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Core i7-7020U vs i3-8100


Description
The i7-7020U is based on Kaby Lake architecture while the i3-8100 is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7020U gets a score of 73.1 k points while the i3-8100 gets 200.4 k points.

Summarizing, the i3-8100 is 2.7 times faster than the i7-7020U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ea
906eb
Core
Kaby Lake-U
Coffee Lake-S
Architecture
Base frecuency
2.3 GHz
3.6 GHz
Socket
BGA 1356
LGA 1151
Cores/Threads
2/4
4/4
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
April 2018
October 2017
Mean monothread perf.
33.63k points
59.18k points
Mean multithread perf.
73.15k points
200.4k 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
i7-7020U
i3-8100
Test#1 (Integers)
2.3k
3.72k (x1.62)
Test#2 (FP)
8.36k
15.33k (x1.83)
Test#3 (Generic, ZIP)
2.75k
4.71k (x1.71)
Test#1 (Memory)
4.64k
6.76k (x1.46)
TOTAL
18.04k
30.52k (x1.69)

Multithread

i7-7020U

i3-8100
Test#1 (Integers)
4.74k
14.48k (x3.05)
Test#2 (FP)
17.96k
59.59k (x3.32)
Test#3 (Generic, ZIP)
6.95k
18.07k (x2.6)
Test#1 (Memory)
4.95k
4.3k (x0.87)
TOTAL
34.61k
96.43k (x2.79)

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
i7-7020U
i3-8100
Test#1 (Integers)
8.18k
13.51k (x1.65)
Test#2 (FP)
11.67k
19.38k (x1.66)
Test#3 (Generic, ZIP)
2.97k
5.06k (x1.7)
Test#1 (Memory)
4.68k
7.87k (x1.68)
TOTAL
27.5k
45.81k (x1.67)

Multithread

i7-7020U

i3-8100
Test#1 (Integers)
17.51k
52.88k (x3.02)
Test#2 (FP)
27.61k
75.92k (x2.75)
Test#3 (Generic, ZIP)
7.39k
19.52k (x2.64)
Test#1 (Memory)
4.78k
4.53k (x0.95)
TOTAL
57.3k
152.86k (x2.67)

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
i7-7020U
i3-8100
Test#1 (Integers)
8.17k
13.52k (x1.66)
Test#2 (FP)
12.42k
20.57k (x1.66)
Test#3 (Generic, ZIP)
2.87k
4.96k (x1.73)
Test#1 (Memory)
4.68k
7.91k (x1.69)
TOTAL
28.13k
46.96k (x1.67)

Multithread

i7-7020U

i3-8100
Test#1 (Integers)
17.65k
53.4k (x3.03)
Test#2 (FP)
30.44k
80.87k (x2.66)
Test#3 (Generic, ZIP)
7.19k
19.03k (x2.65)
Test#1 (Memory)
4.79k
4.29k (x0.89)
TOTAL
60.07k
157.59k (x2.62)

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
i7-7020U
i3-8100
Test#1 (Integers)
14.25k
24.47k (x1.72)
Test#2 (FP)
12.72k
21.52k (x1.69)
Test#3 (Generic, ZIP)
2.81k
4.95k (x1.76)
Test#1 (Memory)
3.86k
8.24k (x2.13)
TOTAL
33.63k
59.18k (x1.76)

Multithread

i7-7020U

i3-8100
Test#1 (Integers)
31.11k
92.86k (x2.98)
Test#2 (FP)
31.15k
83.05k (x2.67)
Test#3 (Generic, ZIP)
6.9k
18.55k (x2.69)
Test#1 (Memory)
3.99k
5.93k (x1.49)
TOTAL
73.15k
200.4k (x2.74)

Performance/W
i7-7020U
i3-8100
Test#1 (Integers)
2074 points/W
1429 points/W
Test#2 (FP)
2076 points/W
1278 points/W
Test#3 (Generic, ZIP)
460 points/W
285 points/W
Test#1 (Memory)
266 points/W
91 points/W
TOTAL
4877 points/W
3083 points/W

Performance/GHz
i7-7020U
i3-8100
Test#1 (Integers)
6196 points/GHz
6797 points/GHz
Test#2 (FP)
5528 points/GHz
5977 points/GHz
Test#3 (Generic, ZIP)
1221 points/GHz
1374 points/GHz
Test#1 (Memory)
1679 points/GHz
2290 points/GHz
TOTAL
14624 points/GHz
16438 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