Core i7-8700k vs Ryzen 9 3900
Description
The i7-8700k is based on Coffee Lake architecture while the 3900 is based on Zen 2.
Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the 3900 gets 687.5 k points.
Summarizing, the 3900 is 1.5 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the 3900 gets 687.5 k points.
Summarizing, the 3900 is 1.5 times faster than the i7-8700k. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
870f10
Core
Coffee Lake-S
Matisse
Base frecuency
3.7 GHz
3.1 GHz
Boost frecuency
4.7 GHz
4.3 GHz
Socket
LGA 1151
AM4
Cores/Threads
6/12
12/24
TDP
95 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
12x32+12x32 kB
Cache L2
6x256 kB
12x512 kB
Cache L3
12288 kB
4x16384 kB
Date
October 2017
September 2019
Mean monothread perf.
80.6k points
74.97k points
Mean multithread perf.
443.77k points
687.5k 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
i7-8700k
3900
Test#1 (Integers)
4.13k
4.39k (x1.06)
Test#2 (FP)
16.96k
16.99k (x1)
Test#3 (Generic, ZIP)
5.56k
7.74k (x1.39)
Test#1 (Memory)
12.85k
24.57k (x1.91)
TOTAL
39.5k
53.69k (x1.36)
Multithread
i7-8700k
3900
Test#1 (Integers)
24.01k
48.45k (x2.02)
Test#2 (FP)
108.69k
230.81k (x2.12)
Test#3 (Generic, ZIP)
36.62k
122.82k (x3.35)
Test#1 (Memory)
9.33k
54.73k (x5.87)
TOTAL
178.64k
456.8k (x2.56)
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
i7-8700k
3900
Test#1 (Integers)
12.92k
16.59k (x1.28)
Test#2 (FP)
20.68k
24.55k (x1.19)
Test#3 (Generic, ZIP)
5.3k
8.55k (x1.61)
Test#1 (Memory)
12.59k
26.28k (x2.09)
TOTAL
51.48k
75.97k (x1.48)
Multithread
i7-8700k
3900
Test#1 (Integers)
94.26k
181.33k (x1.92)
Test#2 (FP)
152.55k
261.01k (x1.71)
Test#3 (Generic, ZIP)
39.74k
126.62k (x3.19)
Test#1 (Memory)
8.53k
66.64k (x7.81)
TOTAL
295.07k
635.6k (x2.15)
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
i7-8700k
3900
Test#1 (Integers)
16.87k
16.16k (x0.96)
Test#2 (FP)
26.12k
23.75k (x0.91)
Test#3 (Generic, ZIP)
6.33k
9.32k (x1.47)
Test#1 (Memory)
13.71k
23.17k (x1.69)
TOTAL
63.03k
72.4k (x1.15)
Multithread
i7-8700k
3900
Test#1 (Integers)
105.74k
174.73k (x1.65)
Test#2 (FP)
180.52k
275.63k (x1.53)
Test#3 (Generic, ZIP)
44.99k
125.65k (x2.79)
Test#1 (Memory)
8.51k
44.17k (x5.19)
TOTAL
339.77k
620.18k (x1.83)
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
i7-8700k
3900
Test#1 (Integers)
31.2k
16.85k (x0.54)
Test#2 (FP)
27.82k
26.03k (x0.94)
Test#3 (Generic, ZIP)
6.57k
9.54k (x1.45)
Test#1 (Memory)
15k
22.55k (x1.5)
TOTAL
80.6k
74.97k (x0.93)
Multithread
i7-8700k
3900
Test#1 (Integers)
202.42k
229.41k (x1.13)
Test#2 (FP)
186.33k
292.81k (x1.57)
Test#3 (Generic, ZIP)
44.96k
128.48k (x2.86)
Test#1 (Memory)
10.05k
36.8k (x3.66)
TOTAL
443.77k
687.5k (x1.55)
Performance/W
i7-8700k
3900
Test#1 (Integers)
2131 points/W
3529 points/W
Test#2 (FP)
1961 points/W
4505 points/W
Test#3 (Generic, ZIP)
473 points/W
1977 points/W
Test#1 (Memory)
106 points/W
566 points/W
TOTAL
4671 points/W
10577 points/W
Performance/GHz
i7-8700k
3900
Test#1 (Integers)
6639 points/GHz
3920 points/GHz
Test#2 (FP)
5919 points/GHz
6054 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
2218 points/GHz
Test#1 (Memory)
3192 points/GHz
5243 points/GHz
TOTAL
17148 points/GHz
17435 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