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Core i7-6700HQ vs i7-4720HQ


Description
The i7-6700HQ is based on Skylake architecture while the i7-4720HQ is based on Haswell.

Using the multithread performance as a reference, the i7-6700HQ gets a score of 205.2 k points while the i7-4720HQ gets 132.3 k points.

Summarizing, the i7-6700HQ is 1.6 times faster than the i7-4720HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306c3
Core
Skylake-H
Haswell
Architecture
Base frecuency
2.6 GHz
2.6 GHz
Boost frecuency
3.5 GHz
3.6 GHz
Socket
BGA1440
BGA1364
Cores/Threads
4/8
4/8
TDP
45 W
47 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
January 2015
Mean monothread perf.
50.54k points
40.12k points
Mean multithread perf.
205.24k points
132.35k 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
i7-6700HQ
i7-4720HQ
Test#1 (Integers)
21.33k
20.68k (x0.97)
Test#2 (FP)
18.34k
10.28k (x0.56)
Test#3 (Generic, ZIP)
4.44k
4.87k (x1.1)
Test#1 (Memory)
6.44k
4.29k (x0.67)
TOTAL
50.54k
40.12k (x0.79)

Multithread

i7-6700HQ

i7-4720HQ
Test#1 (Integers)
91.89k
66.84k (x0.73)
Test#2 (FP)
87.87k
42.85k (x0.49)
Test#3 (Generic, ZIP)
20.61k
16.77k (x0.81)
Test#1 (Memory)
4.87k
5.88k (x1.21)
TOTAL
205.24k
132.35k (x0.64)

Performance/W
i7-6700HQ
i7-4720HQ
Test#1 (Integers)
2042 points/W
1422 points/W
Test#2 (FP)
1953 points/W
912 points/W
Test#3 (Generic, ZIP)
458 points/W
357 points/W
Test#1 (Memory)
108 points/W
125 points/W
TOTAL
4561 points/W
2816 points/W

Performance/GHz
i7-6700HQ
i7-4720HQ
Test#1 (Integers)
6094 points/GHz
5745 points/GHz
Test#2 (FP)
5240 points/GHz
2856 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
1352 points/GHz
Test#1 (Memory)
1840 points/GHz
1191 points/GHz
TOTAL
14441 points/GHz
11143 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