Core i9-9900K vs i7-8086K
Description
Both models i9-9900K and i7-8086K are based on Coffee Lake architecture.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i7-8086K gets 352.4 k points.
Summarizing, the i9-9900K is 1.5 times faster than the i7-8086K . To get a proper comparison between both models, take a look to the data shown below.
Coffee Lake is the second refinement of Intel’s 14nm (Tri-Gate) technology. While it uses LGA1151 socket, it is incompatible with previous generations due to electrical changes in socket’s pins so these CPUs require Z370 chipset. This kind of generation introduced more cores in every range to compete with new AMD’s architecture. Coffee Lake uses DDR4 memory at 2400MHz for i3 and at 2666MHz for i5, i7 CPUs plus iGPU frequency has been increased 50MHz with respect to previous generation.
Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i7-8086K gets 352.4 k points.
Summarizing, the i9-9900K is 1.5 times faster than the i7-8086K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ec
906ea
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
3.6 GHz
4 GHz
Boost frecuency
5 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/16
6/12
TDP
95 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x32 kB
Cache L2
8x256 kB
6x256 kB
Cache L3
16384 kB
12288 kB
Date
October 2018
June 2018
Mean monothread perf.
86.24k points
72.95k points
Mean multithread perf.
545.3k points
352.4k 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
i9-9900K
i7-8086K
Test#1 (Integers)
33.62k
28.74k (x0.85)
Test#2 (FP)
30.02k
25.31k (x0.84)
Test#3 (Generic, ZIP)
7.17k
5.78k (x0.81)
Test#1 (Memory)
15.43k
13.12k (x0.85)
TOTAL
86.24k
72.95k (x0.85)
Multithread
i9-9900K
i7-8086K
Test#1 (Integers)
248.93k
160.53k (x0.64)
Test#2 (FP)
224.43k
147.29k (x0.66)
Test#3 (Generic, ZIP)
53.39k
35.65k (x0.67)
Test#1 (Memory)
18.54k
8.92k (x0.48)
TOTAL
545.3k
352.4k (x0.65)
Performance/W
i9-9900K
i7-8086K
Test#1 (Integers)
2620 points/W
1690 points/W
Test#2 (FP)
2362 points/W
1550 points/W
Test#3 (Generic, ZIP)
562 points/W
375 points/W
Test#1 (Memory)
195 points/W
94 points/W
TOTAL
5740 points/W
3709 points/W
Performance/GHz
i9-9900K
i7-8086K
Test#1 (Integers)
6724 points/GHz
5748 points/GHz
Test#2 (FP)
6003 points/GHz
5063 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
1156 points/GHz
Test#1 (Memory)
3087 points/GHz
2624 points/GHz
TOTAL
17247 points/GHz
14590 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