Ryzen 9 3900X vs Core i7-7700K
Description
The 3900X is based on Zen 2 architecture while the i7-7700K is based on Kaby Lake.
Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the i7-7700K gets 289.8 k points.
Summarizing, the 3900X is 2.6 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the i7-7700K gets 289.8 k points.
Summarizing, the 3900X is 2.6 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
870f10
906e9
Core
Matisse
Kaby Lake-S
Base frecuency
3.8 GHz
4.2 GHz
Boost frecuency
4.6 GHz
4.5 GHz
Socket
AM4
LGA 1151
Cores/Threads
12/24
4/8
TDP
105 W
95 W
Cache L1 (d+i)
12x32+12x32 kB
32+32 kB
Cache L2
12x512 kB
256 kB
Cache L3
4x16384 kB
8192 kB
Date
July 2019
September 2016
Mean monothread perf.
72.51k points
76.9k points
Mean multithread perf.
756.3k points
289.82k 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
i7-7700K
Test#1 (Integers)
4.46k
4.63k (x1.04)
Test#2 (FP)
18.46k
18.92k (x1.02)
Test#3 (Generic, ZIP)
8.05k
6.22k (x0.77)
Test#1 (Memory)
23.71k
13.92k (x0.59)
TOTAL
54.68k
43.7k (x0.8)
Multithread
3900X
i7-7700K
Test#1 (Integers)
52.65k
18.53k (x0.35)
Test#2 (FP)
265.41k
86.49k (x0.33)
Test#3 (Generic, ZIP)
140.78k
28.78k (x0.2)
Test#1 (Memory)
46.91k
9.67k (x0.21)
TOTAL
505.76k
143.47k (x0.28)
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
i7-7700K
Test#1 (Integers)
16.95k
17.55k (x1.04)
Test#2 (FP)
25.37k
27.82k (x1.1)
Test#3 (Generic, ZIP)
9.23k
6.8k (x0.74)
Test#1 (Memory)
24.83k
14.83k (x0.6)
TOTAL
76.38k
67k (x0.88)
Multithread
3900X
i7-7700K
Test#1 (Integers)
196.31k
68.4k (x0.35)
Test#2 (FP)
290.5k
118.8k (x0.41)
Test#3 (Generic, ZIP)
143.95k
33.34k (x0.23)
Test#1 (Memory)
64.92k
17.43k (x0.27)
TOTAL
695.69k
237.97k (x0.34)
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
i7-7700K
Test#1 (Integers)
16.73k
30.44k (x1.82)
Test#2 (FP)
24.74k
26.91k (x1.09)
Test#3 (Generic, ZIP)
8.82k
6.25k (x0.71)
Test#1 (Memory)
22.22k
13.3k (x0.6)
TOTAL
72.51k
76.9k (x1.06)
Multithread
3900X
i7-7700K
Test#1 (Integers)
248.24k
127.73k (x0.51)
Test#2 (FP)
309.66k
123.68k (x0.4)
Test#3 (Generic, ZIP)
140.01k
29.34k (x0.21)
Test#1 (Memory)
58.39k
9.08k (x0.16)
TOTAL
756.3k
289.82k (x0.38)
Performance/W
3900X
i7-7700K
Test#1 (Integers)
2364 points/W
1345 points/W
Test#2 (FP)
2949 points/W
1302 points/W
Test#3 (Generic, ZIP)
1333 points/W
309 points/W
Test#1 (Memory)
556 points/W
96 points/W
TOTAL
7203 points/W
3051 points/W
Performance/GHz
3900X
i7-7700K
Test#1 (Integers)
3638 points/GHz
6765 points/GHz
Test#2 (FP)
5377 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
1917 points/GHz
1388 points/GHz
Test#1 (Memory)
4831 points/GHz
2955 points/GHz
TOTAL
15763 points/GHz
17089 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4