| | | | | | |

Core i7-8700 vs Ryzen 9 3900


Description
The i7-8700 is based on Coffee Lake architecture while the 3900 is based on Zen 2.

Using the multithread performance as a reference, the i7-8700 gets a score of 389 k points while the 3900 gets 687.5 k points.

Summarizing, the 3900 is 1.8 times faster than the i7-8700. 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
Architecture
Base frecuency
3.2 GHz
3.1 GHz
Boost frecuency
4.6 GHz
4.3 GHz
Socket
LGA 1151
AM4
Cores/Threads
6/12
12/24
TDP
65 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.
75.01k points
74.97k points
Mean multithread perf.
388.95k 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
i7-8700
3900
Test#1 (Integers)
4.48k
4.39k (x0.98)
Test#2 (FP)
18.31k
16.99k (x0.93)
Test#3 (Generic, ZIP)
5.88k
7.74k (x1.32)
Test#1 (Memory)
13.45k
24.57k (x1.83)
TOTAL
42.12k
53.69k (x1.27)

Multithread

i7-8700

3900
Test#1 (Integers)
27.35k
48.45k (x1.77)
Test#2 (FP)
124.94k
230.81k (x1.85)
Test#3 (Generic, ZIP)
43.23k
122.82k (x2.84)
Test#1 (Memory)
7.08k
54.73k (x7.73)
TOTAL
202.61k
456.8k (x2.25)

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
i7-8700
3900
Test#1 (Integers)
16.45k
16.59k (x1.01)
Test#2 (FP)
23.74k
24.55k (x1.03)
Test#3 (Generic, ZIP)
6.24k
8.55k (x1.37)
Test#1 (Memory)
13.43k
26.28k (x1.96)
TOTAL
59.86k
75.97k (x1.27)

Multithread

i7-8700

3900
Test#1 (Integers)
100.94k
181.33k (x1.8)
Test#2 (FP)
159.09k
261.01k (x1.64)
Test#3 (Generic, ZIP)
43.61k
126.62k (x2.9)
Test#1 (Memory)
6.59k
66.64k (x10.11)
TOTAL
310.23k
635.6k (x2.05)

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
i7-8700
3900
Test#1 (Integers)
16.57k
16.16k (x0.97)
Test#2 (FP)
25.52k
23.75k (x0.93)
Test#3 (Generic, ZIP)
6.01k
9.32k (x1.55)
Test#1 (Memory)
12.82k
23.17k (x1.81)
TOTAL
60.92k
72.4k (x1.19)

Multithread

i7-8700

3900
Test#1 (Integers)
101.85k
174.73k (x1.72)
Test#2 (FP)
170.31k
275.63k (x1.62)
Test#3 (Generic, ZIP)
43.12k
125.65k (x2.91)
Test#1 (Memory)
7.11k
44.17k (x6.21)
TOTAL
322.39k
620.18k (x1.92)

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
i7-8700
3900
Test#1 (Integers)
29.25k
16.85k (x0.58)
Test#2 (FP)
25.98k
26.03k (x1)
Test#3 (Generic, ZIP)
6.05k
9.54k (x1.58)
Test#1 (Memory)
13.74k
22.55k (x1.64)
TOTAL
75.01k
74.97k (x1)

Multithread

i7-8700

3900
Test#1 (Integers)
182.56k
229.41k (x1.26)
Test#2 (FP)
159.9k
292.81k (x1.83)
Test#3 (Generic, ZIP)
38.18k
128.48k (x3.36)
Test#1 (Memory)
8.31k
36.8k (x4.43)
TOTAL
388.95k
687.5k (x1.77)

Performance/W
i7-8700
3900
Test#1 (Integers)
2809 points/W
3529 points/W
Test#2 (FP)
2460 points/W
4505 points/W
Test#3 (Generic, ZIP)
587 points/W
1977 points/W
Test#1 (Memory)
128 points/W
566 points/W
TOTAL
5984 points/W
10577 points/W

Performance/GHz
i7-8700
3900
Test#1 (Integers)
6358 points/GHz
3920 points/GHz
Test#2 (FP)
5647 points/GHz
6054 points/GHz
Test#3 (Generic, ZIP)
1316 points/GHz
2218 points/GHz
Test#1 (Memory)
2986 points/GHz
5243 points/GHz
TOTAL
16307 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.


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