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Core i9-7980XE vs i5-9600K


Description
The i9-7980XE is based on Skylake architecture while the i5-9600K 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 i5-9600K gets 372.7 k points.

Summarizing, the i9-7980XE is 3.3 times faster than the i5-9600K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50654
906ed
Core
Skylake-X
Coffee Lake-S
Architecture
Base frecuency
2.6 GHz
3.7 GHz
Boost frecuency
4.4 GHz
4.6 GHz
Socket
LGA 2066
LGA 1151
Cores/Threads
18/36
6/6
TDP
165 W
95 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
October 2018
Mean monothread perf.
76.43k points
77.75k points
Mean multithread perf.
1223.79k points
372.74k 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
i5-9600K
Test#1 (Integers)
4.89k
4.69k (x0.96)
Test#2 (FP)
19.98k
19.35k (x0.97)
Test#3 (Generic, ZIP)
6.14k
6.08k (x0.99)
Test#1 (Memory)
9.81k
13.81k (x1.41)
TOTAL
40.82k
43.93k (x1.08)

Multithread

i9-7980XE

i5-9600K
Test#1 (Integers)
79.8k
26.24k (x0.33)
Test#2 (FP)
372.72k
107.95k (x0.29)
Test#3 (Generic, ZIP)
121.42k
34.5k (x0.28)
Test#1 (Memory)
26.48k
8.1k (x0.31)
TOTAL
600.43k
176.79k (x0.29)

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
i5-9600K
Test#1 (Integers)
31.16k
30.64k (x0.98)
Test#2 (FP)
28.13k
26.75k (x0.95)
Test#3 (Generic, ZIP)
6.65k
6.33k (x0.95)
Test#1 (Memory)
10.5k
14.03k (x1.34)
TOTAL
76.43k
77.75k (x1.02)

Multithread

i9-7980XE

i5-9600K
Test#1 (Integers)
560.19k
174.92k (x0.31)
Test#2 (FP)
516.97k
153.88k (x0.3)
Test#3 (Generic, ZIP)
123.94k
35.93k (x0.29)
Test#1 (Memory)
22.69k
8k (x0.35)
TOTAL
1223.79k
372.74k (x0.3)

Performance/W
i9-7980XE
i5-9600K
Test#1 (Integers)
3395 points/W
1841 points/W
Test#2 (FP)
3133 points/W
1620 points/W
Test#3 (Generic, ZIP)
751 points/W
378 points/W
Test#1 (Memory)
137 points/W
84 points/W
TOTAL
7417 points/W
3924 points/W

Performance/GHz
i9-7980XE
i5-9600K
Test#1 (Integers)
7081 points/GHz
6661 points/GHz
Test#2 (FP)
6392 points/GHz
5815 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
1376 points/GHz
Test#1 (Memory)
2386 points/GHz
3049 points/GHz
TOTAL
17371 points/GHz
16902 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