Core i7-8665U vs i5-8265U
Description
Both models i7-8665U and i5-8265U 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 i5-8265U gets 149.5 k points.
Summarizing, the i5-8265U is 1.4 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 i5-8265U gets 149.5 k points.
Summarizing, the i5-8265U is 1.4 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
1.6 GHz
Boost frecuency
4.8 GHz
3.9 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
6144 kB
Date
April 2019
August 2018
Mean monothread perf.
35.19k points
57.57k points
Mean multithread perf.
109.72k points
149.48k 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
i5-8265U
Test#1 (Integers)
14.38k
24.32k (x1.69)
Test#2 (FP)
13.43k
20.35k (x1.52)
Test#3 (Generic, ZIP)
2.87k
4.38k (x1.53)
Test#1 (Memory)
4.49k
8.52k (x1.89)
TOTAL
35.19k
57.57k (x1.64)
Multithread
i7-8665U
i5-8265U
Test#1 (Integers)
47.22k
65.17k (x1.38)
Test#2 (FP)
46.99k
63.6k (x1.35)
Test#3 (Generic, ZIP)
10.08k
14.4k (x1.43)
Test#1 (Memory)
5.42k
6.31k (x1.16)
TOTAL
109.72k
149.48k (x1.36)
Performance/W
i7-8665U
i5-8265U
Test#1 (Integers)
3148 points/W
4345 points/W
Test#2 (FP)
3133 points/W
4240 points/W
Test#3 (Generic, ZIP)
672 points/W
960 points/W
Test#1 (Memory)
361 points/W
421 points/W
TOTAL
7314 points/W
9965 points/W
Performance/GHz
i7-8665U
i5-8265U
Test#1 (Integers)
2996 points/GHz
6235 points/GHz
Test#2 (FP)
2799 points/GHz
5219 points/GHz
Test#3 (Generic, ZIP)
599 points/GHz
1124 points/GHz
Test#1 (Memory)
936 points/GHz
2183 points/GHz
TOTAL
7330 points/GHz
14762 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