Core i7-4720HQ vs i7-6820HQ
Description
The i7-4720HQ is based on Haswell architecture while the i7-6820HQ is based on Skylake.
Using the multithread performance as a reference, the i7-4720HQ gets a score of 132.3 k points while the i7-6820HQ gets 205.9 k points.
Summarizing, the i7-6820HQ 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.
Using the multithread performance as a reference, the i7-4720HQ gets a score of 132.3 k points while the i7-6820HQ gets 205.9 k points.
Summarizing, the i7-6820HQ 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
306c3
506e3
Core
Haswell
Skylake-H
Base frecuency
2.6 GHz
2.7 GHz
Boost frecuency
3.6 GHz
3.6 GHz
Socket
BGA1364
BGA1440
Cores/Threads
4/8
4/8
TDP
47 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
January 2015
October 2015
Mean monothread perf.
40.12k points
50.1k points
Mean multithread perf.
132.35k points
205.89k 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
i7-6820HQ
Test#1 (Integers)
3.79k
3.18k (x0.84)
Test#2 (FP)
9.64k
13.02k (x1.35)
Test#3 (Generic, ZIP)
4.34k
4.17k (x0.96)
Test#1 (Memory)
3.76k
6.93k (x1.84)
TOTAL
21.53k
27.3k (x1.27)
Multithread
i7-4720HQ
i7-6820HQ
Test#1 (Integers)
11.66k
13.26k (x1.14)
Test#2 (FP)
37.71k
62.23k (x1.65)
Test#3 (Generic, ZIP)
16.38k
20.34k (x1.24)
Test#1 (Memory)
5.94k
5.46k (x0.92)
TOTAL
71.69k
101.29k (x1.41)
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
i7-4720HQ
i7-6820HQ
Test#1 (Integers)
20.68k
20.99k (x1.01)
Test#2 (FP)
10.28k
18.63k (x1.81)
Test#3 (Generic, ZIP)
4.87k
4.33k (x0.89)
Test#1 (Memory)
4.29k
6.15k (x1.43)
TOTAL
40.12k
50.1k (x1.25)
Multithread
i7-4720HQ
i7-6820HQ
Test#1 (Integers)
66.84k
91.8k (x1.37)
Test#2 (FP)
42.85k
87.24k (x2.04)
Test#3 (Generic, ZIP)
16.77k
20.55k (x1.23)
Test#1 (Memory)
5.88k
6.3k (x1.07)
TOTAL
132.35k
205.89k (x1.56)
Performance/W
i7-4720HQ
i7-6820HQ
Test#1 (Integers)
1422 points/W
2040 points/W
Test#2 (FP)
912 points/W
1939 points/W
Test#3 (Generic, ZIP)
357 points/W
457 points/W
Test#1 (Memory)
125 points/W
140 points/W
TOTAL
2816 points/W
4575 points/W
Performance/GHz
i7-4720HQ
i7-6820HQ
Test#1 (Integers)
5745 points/GHz
5831 points/GHz
Test#2 (FP)
2856 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1352 points/GHz
1204 points/GHz
Test#1 (Memory)
1191 points/GHz
1708 points/GHz
TOTAL
11143 points/GHz
13917 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