| | | | | | |

Core i7-8700k vs Ryzen 7 5800X


Description
The i7-8700k is based on Coffee Lake architecture while the 5800X is based on Zen 3.

Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the 5800X gets 558.4 k points.

Summarizing, the 5800X is 1.3 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
a20f12
Core
Coffee Lake-S
Vermeer
Architecture
Base frecuency
3.7 GHz
3.8 GHz
Boost frecuency
4.7 GHz
4.7 GHz
Socket
LGA 1151
AM4
Cores/Threads
6/12
8/16
TDP
95 W
105 W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x32 kB
Cache L2
6x256 kB
8x512 kB
Cache L3
12288 kB
32768 kB
Date
October 2017
November 2020
Mean monothread perf.
80.6k points
89.53k points
Mean multithread perf.
443.77k points
558.41k 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
5800X
Test#1 (Integers)
4.13k
4.98k (x1.21)
Test#2 (FP)
16.96k
20.57k (x1.21)
Test#3 (Generic, ZIP)
5.56k
12.22k (x2.2)
Test#1 (Memory)
12.85k
28.62k (x2.23)
TOTAL
39.5k
66.39k (x1.68)

Multithread

i7-8700k

5800X
Test#1 (Integers)
24.01k
35.09k (x1.46)
Test#2 (FP)
108.69k
171.84k (x1.58)
Test#3 (Generic, ZIP)
36.62k
107.67k (x2.94)
Test#1 (Memory)
9.33k
10.83k (x1.16)
TOTAL
178.64k
325.43k (x1.82)

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
5800X
Test#1 (Integers)
12.92k
18.06k (x1.4)
Test#2 (FP)
20.68k
25k (x1.21)
Test#3 (Generic, ZIP)
5.3k
12.8k (x2.42)
Test#1 (Memory)
12.59k
29.51k (x2.34)
TOTAL
51.48k
85.37k (x1.66)

Multithread

i7-8700k

5800X
Test#1 (Integers)
94.26k
125.71k (x1.33)
Test#2 (FP)
152.55k
196.66k (x1.29)
Test#3 (Generic, ZIP)
39.74k
113.22k (x2.85)
Test#1 (Memory)
8.53k
9.92k (x1.16)
TOTAL
295.07k
445.51k (x1.51)

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
5800X
Test#1 (Integers)
16.87k
18.1k (x1.07)
Test#2 (FP)
26.12k
26.41k (x1.01)
Test#3 (Generic, ZIP)
6.33k
12.39k (x1.96)
Test#1 (Memory)
13.71k
26.06k (x1.9)
TOTAL
63.03k
82.95k (x1.32)

Multithread

i7-8700k

5800X
Test#1 (Integers)
105.74k
125.9k (x1.19)
Test#2 (FP)
180.52k
233.26k (x1.29)
Test#3 (Generic, ZIP)
44.99k
109.66k (x2.44)
Test#1 (Memory)
8.51k
10.21k (x1.2)
TOTAL
339.77k
479.02k (x1.41)

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
5800X
Test#1 (Integers)
31.2k
24.3k (x0.78)
Test#2 (FP)
27.82k
26.46k (x0.95)
Test#3 (Generic, ZIP)
6.57k
12.18k (x1.86)
Test#1 (Memory)
15k
26.58k (x1.77)
TOTAL
80.6k
89.53k (x1.11)

Multithread

i7-8700k

5800X
Test#1 (Integers)
202.42k
187.4k (x0.93)
Test#2 (FP)
186.33k
246.12k (x1.32)
Test#3 (Generic, ZIP)
44.96k
113.16k (x2.52)
Test#1 (Memory)
10.05k
11.74k (x1.17)
TOTAL
443.77k
558.41k (x1.26)

Performance/W
i7-8700k
5800X
Test#1 (Integers)
2131 points/W
1785 points/W
Test#2 (FP)
1961 points/W
2344 points/W
Test#3 (Generic, ZIP)
473 points/W
1078 points/W
Test#1 (Memory)
106 points/W
112 points/W
TOTAL
4671 points/W
5318 points/W

Performance/GHz
i7-8700k
5800X
Test#1 (Integers)
6639 points/GHz
5170 points/GHz
Test#2 (FP)
5919 points/GHz
5631 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
2592 points/GHz
Test#1 (Memory)
3192 points/GHz
5656 points/GHz
TOTAL
17148 points/GHz
19049 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