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Core i7-6560U vs i7-8665U


Description
The i7-6560U is based on Skylake architecture while the i7-8665U is based on Whiskey Lake.

Using the multithread performance as a reference, the i7-6560U gets a score of 107 k points while the i7-8665U gets 123.1 k points.

Summarizing, the i7-8665U is 1.2 times faster than the i7-6560U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
806ec
Core
Skylake-U
Whiskey Lake-U
Architecture
Base frecuency
2.2 GHz
1.9 GHz
Boost frecuency
3.2 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
September 2015
April 2019
Mean monothread perf.
52.96k points
41.66k points
Mean multithread perf.
107.01k points
123.09k 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
i7-6560U
i7-8665U
Test#1 (Integers)
22.21k
16.92k (x0.76)
Test#2 (FP)
19.25k
15.41k (x0.8)
Test#3 (Generic, ZIP)
4.41k
3.33k (x0.76)
Test#1 (Memory)
7.09k
6k (x0.85)
TOTAL
52.96k
41.66k (x0.79)

Multithread

i7-6560U

i7-8665U
Test#1 (Integers)
44.94k
53.19k (x1.18)
Test#2 (FP)
44.98k
52.4k (x1.17)
Test#3 (Generic, ZIP)
10.83k
11.67k (x1.08)
Test#1 (Memory)
6.26k
5.83k (x0.93)
TOTAL
107.01k
123.09k (x1.15)

Performance/W
i7-6560U
i7-8665U
Test#1 (Integers)
2996 points/W
3546 points/W
Test#2 (FP)
2998 points/W
3493 points/W
Test#3 (Generic, ZIP)
722 points/W
778 points/W
Test#1 (Memory)
418 points/W
389 points/W
TOTAL
7134 points/W
8206 points/W

Performance/GHz
i7-6560U
i7-8665U
Test#1 (Integers)
6941 points/GHz
3525 points/GHz
Test#2 (FP)
6017 points/GHz
3210 points/GHz
Test#3 (Generic, ZIP)
1377 points/GHz
694 points/GHz
Test#1 (Memory)
2214 points/GHz
1251 points/GHz
TOTAL
16550 points/GHz
8680 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