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Core i7-6820HQ vs i5-4570


Description
The i7-6820HQ is based on Skylake architecture while the i5-4570 is based on Haswell.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 205.9 k points while the i5-4570 gets 161.6 k points.

Summarizing, the i7-6820HQ is 1.3 times faster than the i5-4570 . 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
3.2 GHz
Boost frecuency
3.6 GHz
3.6 GHz
Socket
BGA1440
LGA 1150
Cores/Threads
4/8
4/4
TDP
45 W
84 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
6144 kB
Date
October 2015
September 2013
Mean monothread perf.
50.1k points
43.56k points
Mean multithread perf.
205.89k points
161.61k 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
i5-4570
Test#1 (Integers)
3.18k
4.16k (x1.31)
Test#2 (FP)
13.02k
10.33k (x0.79)
Test#3 (Generic, ZIP)
4.17k
4.74k (x1.14)
Test#1 (Memory)
6.93k
4.33k (x0.63)
TOTAL
27.3k
23.56k (x0.86)

Multithread

i7-6820HQ

i5-4570
Test#1 (Integers)
13.26k
16.5k (x1.24)
Test#2 (FP)
62.23k
41.12k (x0.66)
Test#3 (Generic, ZIP)
20.34k
18.71k (x0.92)
Test#1 (Memory)
5.46k
7.43k (x1.36)
TOTAL
101.29k
83.76k (x0.83)

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
i5-4570
Test#1 (Integers)
11.54k
12.82k (x1.11)
Test#2 (FP)
16.69k
11.4k (x0.68)
Test#3 (Generic, ZIP)
4.51k
5.03k (x1.12)
Test#1 (Memory)
7.27k
4.27k (x0.59)
TOTAL
40.01k
33.53k (x0.84)

Multithread

i7-6820HQ

i5-4570
Test#1 (Integers)
48.5k
50.8k (x1.05)
Test#2 (FP)
77.02k
45.22k (x0.59)
Test#3 (Generic, ZIP)
21.3k
19.84k (x0.93)
Test#1 (Memory)
5.24k
4.85k (x0.92)
TOTAL
152.06k
120.71k (x0.79)

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
i5-4570
Test#1 (Integers)
11.78k
13.13k (x1.11)
Test#2 (FP)
18.06k
12.02k (x0.67)
Test#3 (Generic, ZIP)
4.48k
5k (x1.12)
Test#1 (Memory)
7.12k
4.65k (x0.65)
TOTAL
41.44k
34.8k (x0.84)

Multithread

i7-6820HQ

i5-4570
Test#1 (Integers)
49.46k
49.75k (x1.01)
Test#2 (FP)
84.8k
45.72k (x0.54)
Test#3 (Generic, ZIP)
20.7k
19.93k (x0.96)
Test#1 (Memory)
4.77k
9.05k (x1.9)
TOTAL
159.73k
124.44k (x0.78)

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
i5-4570
Test#1 (Integers)
20.99k
21.72k (x1.03)
Test#2 (FP)
18.63k
12.27k (x0.66)
Test#3 (Generic, ZIP)
4.33k
5.03k (x1.16)
Test#1 (Memory)
6.15k
4.54k (x0.74)
TOTAL
50.1k
43.56k (x0.87)

Multithread

i7-6820HQ

i5-4570
Test#1 (Integers)
91.8k
85.75k (x0.93)
Test#2 (FP)
87.24k
48.71k (x0.56)
Test#3 (Generic, ZIP)
20.55k
20.08k (x0.98)
Test#1 (Memory)
6.3k
7.07k (x1.12)
TOTAL
205.89k
161.61k (x0.78)

Performance/W
i7-6820HQ
i5-4570
Test#1 (Integers)
2040 points/W
1021 points/W
Test#2 (FP)
1939 points/W
580 points/W
Test#3 (Generic, ZIP)
457 points/W
239 points/W
Test#1 (Memory)
140 points/W
84 points/W
TOTAL
4575 points/W
1924 points/W

Performance/GHz
i7-6820HQ
i5-4570
Test#1 (Integers)
5831 points/GHz
6034 points/GHz
Test#2 (FP)
5174 points/GHz
3408 points/GHz
Test#3 (Generic, ZIP)
1204 points/GHz
1398 points/GHz
Test#1 (Memory)
1708 points/GHz
1261 points/GHz
TOTAL
13917 points/GHz
12101 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