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Ryzen 9 3900 vs Ryzen 7 1700


Description
The 3900 is based on Zen 2 architecture while the 1700 is based on Zen.

Using the multithread performance as a reference, the 3900 gets a score of 687.5 k points while the 1700 gets 333.3 k points.

Summarizing, the 3900 is 2.1 times faster than the 1700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
800f11
Core
Matisse
Summit Ridge
Architecture
Base frecuency
3.1 GHz
3 GHz
Boost frecuency
4.3 GHz
3.7 GHz
Socket
AM4
AM4
Cores/Threads
12/24
8/16
TDP
65 W
65 W
Cache L1 (d+i)
12x32+12x32 kB
8x64+8x32 kB
Cache L2
12x512 kB
8x512 kB
Cache L3
4x16384 kB
2x8192 kB
Date
September 2019
March 2017
Mean monothread perf.
74.97k points
52.69k points
Mean multithread perf.
687.5k points
333.31k points

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
3900
1700
Test#1 (Integers)
16.16k
13.95k (x0.86)
Test#2 (FP)
23.75k
22.02k (x0.93)
Test#3 (Generic, ZIP)
9.32k
5.17k (x0.55)
Test#1 (Memory)
23.17k
16.61k (x0.72)
TOTAL
72.4k
57.75k (x0.8)

Multithread

3900

1700
Test#1 (Integers)
174.73k
120.59k (x0.69)
Test#2 (FP)
275.63k
197.34k (x0.72)
Test#3 (Generic, ZIP)
125.65k
56.83k (x0.45)
Test#1 (Memory)
44.17k
6.41k (x0.15)
TOTAL
620.18k
381.16k (x0.61)

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
3900
1700
Test#1 (Integers)
16.85k
12.65k (x0.75)
Test#2 (FP)
26.03k
20.95k (x0.8)
Test#3 (Generic, ZIP)
9.54k
4.63k (x0.49)
Test#1 (Memory)
22.55k
14.47k (x0.64)
TOTAL
74.97k
52.69k (x0.7)

Multithread

3900

1700
Test#1 (Integers)
229.41k
101.78k (x0.44)
Test#2 (FP)
292.81k
177.57k (x0.61)
Test#3 (Generic, ZIP)
128.48k
47.18k (x0.37)
Test#1 (Memory)
36.8k
6.78k (x0.18)
TOTAL
687.5k
333.31k (x0.48)

Performance/W
3900
1700
Test#1 (Integers)
3529 points/W
1566 points/W
Test#2 (FP)
4505 points/W
2732 points/W
Test#3 (Generic, ZIP)
1977 points/W
726 points/W
Test#1 (Memory)
566 points/W
104 points/W
TOTAL
10577 points/W
5128 points/W

Performance/GHz
3900
1700
Test#1 (Integers)
3920 points/GHz
3419 points/GHz
Test#2 (FP)
6054 points/GHz
5661 points/GHz
Test#3 (Generic, ZIP)
2218 points/GHz
1251 points/GHz
Test#1 (Memory)
5243 points/GHz
3911 points/GHz
TOTAL
17435 points/GHz
14241 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