Ryzen 9 3900 vs Core i7-8700k
Description
The 3900 is based on Zen 2 architecture while the i7-8700k is based on Coffee Lake.
Using the multithread performance as a reference, the 3900 gets a score of 687.5 k points while the i7-8700k gets 443.8 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 3900 gets a score of 687.5 k points while the i7-8700k gets 443.8 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
870f10
906ea
Core
Matisse
Coffee Lake-S
Base frecuency
3.1 GHz
3.7 GHz
Boost frecuency
4.3 GHz
4.7 GHz
Socket
AM4
LGA 1151
Cores/Threads
12/24
6/12
TDP
65 W
95 W
Cache L1 (d+i)
12x32+12x32 kB
6x32+6x32 kB
Cache L2
12x512 kB
6x256 kB
Cache L3
4x16384 kB
12288 kB
Date
September 2019
October 2017
Mean monothread perf.
74.97k points
80.6k points
Mean multithread perf.
687.5k points
443.77k 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
3900
i7-8700k
Test#1 (Integers)
4.39k
4.13k (x0.94)
Test#2 (FP)
16.99k
16.96k (x1)
Test#3 (Generic, ZIP)
7.74k
5.56k (x0.72)
Test#1 (Memory)
24.57k
12.85k (x0.52)
TOTAL
53.69k
39.5k (x0.74)
Multithread
3900
i7-8700k
Test#1 (Integers)
48.45k
24.01k (x0.5)
Test#2 (FP)
230.81k
108.69k (x0.47)
Test#3 (Generic, ZIP)
122.82k
36.62k (x0.3)
Test#1 (Memory)
54.73k
9.33k (x0.17)
TOTAL
456.8k
178.64k (x0.39)
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
3900
i7-8700k
Test#1 (Integers)
16.59k
12.92k (x0.78)
Test#2 (FP)
24.55k
20.68k (x0.84)
Test#3 (Generic, ZIP)
8.55k
5.3k (x0.62)
Test#1 (Memory)
26.28k
12.59k (x0.48)
TOTAL
75.97k
51.48k (x0.68)
Multithread
3900
i7-8700k
Test#1 (Integers)
181.33k
94.26k (x0.52)
Test#2 (FP)
261.01k
152.55k (x0.58)
Test#3 (Generic, ZIP)
126.62k
39.74k (x0.31)
Test#1 (Memory)
66.64k
8.53k (x0.13)
TOTAL
635.6k
295.07k (x0.46)
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
3900
i7-8700k
Test#1 (Integers)
16.16k
16.87k (x1.04)
Test#2 (FP)
23.75k
26.12k (x1.1)
Test#3 (Generic, ZIP)
9.32k
6.33k (x0.68)
Test#1 (Memory)
23.17k
13.71k (x0.59)
TOTAL
72.4k
63.03k (x0.87)
Multithread
3900
i7-8700k
Test#1 (Integers)
174.73k
105.74k (x0.61)
Test#2 (FP)
275.63k
180.52k (x0.65)
Test#3 (Generic, ZIP)
125.65k
44.99k (x0.36)
Test#1 (Memory)
44.17k
8.51k (x0.19)
TOTAL
620.18k
339.77k (x0.55)
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
3900
i7-8700k
Test#1 (Integers)
16.85k
31.2k (x1.85)
Test#2 (FP)
26.03k
27.82k (x1.07)
Test#3 (Generic, ZIP)
9.54k
6.57k (x0.69)
Test#1 (Memory)
22.55k
15k (x0.67)
TOTAL
74.97k
80.6k (x1.08)
Multithread
3900
i7-8700k
Test#1 (Integers)
229.41k
202.42k (x0.88)
Test#2 (FP)
292.81k
186.33k (x0.64)
Test#3 (Generic, ZIP)
128.48k
44.96k (x0.35)
Test#1 (Memory)
36.8k
10.05k (x0.27)
TOTAL
687.5k
443.77k (x0.65)
Performance/W
3900
i7-8700k
Test#1 (Integers)
3529 points/W
2131 points/W
Test#2 (FP)
4505 points/W
1961 points/W
Test#3 (Generic, ZIP)
1977 points/W
473 points/W
Test#1 (Memory)
566 points/W
106 points/W
TOTAL
10577 points/W
4671 points/W
Performance/GHz
3900
i7-8700k
Test#1 (Integers)
3920 points/GHz
6639 points/GHz
Test#2 (FP)
6054 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
2218 points/GHz
1397 points/GHz
Test#1 (Memory)
5243 points/GHz
3192 points/GHz
TOTAL
17435 points/GHz
17148 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