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Core i7-7660U vs i7-6560U


Description
The i7-7660U is based on Kaby Lake architecture while the i7-6560U is based on Skylake.

Using the multithread performance as a reference, the i7-7660U gets a score of 132.8 k points while the i7-6560U gets 107 k points.

Summarizing, the i7-7660U 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
806e9
406e3
Core
Kaby Lake-U
Skylake-U
Architecture
Base frecuency
2.5 GHz
2.2 GHz
Boost frecuency
4 GHz
3.2 GHz
Socket
BGA 1356
BGA1356
Cores/Threads
2/4
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
4096 kB
4096 kB
Date
January 2017
September 2015
Mean monothread perf.
57.46k points
52.96k points
Mean multithread perf.
132.81k points
107.01k 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
i7-7660U
i7-6560U
Test#1 (Integers)
22.46k
22.21k (x0.99)
Test#2 (FP)
19.29k
19.25k (x1)
Test#3 (Generic, ZIP)
4.77k
4.41k (x0.92)
Test#1 (Memory)
10.94k
7.09k (x0.65)
TOTAL
57.46k
52.96k (x0.92)

Multithread

i7-7660U

i7-6560U
Test#1 (Integers)
56.67k
44.94k (x0.79)
Test#2 (FP)
46.95k
44.98k (x0.96)
Test#3 (Generic, ZIP)
12.36k
10.83k (x0.88)
Test#1 (Memory)
16.84k
6.26k (x0.37)
TOTAL
132.81k
107.01k (x0.81)

Performance/W
i7-7660U
i7-6560U
Test#1 (Integers)
3778 points/W
2996 points/W
Test#2 (FP)
3130 points/W
2998 points/W
Test#3 (Generic, ZIP)
824 points/W
722 points/W
Test#1 (Memory)
1122 points/W
418 points/W
TOTAL
8854 points/W
7134 points/W

Performance/GHz
i7-7660U
i7-6560U
Test#1 (Integers)
5614 points/GHz
6941 points/GHz
Test#2 (FP)
4823 points/GHz
6017 points/GHz
Test#3 (Generic, ZIP)
1193 points/GHz
1377 points/GHz
Test#1 (Memory)
2735 points/GHz
2214 points/GHz
TOTAL
14365 points/GHz
16550 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