Core i7-8665U vs i7-8565U
Description
Both models i7-8665U and i7-8565U 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 i7-8665U gets a score of 109.7 k points while the i7-8565U gets 142.5 k points.
Summarizing, the i7-8565U is 1.3 times faster than the i7-8665U. 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 i7-8665U gets a score of 109.7 k points while the i7-8565U gets 142.5 k points.
Summarizing, the i7-8565U is 1.3 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ec
806eb
Core
Whiskey Lake-U
Whiskey Lake-U
Base frecuency
1.9 GHz
1.8 GHz
Boost frecuency
4.8 GHz
4.6 GHz
Socket
BGA 1528
BGA 1528
Cores/Threads
4/8
4/8
TDP
15 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
April 2019
August 2018
Mean monothread perf.
35.19k points
67.83k points
Mean multithread perf.
109.72k points
142.55k 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
i7-8665U
i7-8565U
Test#1 (Integers)
14.38k
27.2k (x1.89)
Test#2 (FP)
13.43k
23.47k (x1.75)
Test#3 (Generic, ZIP)
2.87k
4.91k (x1.71)
Test#1 (Memory)
4.49k
12.25k (x2.73)
TOTAL
35.19k
67.83k (x1.93)
Multithread
i7-8665U
i7-8565U
Test#1 (Integers)
47.22k
64.33k (x1.36)
Test#2 (FP)
46.99k
58.47k (x1.24)
Test#3 (Generic, ZIP)
10.08k
15.82k (x1.57)
Test#1 (Memory)
5.42k
3.93k (x0.72)
TOTAL
109.72k
142.55k (x1.3)
Performance/W
i7-8665U
i7-8565U
Test#1 (Integers)
3148 points/W
4288 points/W
Test#2 (FP)
3133 points/W
3898 points/W
Test#3 (Generic, ZIP)
672 points/W
1055 points/W
Test#1 (Memory)
361 points/W
262 points/W
TOTAL
7314 points/W
9503 points/W
Performance/GHz
i7-8665U
i7-8565U
Test#1 (Integers)
2996 points/GHz
5914 points/GHz
Test#2 (FP)
2799 points/GHz
5103 points/GHz
Test#3 (Generic, ZIP)
599 points/GHz
1067 points/GHz
Test#1 (Memory)
936 points/GHz
2663 points/GHz
TOTAL
7330 points/GHz
14746 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