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Core i7-8565U vs i7-8650U


Description
The i7-8565U is based on Whiskey Lake architecture while the i7-8650U 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 i7-8650U gets 173.5 k points.

Summarizing, the i7-8650U is 1.2 times faster than the i7-8565U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806eb
806ea
Core
Whiskey Lake-U
Kaby Lake-R
Architecture
Base frecuency
1.8 GHz
1.9 GHz
Boost frecuency
4.6 GHz
4.2 GHz
Socket
BGA 1528
BGA 1356
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 2018
August 2017
Mean monothread perf.
67.83k points
55.86k points
Mean multithread perf.
142.55k points
173.49k 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
i7-8650U
Test#1 (Integers)
27.2k
21.61k (x0.79)
Test#2 (FP)
23.47k
19.69k (x0.84)
Test#3 (Generic, ZIP)
4.91k
4.61k (x0.94)
Test#1 (Memory)
12.25k
9.95k (x0.81)
TOTAL
67.83k
55.86k (x0.82)

Multithread

i7-8565U

i7-8650U
Test#1 (Integers)
64.33k
78.38k (x1.22)
Test#2 (FP)
58.47k
72.02k (x1.23)
Test#3 (Generic, ZIP)
15.82k
16.95k (x1.07)
Test#1 (Memory)
3.93k
6.15k (x1.56)
TOTAL
142.55k
173.49k (x1.22)

Performance/W
i7-8565U
i7-8650U
Test#1 (Integers)
4288 points/W
5225 points/W
Test#2 (FP)
3898 points/W
4802 points/W
Test#3 (Generic, ZIP)
1055 points/W
1130 points/W
Test#1 (Memory)
262 points/W
410 points/W
TOTAL
9503 points/W
11566 points/W

Performance/GHz
i7-8565U
i7-8650U
Test#1 (Integers)
5914 points/GHz
5146 points/GHz
Test#2 (FP)
5103 points/GHz
4689 points/GHz
Test#3 (Generic, ZIP)
1067 points/GHz
1097 points/GHz
Test#1 (Memory)
2663 points/GHz
2368 points/GHz
TOTAL
14746 points/GHz
13300 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