Core i9-7980XE vs i9-9900K
Description
The i9-7980XE is based on Skylake architecture while the i9-9900K 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 i9-9900K gets 545.3 k points.
Summarizing, the i9-7980XE is 2.2 times faster than the i9-9900K. 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 i9-9900K gets 545.3 k points.
Summarizing, the i9-7980XE is 2.2 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
50654
906ec
Core
Skylake-X
Coffee Lake-S
Base frecuency
2.6 GHz
3.6 GHz
Boost frecuency
4.4 GHz
5 GHz
Socket
LGA 2066
LGA 1151
Cores/Threads
18/36
8/16
TDP
165 W
95 W
Cache L1 (d+i)
18x32+18x32 kB
8x32+8x32 kB
Cache L2
18x1024 kB
8x256 kB
Cache L3
25344 kB
16384 kB
Date
May 2017
October 2018
Mean monothread perf.
76.43k points
86.24k points
Mean multithread perf.
1223.79k points
545.3k 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
i9-9900K
Test#1 (Integers)
4.89k
5.17k (x1.06)
Test#2 (FP)
19.98k
21.15k (x1.06)
Test#3 (Generic, ZIP)
6.14k
7.01k (x1.14)
Test#1 (Memory)
9.81k
15.32k (x1.56)
TOTAL
40.82k
48.66k (x1.19)
Multithread
i9-7980XE
i9-9900K
Test#1 (Integers)
79.8k
38.45k (x0.48)
Test#2 (FP)
372.72k
155.68k (x0.42)
Test#3 (Generic, ZIP)
121.42k
51k (x0.42)
Test#1 (Memory)
26.48k
18.26k (x0.69)
TOTAL
600.43k
263.38k (x0.44)
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
i9-9900K
Test#1 (Integers)
31.16k
33.62k (x1.08)
Test#2 (FP)
28.13k
30.02k (x1.07)
Test#3 (Generic, ZIP)
6.65k
7.17k (x1.08)
Test#1 (Memory)
10.5k
15.43k (x1.47)
TOTAL
76.43k
86.24k (x1.13)
Multithread
i9-7980XE
i9-9900K
Test#1 (Integers)
560.19k
248.93k (x0.44)
Test#2 (FP)
516.97k
224.43k (x0.43)
Test#3 (Generic, ZIP)
123.94k
53.39k (x0.43)
Test#1 (Memory)
22.69k
18.54k (x0.82)
TOTAL
1223.79k
545.3k (x0.45)
Performance/W
i9-7980XE
i9-9900K
Test#1 (Integers)
3395 points/W
2620 points/W
Test#2 (FP)
3133 points/W
2362 points/W
Test#3 (Generic, ZIP)
751 points/W
562 points/W
Test#1 (Memory)
137 points/W
195 points/W
TOTAL
7417 points/W
5740 points/W
Performance/GHz
i9-7980XE
i9-9900K
Test#1 (Integers)
7081 points/GHz
6724 points/GHz
Test#2 (FP)
6392 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
1512 points/GHz
1434 points/GHz
Test#1 (Memory)
2386 points/GHz
3087 points/GHz
TOTAL
17371 points/GHz
17247 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