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Core i7-6820HQ vs i3-4170


Description
The i7-6820HQ is based on Skylake architecture while the i3-4170 is based on Haswell.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 206.3 k points while the i3-4170 gets 92.7 k points.

Summarizing, the i7-6820HQ is 2.2 times faster than the i3-4170. 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
3.7 GHz
Boost frecuency
3.6 GHz
3.7 GHz
Socket
BGA1440
LGA1150
Cores/Threads
4/8
2/4
TDP
45 W
54 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
October 2015
March 2015

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
i3-4170
Test#1 (Integers)
3180
4235 (33.19%)
Test#2 (FP)
13020
10580 (-18.74%)
Test#3 (Generic, ZIP)
4169
4867 (16.75%)
Test#1 (Memory)
6931
4200 (-39.40%)
TOTAL
27299
23882 (-12.52%)

Multithread

i7-6820HQ

i3-4170
Test#1 (Integers)
13259
7705 (-41.89%)
Test#2 (FP)
62228
27136 (-56.39%)
Test#3 (Generic, ZIP)
20342
11480 (-43.56%)
Test#1 (Memory)
5464
2681 (-50.92%)
TOTAL
101292
49003 (-51.62%)

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
i3-4170
Test#1 (Integers)
11536
13103 (13.58%)
Test#2 (FP)
16687
11680 (-30.01%)
Test#3 (Generic, ZIP)
4514
5065 (12.21%)
Test#1 (Memory)
7273
4190 (-42.39%)
TOTAL
40011
34038 (-14.93%)

Multithread

i7-6820HQ

i3-4170
Test#1 (Integers)
48501
25810 (-46.79%)
Test#2 (FP)
77016
25003 (-67.54%)
Test#3 (Generic, ZIP)
21301
11964 (-43.83%)
Test#1 (Memory)
5242
3875 (-26.08%)
TOTAL
152060
66651 (-56.17%)

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
i3-4170
Test#1 (Integers)
11784
13243 (12.38%)
Test#2 (FP)
18056
12371 (-31.49%)
Test#3 (Generic, ZIP)
4479
5110 (14.08%)
Test#1 (Memory)
7117
4168 (-41.44%)
TOTAL
41437
34892 (-15.80%)

Multithread

i7-6820HQ

i3-4170
Test#1 (Integers)
49458
28152 (-43.08%)
Test#2 (FP)
84798
29953 (-64.68%)
Test#3 (Generic, ZIP)
20703
11838 (-42.82%)
Test#1 (Memory)
4770
2733 (-42.72%)
TOTAL
159730
72676 (-54.50%)

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
i3-4170
Test#1 (Integers)
21147
22166 (4.82%)
Test#2 (FP)
18663
12584 (-32.57%)
Test#3 (Generic, ZIP)
4359
5089 (16.74%)
Test#1 (Memory)
6240
4399 (-29.50%)
TOTAL
50409
44238 (-12.24%)

Multithread

i7-6820HQ

i3-4170
Test#1 (Integers)
91901
46999 (-48.86%)
Test#2 (FP)
87330
31063 (-64.43%)
Test#3 (Generic, ZIP)
20715
11963 (-42.25%)
Test#1 (Memory)
6325
2683 (-57.58%)
TOTAL
206271
92708 (-55.06%)

Performance/W
i7-6820HQ
i3-4170
Test#1 (Integers)
2042 points/W
870 points/W
Test#2 (FP)
1941 points/W
575 points/W
Test#3 (Generic, ZIP)
460 points/W
222 points/W
Test#1 (Memory)
141 points/W
50 points/W
TOTAL
4584 points/W
1717 points/W

Performance/GHz
i7-6820HQ
i3-4170
Test#1 (Integers)
5874 points/GHz
5991 points/GHz
Test#2 (FP)
5184 points/GHz
3401 points/GHz
Test#3 (Generic, ZIP)
1211 points/GHz
1375 points/GHz
Test#1 (Memory)
1733 points/GHz
1189 points/GHz
TOTAL
14002 points/GHz
11956 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. 3.7.8