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Core i3-7100 vs Ryzen 9 3900X


Description
The i3-7100 is based on Kaby Lake architecture while the 3900X is based on Zen 2.

Using the multithread performance as a reference, the i3-7100 gets a score of 124.8 k points while the 3900X gets 756.3 k points.

Summarizing, the 3900X is 6.1 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
870f10
Core
Kaby Lake-S
Matisse
Architecture
Base frecuency
3.9 GHz
3.8 GHz
Boost frecuency
3.9 GHz
4.6 GHz
Socket
LGA 1151
AM4
Cores/Threads
2/4
12/24
TDP
51 W
105 W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
2x256 kB
12x512 kB
Cache L3
3072 kB
4x16384 kB
Date
January 2017
July 2019
Mean monothread perf.
57.86k points
72.51k points
Mean multithread perf.
124.8k points
756.3k 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
i3-7100
3900X
Test#1 (Integers)
4.01k
4.46k (x1.11)
Test#2 (FP)
16.38k
18.46k (x1.13)
Test#3 (Generic, ZIP)
5.31k
8.05k (x1.52)
Test#1 (Memory)
3.98k
23.71k (x5.95)
TOTAL
29.69k
54.68k (x1.84)

Multithread

i3-7100

3900X
Test#1 (Integers)
8.1k
52.65k (x6.5)
Test#2 (FP)
38.7k
265.41k (x6.86)
Test#3 (Generic, ZIP)
12.69k
140.78k (x11.1)
Test#1 (Memory)
3.76k
46.91k (x12.49)
TOTAL
63.24k
505.76k (x8)

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
i3-7100
3900X
Test#1 (Integers)
14.04k
17.35k (x1.24)
Test#2 (FP)
20.55k
25.87k (x1.26)
Test#3 (Generic, ZIP)
5.41k
8.72k (x1.61)
Test#1 (Memory)
3.99k
27.86k (x6.97)
TOTAL
43.99k
79.8k (x1.81)

Multithread

i3-7100

3900X
Test#1 (Integers)
30.09k
201.57k (x6.7)
Test#2 (FP)
47.84k
284.41k (x5.94)
Test#3 (Generic, ZIP)
13.13k
145.16k (x11.05)
Test#1 (Memory)
3.52k
100.56k (x28.58)
TOTAL
94.59k
731.7k (x7.74)

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
i3-7100
3900X
Test#1 (Integers)
14.41k
16.95k (x1.18)
Test#2 (FP)
22.38k
25.37k (x1.13)
Test#3 (Generic, ZIP)
5.45k
9.23k (x1.69)
Test#1 (Memory)
4.96k
24.83k (x5)
TOTAL
47.21k
76.38k (x1.62)

Multithread

i3-7100

3900X
Test#1 (Integers)
30.48k
196.31k (x6.44)
Test#2 (FP)
52.08k
290.5k (x5.58)
Test#3 (Generic, ZIP)
12.97k
143.95k (x11.1)
Test#1 (Memory)
4.56k
64.92k (x14.23)
TOTAL
100.1k
695.69k (x6.95)

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
i3-7100
3900X
Test#1 (Integers)
25.53k
16.73k (x0.66)
Test#2 (FP)
22.98k
24.74k (x1.08)
Test#3 (Generic, ZIP)
5.37k
8.82k (x1.64)
Test#1 (Memory)
3.97k
22.22k (x5.59)
TOTAL
57.86k
72.51k (x1.25)

Multithread

i3-7100

3900X
Test#1 (Integers)
54.73k
248.24k (x4.54)
Test#2 (FP)
53.55k
309.66k (x5.78)
Test#3 (Generic, ZIP)
12.93k
140.01k (x10.83)
Test#1 (Memory)
3.6k
58.39k (x16.24)
TOTAL
124.8k
756.3k (x6.06)

Performance/W
i3-7100
3900X
Test#1 (Integers)
1073 points/W
2364 points/W
Test#2 (FP)
1050 points/W
2949 points/W
Test#3 (Generic, ZIP)
254 points/W
1333 points/W
Test#1 (Memory)
71 points/W
556 points/W
TOTAL
2447 points/W
7203 points/W

Performance/GHz
i3-7100
3900X
Test#1 (Integers)
6547 points/GHz
3638 points/GHz
Test#2 (FP)
5893 points/GHz
5377 points/GHz
Test#3 (Generic, ZIP)
1377 points/GHz
1917 points/GHz
Test#1 (Memory)
1019 points/GHz
4831 points/GHz
TOTAL
14836 points/GHz
15763 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