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Ryzen 9 3900X vs Ryzen 7 PRO 4750GE


Description
Both models 3900X and 4750GE are based on Zen 2 architecture.

Zen 2 is fabricated on the 7nm process from TSMC and it’s the third generation of Zen CPUs. It comes with 64kB of L1 cache and 512kB of L2 cache per core. Zen 2 CPUs are divided into 3 categories: Matisse (desktop), Rome (Server) and Castle Peak (high-end desktop).

Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the 4750GE gets 469.7 k points.

Summarizing, the 3900X is 1.6 times faster than the 4750GE. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
860f01
Core
Matisse
Renoir
Architecture
Base frecuency
3.8 GHz
3.1 GHz
Boost frecuency
4.6 GHz
4.3 GHz
Socket
AM4
AM4
Cores/Threads
12/24
8/16
TDP
105 W
35 W
Cache L1 (d+i)
12x32+12x32 kB
8x32+8x32 kB
Cache L2
12x512 kB
8x512 kB
Cache L3
4x16384 kB
2x4096 kB
Date
July 2019
July 2020
Mean monothread perf.
72.51k points
60.99k points
Mean multithread perf.
756.3k points
469.67k points

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
3900X
4750GE
Test#1 (Integers)
16.73k
16.95k (x1.01)
Test#2 (FP)
24.74k
26.26k (x1.06)
Test#3 (Generic, ZIP)
8.82k
9.4k (x1.07)
Test#1 (Memory)
22.22k
8.38k (x0.38)
TOTAL
72.51k
60.99k (x0.84)

Multithread

3900X

4750GE
Test#1 (Integers)
248.24k
159.87k (x0.64)
Test#2 (FP)
309.66k
215.44k (x0.7)
Test#3 (Generic, ZIP)
140.01k
88.45k (x0.63)
Test#1 (Memory)
58.39k
5.9k (x0.1)
TOTAL
756.3k
469.67k (x0.62)

Performance/W
3900X
4750GE
Test#1 (Integers)
2364 points/W
4568 points/W
Test#2 (FP)
2949 points/W
6155 points/W
Test#3 (Generic, ZIP)
1333 points/W
2527 points/W
Test#1 (Memory)
556 points/W
169 points/W
TOTAL
7203 points/W
13419 points/W

Performance/GHz
3900X
4750GE
Test#1 (Integers)
3638 points/GHz
3942 points/GHz
Test#2 (FP)
5377 points/GHz
6107 points/GHz
Test#3 (Generic, ZIP)
1917 points/GHz
2185 points/GHz
Test#1 (Memory)
4831 points/GHz
1950 points/GHz
TOTAL
15763 points/GHz
14184 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