Core i9-7980XE vs i5-8400
Description
The i9-7980XE is based on Skylake architecture while the i5-8400 is based on Coffee Lake.
Using the multithread performance as a reference, the i9-7980XE gets a score of 1223.8 k points while the i5-8400 gets 289.6 k points.
Summarizing, the i9-7980XE is 4.2 times faster than the i5-8400. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i9-7980XE gets a score of 1223.8 k points while the i5-8400 gets 289.6 k points.
Summarizing, the i9-7980XE is 4.2 times faster than the i5-8400. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
50654
906ea
Core
Skylake-X
Coffee Lake-S
Base frecuency
2.6 GHz
2.8 GHz
Boost frecuency
4.4 GHz
4 GHz
Socket
LGA 2066
LGA 1151
Cores/Threads
18/36
6/6
TDP
165 W
65 W
Cache L1 (d+i)
18x32+18x32 kB
6x32+6x32 kB
Cache L2
18x1024 kB
6x256 kB
Cache L3
25344 kB
9216 kB
Date
May 2017
September 2017
Mean monothread perf.
76.43k points
64.98k points
Mean multithread perf.
1223.79k points
289.61k 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
i9-7980XE
i5-8400
Test#1 (Integers)
4.89k
4.08k (x0.84)
Test#2 (FP)
19.98k
14.96k (x0.75)
Test#3 (Generic, ZIP)
6.14k
4.98k (x0.81)
Test#1 (Memory)
9.81k
10.29k (x1.05)
TOTAL
40.82k
34.31k (x0.84)
Multithread
i9-7980XE
i5-8400
Test#1 (Integers)
79.8k
21.54k (x0.27)
Test#2 (FP)
372.72k
85.13k (x0.23)
Test#3 (Generic, ZIP)
121.42k
28.24k (x0.23)
Test#1 (Memory)
26.48k
4.08k (x0.15)
TOTAL
600.43k
139k (x0.23)
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
i9-7980XE
i5-8400
Test#1 (Integers)
31.16k
26.5k (x0.85)
Test#2 (FP)
28.13k
23.11k (x0.82)
Test#3 (Generic, ZIP)
6.65k
5.2k (x0.78)
Test#1 (Memory)
10.5k
10.16k (x0.97)
TOTAL
76.43k
64.98k (x0.85)
Multithread
i9-7980XE
i5-8400
Test#1 (Integers)
560.19k
135.08k (x0.24)
Test#2 (FP)
516.97k
121.49k (x0.24)
Test#3 (Generic, ZIP)
123.94k
27.53k (x0.22)
Test#1 (Memory)
22.69k
5.5k (x0.24)
TOTAL
1223.79k
289.61k (x0.24)
Performance/W
i9-7980XE
i5-8400
Test#1 (Integers)
3395 points/W
2078 points/W
Test#2 (FP)
3133 points/W
1869 points/W
Test#3 (Generic, ZIP)
751 points/W
424 points/W
Test#1 (Memory)
137 points/W
85 points/W
TOTAL
7417 points/W
4455 points/W
Performance/GHz
i9-7980XE
i5-8400
Test#1 (Integers)
7081 points/GHz
6626 points/GHz
Test#2 (FP)
6392 points/GHz
5778 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
1300 points/GHz
Test#1 (Memory)
2386 points/GHz
2541 points/GHz
TOTAL
17371 points/GHz
16245 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