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Core i3-9100 vs i7-6820HQ


Description
The i3-9100 is based on Coffee Lake architecture while the i7-6820HQ is based on Skylake.

Using the multithread performance as a reference, the i3-9100 gets a score of 229.2 k points while the i7-6820HQ gets 205.9 k points.

Summarizing, the i3-9100 is 1.1 times faster than the i7-6820HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906eb
506e3
Core
Coffee Lake-S
Skylake-H
Architecture
Base frecuency
3.6 GHz
2.7 GHz
Boost frecuency
4.2 GHz
3.6 GHz
Socket
LGA 1151
BGA1440
Cores/Threads
4/4
4/8
TDP
65 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
April 2019
October 2015
Mean monothread perf.
66.74k points
50.1k points
Mean multithread perf.
229.2k points
205.89k 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
i3-9100
i7-6820HQ
Test#1 (Integers)
4.3k
3.18k (x0.74)
Test#2 (FP)
17.79k
13.02k (x0.73)
Test#3 (Generic, ZIP)
5.58k
4.17k (x0.75)
Test#1 (Memory)
8.86k
6.93k (x0.78)
TOTAL
36.53k
27.3k (x0.75)

Multithread

i3-9100

i7-6820HQ
Test#1 (Integers)
15.99k
13.26k (x0.83)
Test#2 (FP)
66.31k
62.23k (x0.94)
Test#3 (Generic, ZIP)
20.75k
20.34k (x0.98)
Test#1 (Memory)
4.44k
5.46k (x1.23)
TOTAL
107.49k
101.29k (x0.94)

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
i3-9100
i7-6820HQ
Test#1 (Integers)
15.53k
11.54k (x0.74)
Test#2 (FP)
22.21k
16.69k (x0.75)
Test#3 (Generic, ZIP)
5.79k
4.51k (x0.78)
Test#1 (Memory)
8.31k
7.27k (x0.88)
TOTAL
51.84k
40.01k (x0.77)

Multithread

i3-9100

i7-6820HQ
Test#1 (Integers)
58.56k
48.5k (x0.83)
Test#2 (FP)
86.17k
77.02k (x0.89)
Test#3 (Generic, ZIP)
22.4k
21.3k (x0.95)
Test#1 (Memory)
4.55k
5.24k (x1.15)
TOTAL
171.69k
152.06k (x0.89)

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
i3-9100
i7-6820HQ
Test#1 (Integers)
14.81k
11.78k (x0.8)
Test#2 (FP)
22.15k
18.06k (x0.82)
Test#3 (Generic, ZIP)
5.42k
4.48k (x0.83)
Test#1 (Memory)
4.8k
7.12k (x1.48)
TOTAL
47.17k
41.44k (x0.88)

Multithread

i3-9100

i7-6820HQ
Test#1 (Integers)
52.08k
49.46k (x0.95)
Test#2 (FP)
87.45k
84.8k (x0.97)
Test#3 (Generic, ZIP)
20.98k
20.7k (x0.99)
Test#1 (Memory)
4.24k
4.77k (x1.12)
TOTAL
164.75k
159.73k (x0.97)

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
i3-9100
i7-6820HQ
Test#1 (Integers)
28.03k
20.99k (x0.75)
Test#2 (FP)
24.5k
18.63k (x0.76)
Test#3 (Generic, ZIP)
5.73k
4.33k (x0.76)
Test#1 (Memory)
8.48k
6.15k (x0.73)
TOTAL
66.74k
50.1k (x0.75)

Multithread

i3-9100

i7-6820HQ
Test#1 (Integers)
107.5k
91.8k (x0.85)
Test#2 (FP)
95.11k
87.24k (x0.92)
Test#3 (Generic, ZIP)
22.02k
20.55k (x0.93)
Test#1 (Memory)
4.57k
6.3k (x1.38)
TOTAL
229.2k
205.89k (x0.9)

Performance/W
i3-9100
i7-6820HQ
Test#1 (Integers)
1654 points/W
2040 points/W
Test#2 (FP)
1463 points/W
1939 points/W
Test#3 (Generic, ZIP)
339 points/W
457 points/W
Test#1 (Memory)
70 points/W
140 points/W
TOTAL
3526 points/W
4575 points/W

Performance/GHz
i3-9100
i7-6820HQ
Test#1 (Integers)
6675 points/GHz
5831 points/GHz
Test#2 (FP)
5833 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1365 points/GHz
1204 points/GHz
Test#1 (Memory)
2018 points/GHz
1708 points/GHz
TOTAL
15891 points/GHz
13917 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