Core i7-7500U vs i7-8665U
Description
The i7-7500U is based on Kaby Lake architecture while the i7-8665U is based on Whiskey Lake.
Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i7-8665U gets 109.7 k points.
Summarizing, the i7-8665U is 1.3 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-7500U gets a score of 86.9 k points while the i7-8665U gets 109.7 k points.
Summarizing, the i7-8665U is 1.3 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806e9
806ec
Core
Kaby Lake-U
Whiskey Lake-U
Base frecuency
2.7 GHz
1.9 GHz
Boost frecuency
3.5 GHz
4.8 GHz
Socket
BGA1356
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 2016
April 2019
Mean monothread perf.
48.67k points
35.19k points
Mean multithread perf.
86.94k points
109.72k 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
i7-7500U
i7-8665U
Test#1 (Integers)
20.74k
14.38k (x0.69)
Test#2 (FP)
18.41k
13.43k (x0.73)
Test#3 (Generic, ZIP)
3.98k
2.87k (x0.72)
Test#1 (Memory)
5.54k
4.49k (x0.81)
TOTAL
48.67k
35.19k (x0.72)
Multithread
i7-7500U
i7-8665U
Test#1 (Integers)
37.34k
47.22k (x1.26)
Test#2 (FP)
35.79k
46.99k (x1.31)
Test#3 (Generic, ZIP)
8.34k
10.08k (x1.21)
Test#1 (Memory)
5.48k
5.42k (x0.99)
TOTAL
86.94k
109.72k (x1.26)
Performance/W
i7-7500U
i7-8665U
Test#1 (Integers)
2489 points/W
3148 points/W
Test#2 (FP)
2386 points/W
3133 points/W
Test#3 (Generic, ZIP)
556 points/W
672 points/W
Test#1 (Memory)
365 points/W
361 points/W
TOTAL
5796 points/W
7314 points/W
Performance/GHz
i7-7500U
i7-8665U
Test#1 (Integers)
5926 points/GHz
2996 points/GHz
Test#2 (FP)
5260 points/GHz
2799 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
599 points/GHz
Test#1 (Memory)
1584 points/GHz
936 points/GHz
TOTAL
13907 points/GHz
7330 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