Core i7-8550U vs i7-8665U
Description
The i7-8550U is based on Kaby Lake architecture while the i7-8665U is based on Whiskey Lake.
Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i7-8665U gets 109.7 k points.
Summarizing, the i7-8550U is 1.5 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-8550U gets a score of 166.1 k points while the i7-8665U gets 109.7 k points.
Summarizing, the i7-8550U is 1.5 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ea
806ec
Core
Kaby Lake-R
Whiskey Lake-U
Base frecuency
1.8 GHz
1.9 GHz
Boost frecuency
4 GHz
4.8 GHz
Socket
BGA1356
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
August 2017
April 2019
Mean monothread perf.
64.2k points
35.19k points
Mean multithread perf.
166.12k 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
i7-8550U
i7-8665U
Test#1 (Integers)
25.37k
14.38k (x0.57)
Test#2 (FP)
22.6k
13.43k (x0.59)
Test#3 (Generic, ZIP)
5.13k
2.87k (x0.56)
Test#1 (Memory)
11.1k
4.49k (x0.41)
TOTAL
64.2k
35.19k (x0.55)
Multithread
i7-8550U
i7-8665U
Test#1 (Integers)
72.82k
47.22k (x0.65)
Test#2 (FP)
71.71k
46.99k (x0.66)
Test#3 (Generic, ZIP)
17.35k
10.08k (x0.58)
Test#1 (Memory)
4.24k
5.42k (x1.28)
TOTAL
166.12k
109.72k (x0.66)
Performance/W
i7-8550U
i7-8665U
Test#1 (Integers)
4855 points/W
3148 points/W
Test#2 (FP)
4781 points/W
3133 points/W
Test#3 (Generic, ZIP)
1157 points/W
672 points/W
Test#1 (Memory)
282 points/W
361 points/W
TOTAL
11075 points/W
7314 points/W
Performance/GHz
i7-8550U
i7-8665U
Test#1 (Integers)
6343 points/GHz
2996 points/GHz
Test#2 (FP)
5650 points/GHz
2799 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
599 points/GHz
Test#1 (Memory)
2774 points/GHz
936 points/GHz
TOTAL
16049 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