| | | | | | |

Core i5-8400 vs Ryzen 7 2700X


Description
The i5-8400 is based on Coffee Lake architecture while the 2700X is based on Zen+.

Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the 2700X gets 433.2 k points.

Summarizing, the 2700X is 1.5 times faster than the i5-8400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
800f82
Core
Coffee Lake-S
Pinnacle Ridge
Architecture
Base frecuency
2.8 GHz
3.7 GHz
Boost frecuency
4 GHz
4.3 GHz
Socket
LGA 1151
AM4
Cores/Threads
6/6
8/16
TDP
65 W
105 W
Cache L1 (d+i)
6x32+6x32 kB
8x64+8x32 kB
Cache L2
6x256 kB
8x512 kB
Cache L3
9216 kB
16384 kB
Date
September 2017
April 2018
Mean monothread perf.
64.98k points
65.87k points
Mean multithread perf.
289.61k points
433.19k 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
i5-8400
2700X
Test#1 (Integers)
4.08k
4.25k (x1.04)
Test#2 (FP)
14.96k
19.72k (x1.32)
Test#3 (Generic, ZIP)
4.98k
5.84k (x1.17)
Test#1 (Memory)
10.29k
21.36k (x2.08)
TOTAL
34.31k
51.17k (x1.49)

Multithread

i5-8400

2700X
Test#1 (Integers)
21.54k
35.04k (x1.63)
Test#2 (FP)
85.13k
181.42k (x2.13)
Test#3 (Generic, ZIP)
28.24k
64.86k (x2.3)
Test#1 (Memory)
4.08k
8.21k (x2.01)
TOTAL
139k
289.54k (x2.08)

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
i5-8400
2700X
Test#1 (Integers)
26.5k
15.61k (x0.59)
Test#2 (FP)
23.11k
26.08k (x1.13)
Test#3 (Generic, ZIP)
5.2k
5.84k (x1.12)
Test#1 (Memory)
10.16k
18.34k (x1.81)
TOTAL
64.98k
65.87k (x1.01)

Multithread

i5-8400

2700X
Test#1 (Integers)
135.08k
123.33k (x0.91)
Test#2 (FP)
121.49k
240.46k (x1.98)
Test#3 (Generic, ZIP)
27.53k
61.23k (x2.22)
Test#1 (Memory)
5.5k
8.17k (x1.48)
TOTAL
289.61k
433.19k (x1.5)

Performance/W
i5-8400
2700X
Test#1 (Integers)
2078 points/W
1175 points/W
Test#2 (FP)
1869 points/W
2290 points/W
Test#3 (Generic, ZIP)
424 points/W
583 points/W
Test#1 (Memory)
85 points/W
78 points/W
TOTAL
4455 points/W
4126 points/W

Performance/GHz
i5-8400
2700X
Test#1 (Integers)
6626 points/GHz
3631 points/GHz
Test#2 (FP)
5778 points/GHz
6065 points/GHz
Test#3 (Generic, ZIP)
1300 points/GHz
1357 points/GHz
Test#1 (Memory)
2541 points/GHz
4266 points/GHz
TOTAL
16245 points/GHz
15319 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