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Core i5-9300H vs i5-9600K


Description
Both models i5-9300H 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 i5-9300H gets a score of 244.1 k points while the i5-9600K gets 372.7 k points.

Summarizing, the i5-9600K is 1.5 times faster than the i5-9300H. 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
2.4 GHz
3.7 GHz
Boost frecuency
4.1 GHz
4.6 GHz
Socket
FCBGA1440
LGA 1151
Cores/Threads
4/8
6/6
TDP
45 W
95 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
April 2019
October 2018
Mean monothread perf.
67.57k points
77.75k points
Mean multithread perf.
244.1k points
372.74k 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
i5-9300H
i5-9600K
Test#1 (Integers)
3.38k
4.69k (x1.39)
Test#2 (FP)
12.84k
19.35k (x1.51)
Test#3 (Generic, ZIP)
4.6k
6.08k (x1.32)
Test#1 (Memory)
6.23k
13.81k (x2.22)
TOTAL
27.05k
43.93k (x1.62)

Multithread

i5-9300H

i5-9600K
Test#1 (Integers)
11.6k
26.24k (x2.26)
Test#2 (FP)
48.01k
107.95k (x2.25)
Test#3 (Generic, ZIP)
17.05k
34.5k (x2.02)
Test#1 (Memory)
3.88k
8.1k (x2.09)
TOTAL
80.54k
176.79k (x2.2)

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
i5-9300H
i5-9600K
Test#1 (Integers)
26.62k
30.64k (x1.15)
Test#2 (FP)
23.38k
26.75k (x1.14)
Test#3 (Generic, ZIP)
5.52k
6.33k (x1.15)
Test#1 (Memory)
12.05k
14.03k (x1.16)
TOTAL
67.57k
77.75k (x1.15)

Multithread

i5-9300H

i5-9600K
Test#1 (Integers)
107.95k
174.92k (x1.62)
Test#2 (FP)
104.02k
153.88k (x1.48)
Test#3 (Generic, ZIP)
24.4k
35.93k (x1.47)
Test#1 (Memory)
7.74k
8k (x1.03)
TOTAL
244.1k
372.74k (x1.53)

Performance/W
i5-9300H
i5-9600K
Test#1 (Integers)
2399 points/W
1841 points/W
Test#2 (FP)
2312 points/W
1620 points/W
Test#3 (Generic, ZIP)
542 points/W
378 points/W
Test#1 (Memory)
172 points/W
84 points/W
TOTAL
5424 points/W
3924 points/W

Performance/GHz
i5-9300H
i5-9600K
Test#1 (Integers)
6493 points/GHz
6661 points/GHz
Test#2 (FP)
5703 points/GHz
5815 points/GHz
Test#3 (Generic, ZIP)
1346 points/GHz
1376 points/GHz
Test#1 (Memory)
2938 points/GHz
3049 points/GHz
TOTAL
16480 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