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Core i7-8565U vs i7-7660U


Description
The i7-8565U is based on Whiskey Lake architecture while the i7-7660U is based on Kaby Lake.

Using the multithread performance as a reference, the i7-8565U gets a score of 142.5 k points while the i7-7660U gets 132.8 k points.

Summarizing, the i7-8565U is 1.1 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806eb
806e9
Core
Whiskey Lake-U
Kaby Lake-U
Architecture
Base frecuency
1.8 GHz
2.5 GHz
Boost frecuency
4.6 GHz
4 GHz
Socket
BGA 1528
BGA 1356
Cores/Threads
4/8
2/4
TDP
15 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
August 2018
January 2017
Mean monothread perf.
67.83k points
57.46k points
Mean multithread perf.
142.55k points
132.81k 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
i7-8565U
i7-7660U
Test#1 (Integers)
27.2k
22.46k (x0.83)
Test#2 (FP)
23.47k
19.29k (x0.82)
Test#3 (Generic, ZIP)
4.91k
4.77k (x0.97)
Test#1 (Memory)
12.25k
10.94k (x0.89)
TOTAL
67.83k
57.46k (x0.85)

Multithread

i7-8565U

i7-7660U
Test#1 (Integers)
64.33k
56.67k (x0.88)
Test#2 (FP)
58.47k
46.95k (x0.8)
Test#3 (Generic, ZIP)
15.82k
12.36k (x0.78)
Test#1 (Memory)
3.93k
16.84k (x4.29)
TOTAL
142.55k
132.81k (x0.93)

Performance/W
i7-8565U
i7-7660U
Test#1 (Integers)
4288 points/W
3778 points/W
Test#2 (FP)
3898 points/W
3130 points/W
Test#3 (Generic, ZIP)
1055 points/W
824 points/W
Test#1 (Memory)
262 points/W
1122 points/W
TOTAL
9503 points/W
8854 points/W

Performance/GHz
i7-8565U
i7-7660U
Test#1 (Integers)
5914 points/GHz
5614 points/GHz
Test#2 (FP)
5103 points/GHz
4823 points/GHz
Test#3 (Generic, ZIP)
1067 points/GHz
1193 points/GHz
Test#1 (Memory)
2663 points/GHz
2735 points/GHz
TOTAL
14746 points/GHz
14365 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4