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Core i7-6700HQ vs i7-7020U


Description
The i7-6700HQ is based on Skylake architecture while the i7-7020U is based on Kaby Lake.

Using the multithread performance as a reference, the i7-6700HQ gets a score of 205.2 k points while the i7-7020U gets 73.1 k points.

Summarizing, the i7-6700HQ is 2.8 times faster than the i7-7020U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
806ea
Core
Skylake-H
Kaby Lake-U
Architecture
Base frecuency
2.6 GHz
2.3 GHz
Boost frecuency
3.5 GHz
2.3 GHz
Socket
BGA1440
BGA 1356
Cores/Threads
4/8
2/4
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
3072 kB
Date
April 2018
Mean monothread perf.
50.54k points
33.63k points
Mean multithread perf.
205.24k points
73.15k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-6700HQ
i7-7020U
Test#1 (Integers)
11.23k
8.17k (x0.73)
Test#2 (FP)
16.98k
12.42k (x0.73)
Test#3 (Generic, ZIP)
4.21k
2.87k (x0.68)
Test#1 (Memory)
7.07k
4.68k (x0.66)
TOTAL
39.49k
28.13k (x0.71)

Multithread

i7-6700HQ

i7-7020U
Test#1 (Integers)
44.59k
17.65k (x0.4)
Test#2 (FP)
75.02k
30.44k (x0.41)
Test#3 (Generic, ZIP)
20.15k
7.19k (x0.36)
Test#1 (Memory)
5.92k
4.79k (x0.81)
TOTAL
145.68k
60.07k (x0.41)

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
i7-6700HQ
i7-7020U
Test#1 (Integers)
21.33k
14.25k (x0.67)
Test#2 (FP)
18.34k
12.72k (x0.69)
Test#3 (Generic, ZIP)
4.44k
2.81k (x0.63)
Test#1 (Memory)
6.44k
3.86k (x0.6)
TOTAL
50.54k
33.63k (x0.67)

Multithread

i7-6700HQ

i7-7020U
Test#1 (Integers)
91.89k
31.11k (x0.34)
Test#2 (FP)
87.87k
31.15k (x0.35)
Test#3 (Generic, ZIP)
20.61k
6.9k (x0.33)
Test#1 (Memory)
4.87k
3.99k (x0.82)
TOTAL
205.24k
73.15k (x0.36)

Performance/W
i7-6700HQ
i7-7020U
Test#1 (Integers)
2042 points/W
2074 points/W
Test#2 (FP)
1953 points/W
2076 points/W
Test#3 (Generic, ZIP)
458 points/W
460 points/W
Test#1 (Memory)
108 points/W
266 points/W
TOTAL
4561 points/W
4877 points/W

Performance/GHz
i7-6700HQ
i7-7020U
Test#1 (Integers)
6094 points/GHz
6196 points/GHz
Test#2 (FP)
5240 points/GHz
5528 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
1221 points/GHz
Test#1 (Memory)
1840 points/GHz
1679 points/GHz
TOTAL
14441 points/GHz
14624 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