Core i7-6820HQ vs i7-4720HQ
Description
The i7-6820HQ is based on Skylake architecture while the i7-4720HQ is based on Haswell.
Using the multithread performance as a reference, the i7-6820HQ gets a score of 205.9 k points while the i7-4720HQ gets 132.3 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 i7-6820HQ gets a score of 205.9 k points while the i7-4720HQ gets 132.3 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
506e3
306c3
Core
Skylake-H
Haswell
Base frecuency
2.7 GHz
2.6 GHz
Boost frecuency
3.6 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
8192 kB
6144 kB
Date
October 2015
January 2015
Mean monothread perf.
50.1k points
40.12k points
Mean multithread perf.
205.89k points
132.35k 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
i7-6820HQ
i7-4720HQ
Test#1 (Integers)
3.18k
3.79k (x1.19)
Test#2 (FP)
13.02k
9.64k (x0.74)
Test#3 (Generic, ZIP)
4.17k
4.34k (x1.04)
Test#1 (Memory)
6.93k
3.76k (x0.54)
TOTAL
27.3k
21.53k (x0.79)
Multithread
i7-6820HQ
i7-4720HQ
Test#1 (Integers)
13.26k
11.66k (x0.88)
Test#2 (FP)
62.23k
37.71k (x0.61)
Test#3 (Generic, ZIP)
20.34k
16.38k (x0.81)
Test#1 (Memory)
5.46k
5.94k (x1.09)
TOTAL
101.29k
71.69k (x0.71)
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
i7-6820HQ
i7-4720HQ
Test#1 (Integers)
20.99k
20.68k (x0.99)
Test#2 (FP)
18.63k
10.28k (x0.55)
Test#3 (Generic, ZIP)
4.33k
4.87k (x1.12)
Test#1 (Memory)
6.15k
4.29k (x0.7)
TOTAL
50.1k
40.12k (x0.8)
Multithread
i7-6820HQ
i7-4720HQ
Test#1 (Integers)
91.8k
66.84k (x0.73)
Test#2 (FP)
87.24k
42.85k (x0.49)
Test#3 (Generic, ZIP)
20.55k
16.77k (x0.82)
Test#1 (Memory)
6.3k
5.88k (x0.93)
TOTAL
205.89k
132.35k (x0.64)
Performance/W
i7-6820HQ
i7-4720HQ
Test#1 (Integers)
2040 points/W
1422 points/W
Test#2 (FP)
1939 points/W
912 points/W
Test#3 (Generic, ZIP)
457 points/W
357 points/W
Test#1 (Memory)
140 points/W
125 points/W
TOTAL
4575 points/W
2816 points/W
Performance/GHz
i7-6820HQ
i7-4720HQ
Test#1 (Integers)
5831 points/GHz
5745 points/GHz
Test#2 (FP)
5174 points/GHz
2856 points/GHz
Test#3 (Generic, ZIP)
1204 points/GHz
1352 points/GHz
Test#1 (Memory)
1708 points/GHz
1191 points/GHz
TOTAL
13917 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.
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