Core i7-6700HQ vs i5-6400
Description
Both models i7-6700HQ and i5-6400 are based on Skylake architecture.
Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.
Using the multithread performance as a reference, the i7-6700HQ gets a score of 205.2 k points while the i5-6400 gets 174.1 k points.
Summarizing, the i7-6700HQ is 1.2 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.
Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.
Using the multithread performance as a reference, the i7-6700HQ gets a score of 205.2 k points while the i5-6400 gets 174.1 k points.
Summarizing, the i7-6700HQ is 1.2 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
506e3
506e3
Core
Skylake-H
Skylake-S
Base frecuency
2.6 GHz
2.7 GHz
Boost frecuency
3.5 GHz
3.3 GHz
Socket
BGA1440
LGA 1151
Cores/Threads
4/8
4/4
TDP
45 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
September 2015
Mean monothread perf.
50.54k points
48.05k points
Mean multithread perf.
205.24k points
174.05k 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
i5-6400
Test#1 (Integers)
11.23k
11.82k (x1.05)
Test#2 (FP)
16.98k
18.36k (x1.08)
Test#3 (Generic, ZIP)
4.21k
4.43k (x1.05)
Test#1 (Memory)
7.07k
4.95k (x0.7)
TOTAL
39.49k
39.56k (x1)
Multithread
i7-6700HQ
i5-6400
Test#1 (Integers)
44.59k
46.04k (x1.03)
Test#2 (FP)
75.02k
69.47k (x0.93)
Test#3 (Generic, ZIP)
20.15k
16.33k (x0.81)
Test#1 (Memory)
5.92k
7.74k (x1.31)
TOTAL
145.68k
139.58k (x0.96)
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
i5-6400
Test#1 (Integers)
21.33k
21.1k (x0.99)
Test#2 (FP)
18.34k
18.28k (x1)
Test#3 (Generic, ZIP)
4.44k
4.22k (x0.95)
Test#1 (Memory)
6.44k
4.45k (x0.69)
TOTAL
50.54k
48.05k (x0.95)
Multithread
i7-6700HQ
i5-6400
Test#1 (Integers)
91.89k
80.03k (x0.87)
Test#2 (FP)
87.87k
71.1k (x0.81)
Test#3 (Generic, ZIP)
20.61k
16.19k (x0.79)
Test#1 (Memory)
4.87k
6.73k (x1.38)
TOTAL
205.24k
174.05k (x0.85)
Performance/W
i7-6700HQ
i5-6400
Test#1 (Integers)
2042 points/W
1231 points/W
Test#2 (FP)
1953 points/W
1094 points/W
Test#3 (Generic, ZIP)
458 points/W
249 points/W
Test#1 (Memory)
108 points/W
104 points/W
TOTAL
4561 points/W
2678 points/W
Performance/GHz
i7-6700HQ
i5-6400
Test#1 (Integers)
6094 points/GHz
6394 points/GHz
Test#2 (FP)
5240 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
1279 points/GHz
Test#1 (Memory)
1840 points/GHz
1348 points/GHz
TOTAL
14441 points/GHz
14560 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4