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Core i7-6820HQ vs i5-7200U


Description
The i7-6820HQ is based on Skylake architecture while the i5-7200U is based on Kaby Lake.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 205.9 k points while the i5-7200U gets 97.5 k points.

Summarizing, the i7-6820HQ is 2.1 times faster than the i5-7200U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
806e9
Core
Skylake-H
Kaby Lake-U
Architecture
Base frecuency
2.7 GHz
2.5 GHz
Boost frecuency
3.6 GHz
3.1 GHz
Socket
BGA1440
BGA1356
Cores/Threads
4/8
2/4
TDP
45 W
15 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
August 2016
Mean monothread perf.
50.1k points
44.94k points
Mean multithread perf.
205.89k points
97.52k 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
i5-7200U
Test#1 (Integers)
3.18k
3.15k (x0.99)
Test#2 (FP)
13.02k
12.85k (x0.99)
Test#3 (Generic, ZIP)
4.17k
4.14k (x0.99)
Test#1 (Memory)
6.93k
5.21k (x0.75)
TOTAL
27.3k
25.36k (x0.93)

Multithread

i7-6820HQ

i5-7200U
Test#1 (Integers)
13.26k
6.28k (x0.47)
Test#2 (FP)
62.23k
29.27k (x0.47)
Test#3 (Generic, ZIP)
20.34k
9.31k (x0.46)
Test#1 (Memory)
5.46k
4.71k (x0.86)
TOTAL
101.29k
49.56k (x0.49)

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
i5-7200U
Test#1 (Integers)
11.54k
11.39k (x0.99)
Test#2 (FP)
16.69k
16.47k (x0.99)
Test#3 (Generic, ZIP)
4.51k
4.36k (x0.97)
Test#1 (Memory)
7.27k
5.21k (x0.72)
TOTAL
40.01k
37.43k (x0.94)

Multithread

i7-6820HQ

i5-7200U
Test#1 (Integers)
48.5k
23.57k (x0.49)
Test#2 (FP)
77.02k
37.4k (x0.49)
Test#3 (Generic, ZIP)
21.3k
10.15k (x0.48)
Test#1 (Memory)
5.24k
4.78k (x0.91)
TOTAL
152.06k
75.9k (x0.5)

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
i5-7200U
Test#1 (Integers)
11.78k
11.36k (x0.96)
Test#2 (FP)
18.06k
17.26k (x0.96)
Test#3 (Generic, ZIP)
4.48k
4.03k (x0.9)
Test#1 (Memory)
7.12k
4.77k (x0.67)
TOTAL
41.44k
37.42k (x0.9)

Multithread

i7-6820HQ

i5-7200U
Test#1 (Integers)
49.46k
24.08k (x0.49)
Test#2 (FP)
84.8k
41.23k (x0.49)
Test#3 (Generic, ZIP)
20.7k
10.19k (x0.49)
Test#1 (Memory)
4.77k
4.72k (x0.99)
TOTAL
159.73k
80.22k (x0.5)

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
i5-7200U
Test#1 (Integers)
20.99k
19.34k (x0.92)
Test#2 (FP)
18.63k
17.47k (x0.94)
Test#3 (Generic, ZIP)
4.33k
4.08k (x0.94)
Test#1 (Memory)
6.15k
4.04k (x0.66)
TOTAL
50.1k
44.94k (x0.9)

Multithread

i7-6820HQ

i5-7200U
Test#1 (Integers)
91.8k
42.86k (x0.47)
Test#2 (FP)
87.24k
41.3k (x0.47)
Test#3 (Generic, ZIP)
20.55k
9.69k (x0.47)
Test#1 (Memory)
6.3k
3.68k (x0.58)
TOTAL
205.89k
97.52k (x0.47)

Performance/W
i7-6820HQ
i5-7200U
Test#1 (Integers)
2040 points/W
2857 points/W
Test#2 (FP)
1939 points/W
2753 points/W
Test#3 (Generic, ZIP)
457 points/W
646 points/W
Test#1 (Memory)
140 points/W
245 points/W
TOTAL
4575 points/W
6501 points/W

Performance/GHz
i7-6820HQ
i5-7200U
Test#1 (Integers)
5831 points/GHz
6239 points/GHz
Test#2 (FP)
5174 points/GHz
5637 points/GHz
Test#3 (Generic, ZIP)
1204 points/GHz
1316 points/GHz
Test#1 (Memory)
1708 points/GHz
1304 points/GHz
TOTAL
13917 points/GHz
14496 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