Core i7-9750H vs i7-8086K
Description
Both models i7-9750H 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 i7-9750H gets a score of 276.5 k points while the i7-8086K gets 352.4 k points.
Summarizing, the i7-8086K is 1.3 times faster than the i7-9750H. 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 i7-9750H gets a score of 276.5 k points while the i7-8086K gets 352.4 k points.
Summarizing, the i7-8086K is 1.3 times faster than the i7-9750H. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
906ea
Core
Coffee Lake-H
Coffee Lake-S
Base frecuency
2.6 GHz
4 GHz
Boost frecuency
4.5 GHz
5 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
6/12
6/12
TDP
45 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
12288 kB
Date
April 2019
June 2018
Mean monothread perf.
62.92k points
72.95k points
Mean multithread perf.
276.46k 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
i7-9750H
i7-8086K
Test#1 (Integers)
25.22k
28.74k (x1.14)
Test#2 (FP)
21.97k
25.31k (x1.15)
Test#3 (Generic, ZIP)
5.02k
5.78k (x1.15)
Test#1 (Memory)
10.71k
13.12k (x1.23)
TOTAL
62.92k
72.95k (x1.16)
Multithread
i7-9750H
i7-8086K
Test#1 (Integers)
125.56k
160.53k (x1.28)
Test#2 (FP)
115.86k
147.29k (x1.27)
Test#3 (Generic, ZIP)
25.63k
35.65k (x1.39)
Test#1 (Memory)
9.4k
8.92k (x0.95)
TOTAL
276.46k
352.4k (x1.27)
Performance/W
i7-9750H
i7-8086K
Test#1 (Integers)
2790 points/W
1690 points/W
Test#2 (FP)
2575 points/W
1550 points/W
Test#3 (Generic, ZIP)
570 points/W
375 points/W
Test#1 (Memory)
209 points/W
94 points/W
TOTAL
6144 points/W
3709 points/W
Performance/GHz
i7-9750H
i7-8086K
Test#1 (Integers)
5605 points/GHz
5748 points/GHz
Test#2 (FP)
4882 points/GHz
5063 points/GHz
Test#3 (Generic, ZIP)
1115 points/GHz
1156 points/GHz
Test#1 (Memory)
2380 points/GHz
2624 points/GHz
TOTAL
13982 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