| | | | | | |

Core i7-9750H vs i5-9600K


Description
Both models i7-9750H and i5-9600K 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 286.4 k points while the i5-9600K gets 372.7 k points.

Summarizing, the i5-9600K 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
906ea
906ed
Core
Coffee Lake-H
Coffee Lake-S
Architecture
Base frecuency
2.6 GHz
3.7 GHz
Boost frecuency
4.5 GHz
4.6 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
6/12
6/6
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
9216 kB
Date
April 2019
October 2018
Mean monothread perf.
65.33k points
77.75k points
Mean multithread perf.
286.43k points
372.74k 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
i5-9600K
Test#1 (Integers)
25.93k
30.64k (x1.18)
Test#2 (FP)
22.84k
26.75k (x1.17)
Test#3 (Generic, ZIP)
5.11k
6.33k (x1.24)
Test#1 (Memory)
11.46k
14.03k (x1.22)
TOTAL
65.33k
77.75k (x1.19)

Multithread

i7-9750H

i5-9600K
Test#1 (Integers)
130.68k
174.92k (x1.34)
Test#2 (FP)
119.91k
153.88k (x1.28)
Test#3 (Generic, ZIP)
28.76k
35.93k (x1.25)
Test#1 (Memory)
7.08k
8k (x1.13)
TOTAL
286.43k
372.74k (x1.3)

Performance/W
i7-9750H
i5-9600K
Test#1 (Integers)
2904 points/W
1841 points/W
Test#2 (FP)
2665 points/W
1620 points/W
Test#3 (Generic, ZIP)
639 points/W
378 points/W
Test#1 (Memory)
157 points/W
84 points/W
TOTAL
6365 points/W
3924 points/W

Performance/GHz
i7-9750H
i5-9600K
Test#1 (Integers)
5762 points/GHz
6661 points/GHz
Test#2 (FP)
5075 points/GHz
5815 points/GHz
Test#3 (Generic, ZIP)
1135 points/GHz
1376 points/GHz
Test#1 (Memory)
2547 points/GHz
3049 points/GHz
TOTAL
14519 points/GHz
16902 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4