Core i9-9900KF vs i9-7980XE
Description
The i9-9900KF is based on Coffee Lake architecture while the i9-7980XE is based on Skylake.
Using the multithread performance as a reference, the i9-9900KF gets a score of 592.9 k points while the i9-7980XE gets 1223.8 k points.
Summarizing, the i9-7980XE is 2.1 times faster than the i9-9900KF. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i9-9900KF gets a score of 592.9 k points while the i9-7980XE gets 1223.8 k points.
Summarizing, the i9-7980XE is 2.1 times faster than the i9-9900KF. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
50654
Core
Coffee Lake-S
Skylake-X
Base frecuency
3.6 GHz
2.6 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
LGA 1151
LGA 2066
Cores/Threads
8/16
18/36
TDP
95 W
165 W
Cache L1 (d+i)
8x32+8x32 kB
18x32+18x32 kB
Cache L2
8x256 kB
18x1024 kB
Cache L3
16386 kB
25344 kB
Date
January 2019
May 2017
Mean monothread perf.
84.54k points
76.43k points
Mean multithread perf.
592.86k points
1223.79k points
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
i9-9900KF
i9-7980XE
Test#1 (Integers)
33.03k
31.16k (x0.94)
Test#2 (FP)
29.52k
28.13k (x0.95)
Test#3 (Generic, ZIP)
6.55k
6.65k (x1.02)
Test#1 (Memory)
15.45k
10.5k (x0.68)
TOTAL
84.54k
76.43k (x0.9)
Multithread
i9-9900KF
i9-7980XE
Test#1 (Integers)
276.22k
560.19k (x2.03)
Test#2 (FP)
250.61k
516.97k (x2.06)
Test#3 (Generic, ZIP)
57.2k
123.94k (x2.17)
Test#1 (Memory)
8.84k
22.69k (x2.57)
TOTAL
592.86k
1223.79k (x2.06)
Performance/W
i9-9900KF
i9-7980XE
Test#1 (Integers)
2908 points/W
3395 points/W
Test#2 (FP)
2638 points/W
3133 points/W
Test#3 (Generic, ZIP)
602 points/W
751 points/W
Test#1 (Memory)
93 points/W
137 points/W
TOTAL
6241 points/W
7417 points/W
Performance/GHz
i9-9900KF
i9-7980XE
Test#1 (Integers)
6605 points/GHz
7081 points/GHz
Test#2 (FP)
5904 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
1309 points/GHz
1512 points/GHz
Test#1 (Memory)
3090 points/GHz
2386 points/GHz
TOTAL
16909 points/GHz
17371 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