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Ryzen 9 3900X vs Core i7-11700


Description
The 3900X is based on Zen 2 architecture while the i7-11700 is based on Rocket Lake.

Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the i7-11700 gets 729 k points.

Summarizing, the 3900X is 1 times faster than the i7-11700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
a0671
Core
Matisse
Rocket Lake-S
Architecture
Base frecuency
3.8 GHz
2.5 GHz
Boost frecuency
4.6 GHz
4.9 GHz
Socket
AM4
LGA 1200
Cores/Threads
12/24
8/16
TDP
105 W
65 W
Cache L1 (d+i)
12x32+12x32 kB
8x32+8x48 kB
Cache L2
12x512 kB
8x512 kB
Cache L3
4x16384 kB
16384 kB
Date
July 2019
March 2021
Mean monothread perf.
72.51k points
98.87k points
Mean multithread perf.
756.3k points
728.98k 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
3900X
i7-11700
Test#1 (Integers)
4.46k
5.48k (x1.23)
Test#2 (FP)
18.46k
20.99k (x1.14)
Test#3 (Generic, ZIP)
8.05k
12.58k (x1.56)
Test#1 (Memory)
23.71k
21.24k (x0.9)
TOTAL
54.68k
60.28k (x1.1)

Multithread

3900X

i7-11700
Test#1 (Integers)
52.65k
44.15k (x0.84)
Test#2 (FP)
265.41k
196.6k (x0.74)
Test#3 (Generic, ZIP)
140.78k
102.57k (x0.73)
Test#1 (Memory)
46.91k
10.64k (x0.23)
TOTAL
505.76k
353.96k (x0.7)

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
3900X
i7-11700
Test#1 (Integers)
17.35k
18.05k (x1.04)
Test#2 (FP)
25.87k
26.13k (x1.01)
Test#3 (Generic, ZIP)
8.72k
13.92k (x1.6)
Test#1 (Memory)
27.86k
21.22k (x0.76)
TOTAL
79.8k
79.32k (x0.99)

Multithread

3900X

i7-11700
Test#1 (Integers)
201.57k
160.49k (x0.8)
Test#2 (FP)
284.41k
225.25k (x0.79)
Test#3 (Generic, ZIP)
145.16k
113.88k (x0.78)
Test#1 (Memory)
100.56k
10.64k (x0.11)
TOTAL
731.7k
510.25k (x0.7)

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
3900X
i7-11700
Test#1 (Integers)
16.95k
18.96k (x1.12)
Test#2 (FP)
25.37k
28.34k (x1.12)
Test#3 (Generic, ZIP)
9.23k
13.26k (x1.44)
Test#1 (Memory)
24.83k
20.2k (x0.81)
TOTAL
76.38k
80.76k (x1.06)

Multithread

3900X

i7-11700
Test#1 (Integers)
196.31k
164.31k (x0.84)
Test#2 (FP)
290.5k
253.96k (x0.87)
Test#3 (Generic, ZIP)
143.95k
115.28k (x0.8)
Test#1 (Memory)
64.92k
10.65k (x0.16)
TOTAL
695.69k
544.2k (x0.78)

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
i7-11700
Test#1 (Integers)
16.73k
35.12k (x2.1)
Test#2 (FP)
24.74k
29.24k (x1.18)
Test#3 (Generic, ZIP)
8.82k
12.56k (x1.42)
Test#1 (Memory)
22.22k
21.95k (x0.99)
TOTAL
72.51k
98.87k (x1.36)

Multithread

3900X

i7-11700
Test#1 (Integers)
248.24k
304k (x1.22)
Test#2 (FP)
309.66k
304.7k (x0.98)
Test#3 (Generic, ZIP)
140.01k
109.64k (x0.78)
Test#1 (Memory)
58.39k
10.64k (x0.18)
TOTAL
756.3k
728.98k (x0.96)

Performance/W
3900X
i7-11700
Test#1 (Integers)
2364 points/W
4677 points/W
Test#2 (FP)
2949 points/W
4688 points/W
Test#3 (Generic, ZIP)
1333 points/W
1687 points/W
Test#1 (Memory)
556 points/W
164 points/W
TOTAL
7203 points/W
11215 points/W

Performance/GHz
3900X
i7-11700
Test#1 (Integers)
3638 points/GHz
7168 points/GHz
Test#2 (FP)
5377 points/GHz
5967 points/GHz
Test#3 (Generic, ZIP)
1917 points/GHz
2563 points/GHz
Test#1 (Memory)
4831 points/GHz
4479 points/GHz
TOTAL
15763 points/GHz
20177 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