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Core i7-6820HQ vs i5-4440


Description
The i7-6820HQ is based on Skylake architecture while the i5-4440 is based on Haswell.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 205.9 k points while the i5-4440 gets 138.7 k points.

Summarizing, the i7-6820HQ is 1.5 times faster than the i5-4440 . 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
2.7 GHz
3.1 GHz
Boost frecuency
3.6 GHz
3.3 GHz
Socket
BGA1440
LGA 1150
Cores/Threads
4/8
4/4
TDP
45 W
84 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
June 2013
Mean monothread perf.
50.1k points
38.29k points
Mean multithread perf.
205.89k points
138.69k 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
i5-4440
Test#1 (Integers)
3.18k
3.71k (x1.17)
Test#2 (FP)
13.02k
9.23k (x0.71)
Test#3 (Generic, ZIP)
4.17k
4.28k (x1.03)
Test#1 (Memory)
6.93k
3.8k (x0.55)
TOTAL
27.3k
21.02k (x0.77)

Multithread

i7-6820HQ

i5-4440
Test#1 (Integers)
13.26k
13.33k (x1.01)
Test#2 (FP)
62.23k
34.2k (x0.55)
Test#3 (Generic, ZIP)
20.34k
15.91k (x0.78)
Test#1 (Memory)
5.46k
6.56k (x1.2)
TOTAL
101.29k
70k (x0.69)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-6820HQ
i5-4440
Test#1 (Integers)
11.54k
11.43k (x0.99)
Test#2 (FP)
16.69k
10.13k (x0.61)
Test#3 (Generic, ZIP)
4.51k
4.53k (x1)
Test#1 (Memory)
7.27k
3.93k (x0.54)
TOTAL
40.01k
30.01k (x0.75)

Multithread

i7-6820HQ

i5-4440
Test#1 (Integers)
48.5k
43.67k (x0.9)
Test#2 (FP)
77.02k
38.78k (x0.5)
Test#3 (Generic, ZIP)
21.3k
17.03k (x0.8)
Test#1 (Memory)
5.24k
7.72k (x1.47)
TOTAL
152.06k
107.2k (x0.7)

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
i7-6820HQ
i5-4440
Test#1 (Integers)
11.78k
11.56k (x0.98)
Test#2 (FP)
18.06k
10.36k (x0.57)
Test#3 (Generic, ZIP)
4.48k
4.45k (x0.99)
Test#1 (Memory)
7.12k
3.8k (x0.53)
TOTAL
41.44k
30.17k (x0.73)

Multithread

i7-6820HQ

i5-4440
Test#1 (Integers)
49.46k
44.07k (x0.89)
Test#2 (FP)
84.8k
41.07k (x0.48)
Test#3 (Generic, ZIP)
20.7k
16.89k (x0.82)
Test#1 (Memory)
4.77k
7.33k (x1.54)
TOTAL
159.73k
109.35k (x0.68)

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
i5-4440
Test#1 (Integers)
20.99k
19.08k (x0.91)
Test#2 (FP)
18.63k
10.47k (x0.56)
Test#3 (Generic, ZIP)
4.33k
4.53k (x1.04)
Test#1 (Memory)
6.15k
4.21k (x0.68)
TOTAL
50.1k
38.29k (x0.76)

Multithread

i7-6820HQ

i5-4440
Test#1 (Integers)
91.8k
73.26k (x0.8)
Test#2 (FP)
87.24k
41.01k (x0.47)
Test#3 (Generic, ZIP)
20.55k
17.12k (x0.83)
Test#1 (Memory)
6.3k
7.3k (x1.16)
TOTAL
205.89k
138.69k (x0.67)

Performance/W
i7-6820HQ
i5-4440
Test#1 (Integers)
2040 points/W
872 points/W
Test#2 (FP)
1939 points/W
488 points/W
Test#3 (Generic, ZIP)
457 points/W
204 points/W
Test#1 (Memory)
140 points/W
87 points/W
TOTAL
4575 points/W
1651 points/W

Performance/GHz
i7-6820HQ
i5-4440
Test#1 (Integers)
5831 points/GHz
5783 points/GHz
Test#2 (FP)
5174 points/GHz
3174 points/GHz
Test#3 (Generic, ZIP)
1204 points/GHz
1372 points/GHz
Test#1 (Memory)
1708 points/GHz
1275 points/GHz
TOTAL
13917 points/GHz
11604 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