806eb
806ec
Core
Whiskey Lake-U
Whiskey Lake-U
Base frecuency
2.1 GHz
1.9 GHz
Boost frecuency
3.9 GHz
4.8 GHz
Socket
BGA 1528
BGA 1528
Cores/Threads
2/4
4/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
4096 kB
8192 kB
Date
August 2018
April 2019
Mean monothread perf.
34.48k points
41.66k points
Mean multithread perf.
75.13k points
123.09k 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
i3-8145U
i7-8665U
Test#1 (Integers)
17.78k
16.92k (x0.95)
Test#2 (FP)
12.8k
15.41k (x1.2)
Test#3 (Generic, ZIP)
2.61k
3.33k (x1.28)
Test#1 (Memory)
1.3k
6k (x4.63)
TOTAL
34.48k
41.66k (x1.21)
Multithread
i3-8145U
i7-8665U
Test#1 (Integers)
28.06k
53.19k (x1.9)
Test#2 (FP)
34.83k
52.4k (x1.5)
Test#3 (Generic, ZIP)
9.69k
11.67k (x1.2)
Test#1 (Memory)
2.55k
5.83k (x2.28)
TOTAL
75.13k
123.09k (x1.64)
Performance/W
i3-8145U
i7-8665U
Test#1 (Integers)
1870 points/W
3546 points/W
Test#2 (FP)
2322 points/W
3493 points/W
Test#3 (Generic, ZIP)
646 points/W
778 points/W
Test#1 (Memory)
170 points/W
389 points/W
TOTAL
5008 points/W
8206 points/W
Performance/GHz
i3-8145U
i7-8665U
Test#1 (Integers)
4558 points/GHz
3525 points/GHz
Test#2 (FP)
3281 points/GHz
3210 points/GHz
Test#3 (Generic, ZIP)
669 points/GHz
694 points/GHz
Test#1 (Memory)
332 points/GHz
1251 points/GHz
TOTAL
8840 points/GHz
8680 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