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Core i7-4720HQ vs i5-6400


Description
The i7-4720HQ is based on Haswell architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i7-4720HQ gets a score of 132.3 k points while the i5-6400 gets 174.1 k points.

Summarizing, the i5-6400 is 1.3 times faster than the i7-4720HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306c3
506e3
Core
Haswell
Skylake-S
Architecture
Base frecuency
2.6 GHz
2.7 GHz
Boost frecuency
3.6 GHz
3.3 GHz
Socket
BGA1364
LGA 1151
Cores/Threads
4/8
4/4
TDP
47 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
January 2015
September 2015
Mean monothread perf.
40.12k points
48.05k points
Mean multithread perf.
132.35k points
174.05k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-4720HQ
i5-6400
Test#1 (Integers)
3.79k
3.2k (x0.84)
Test#2 (FP)
9.64k
12.81k (x1.33)
Test#3 (Generic, ZIP)
4.34k
4.18k (x0.96)
Test#1 (Memory)
3.76k
4.3k (x1.14)
TOTAL
21.53k
24.49k (x1.14)

Multithread

i7-4720HQ

i5-6400
Test#1 (Integers)
11.66k
11.45k (x0.98)
Test#2 (FP)
37.71k
46.67k (x1.24)
Test#3 (Generic, ZIP)
16.38k
14.69k (x0.9)
Test#1 (Memory)
5.94k
5.92k (x1)
TOTAL
71.69k
78.73k (x1.1)

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
i7-4720HQ
i5-6400
Test#1 (Integers)
20.68k
21.1k (x1.02)
Test#2 (FP)
10.28k
18.28k (x1.78)
Test#3 (Generic, ZIP)
4.87k
4.22k (x0.87)
Test#1 (Memory)
4.29k
4.45k (x1.04)
TOTAL
40.12k
48.05k (x1.2)

Multithread

i7-4720HQ

i5-6400
Test#1 (Integers)
66.84k
80.03k (x1.2)
Test#2 (FP)
42.85k
71.1k (x1.66)
Test#3 (Generic, ZIP)
16.77k
16.19k (x0.97)
Test#1 (Memory)
5.88k
6.73k (x1.14)
TOTAL
132.35k
174.05k (x1.32)

Performance/W
i7-4720HQ
i5-6400
Test#1 (Integers)
1422 points/W
1231 points/W
Test#2 (FP)
912 points/W
1094 points/W
Test#3 (Generic, ZIP)
357 points/W
249 points/W
Test#1 (Memory)
125 points/W
104 points/W
TOTAL
2816 points/W
2678 points/W

Performance/GHz
i7-4720HQ
i5-6400
Test#1 (Integers)
5745 points/GHz
6394 points/GHz
Test#2 (FP)
2856 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
1352 points/GHz
1279 points/GHz
Test#1 (Memory)
1191 points/GHz
1348 points/GHz
TOTAL
11143 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.


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