Core i9-9900K vs i9-7980XE
Description
The i9-9900K is based on Coffee Lake architecture while the i9-7980XE is based on Skylake.
Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the i9-7980XE gets 1223.8 k points.
Summarizing, the i9-7980XE is 2.3 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 i9-9900K gets a score of 529.3 k points while the i9-7980XE gets 1223.8 k points.
Summarizing, the i9-7980XE is 2.3 times faster than the i9-9900K. 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
16384 kB
25344 kB
Date
October 2018
May 2017
Mean monothread perf.
81.91k points
76.43k points
Mean multithread perf.
529.32k points
1223.79k 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
i9-9900K
i9-7980XE
Test#1 (Integers)
5k
4.89k (x0.98)
Test#2 (FP)
20.22k
19.98k (x0.99)
Test#3 (Generic, ZIP)
6.54k
6.14k (x0.94)
Test#1 (Memory)
13.78k
9.81k (x0.71)
TOTAL
45.53k
40.82k (x0.9)
Multithread
i9-9900K
i9-7980XE
Test#1 (Integers)
36.39k
79.8k (x2.19)
Test#2 (FP)
166.55k
372.72k (x2.24)
Test#3 (Generic, ZIP)
54.92k
121.42k (x2.21)
Test#1 (Memory)
8.96k
26.48k (x2.95)
TOTAL
266.82k
600.43k (x2.25)
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
i9-9900K
i9-7980XE
Test#1 (Integers)
32.08k
31.16k (x0.97)
Test#2 (FP)
28.17k
28.13k (x1)
Test#3 (Generic, ZIP)
6.68k
6.65k (x1)
Test#1 (Memory)
14.98k
10.5k (x0.7)
TOTAL
81.91k
76.43k (x0.93)
Multithread
i9-9900K
i9-7980XE
Test#1 (Integers)
242.98k
560.19k (x2.31)
Test#2 (FP)
220.16k
516.97k (x2.35)
Test#3 (Generic, ZIP)
53.97k
123.94k (x2.3)
Test#1 (Memory)
12.22k
22.69k (x1.86)
TOTAL
529.32k
1223.79k (x2.31)
Performance/W
i9-9900K
i9-7980XE
Test#1 (Integers)
2558 points/W
3395 points/W
Test#2 (FP)
2317 points/W
3133 points/W
Test#3 (Generic, ZIP)
568 points/W
751 points/W
Test#1 (Memory)
129 points/W
137 points/W
TOTAL
5572 points/W
7417 points/W
Performance/GHz
i9-9900K
i9-7980XE
Test#1 (Integers)
6417 points/GHz
7081 points/GHz
Test#2 (FP)
5634 points/GHz
6392 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
1512 points/GHz
Test#1 (Memory)
2996 points/GHz
2386 points/GHz
TOTAL
16382 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