Core i7-7700K vs Ryzen 9 3900X
Description
The i7-7700K is based on Kaby Lake architecture while the 3900X is based on Zen 2.
Using the multithread performance as a reference, the i7-7700K gets a score of 289.9 k points while the 3900X gets 756.3 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 i7-7700K gets a score of 289.9 k points while the 3900X gets 756.3 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
906e9
870f10
Core
Kaby Lake-S
Matisse
Base frecuency
4.2 GHz
3.8 GHz
Boost frecuency
4.5 GHz
4.6 GHz
Socket
LGA 1151
AM4
Cores/Threads
4/8
12/24
TDP
95 W
105 W
Cache L1 (d+i)
32+32 kB
12x32+12x32 kB
Cache L2
256 kB
12x512 kB
Cache L3
8192 kB
4x16384 kB
Date
September 2016
July 2019
Mean monothread perf.
76.98k points
72.51k points
Mean multithread perf.
289.9k 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
i7-7700K
3900X
Test#1 (Integers)
4.63k
4.46k (x0.96)
Test#2 (FP)
18.92k
18.46k (x0.98)
Test#3 (Generic, ZIP)
6.22k
8.05k (x1.29)
Test#1 (Memory)
13.92k
23.71k (x1.7)
TOTAL
43.7k
54.68k (x1.25)
Multithread
i7-7700K
3900X
Test#1 (Integers)
18.53k
52.65k (x2.84)
Test#2 (FP)
86.49k
265.41k (x3.07)
Test#3 (Generic, ZIP)
28.78k
140.78k (x4.89)
Test#1 (Memory)
9.67k
46.91k (x4.85)
TOTAL
143.47k
505.76k (x3.53)
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
i7-7700K
3900X
Test#1 (Integers)
17.55k
16.95k (x0.97)
Test#2 (FP)
27.82k
25.37k (x0.91)
Test#3 (Generic, ZIP)
6.8k
9.23k (x1.36)
Test#1 (Memory)
14.83k
24.83k (x1.67)
TOTAL
67k
76.38k (x1.14)
Multithread
i7-7700K
3900X
Test#1 (Integers)
68.4k
196.31k (x2.87)
Test#2 (FP)
118.8k
290.5k (x2.45)
Test#3 (Generic, ZIP)
33.34k
143.95k (x4.32)
Test#1 (Memory)
17.43k
64.92k (x3.72)
TOTAL
237.97k
695.69k (x2.92)
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
i7-7700K
3900X
Test#1 (Integers)
30.47k
16.73k (x0.55)
Test#2 (FP)
26.94k
24.74k (x0.92)
Test#3 (Generic, ZIP)
6.25k
8.82k (x1.41)
Test#1 (Memory)
13.32k
22.22k (x1.67)
TOTAL
76.98k
72.51k (x0.94)
Multithread
i7-7700K
3900X
Test#1 (Integers)
127.81k
248.24k (x1.94)
Test#2 (FP)
123.7k
309.66k (x2.5)
Test#3 (Generic, ZIP)
29.34k
140.01k (x4.77)
Test#1 (Memory)
9.05k
58.39k (x6.45)
TOTAL
289.9k
756.3k (x2.61)
Performance/W
i7-7700K
3900X
Test#1 (Integers)
1345 points/W
2364 points/W
Test#2 (FP)
1302 points/W
2949 points/W
Test#3 (Generic, ZIP)
309 points/W
1333 points/W
Test#1 (Memory)
95 points/W
556 points/W
TOTAL
3052 points/W
7203 points/W
Performance/GHz
i7-7700K
3900X
Test#1 (Integers)
6770 points/GHz
3638 points/GHz
Test#2 (FP)
5987 points/GHz
5377 points/GHz
Test#3 (Generic, ZIP)
1389 points/GHz
1917 points/GHz
Test#1 (Memory)
2960 points/GHz
4831 points/GHz
TOTAL
17106 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.
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