Core i5-9400F vs i5-9600KF
Description
Both models i5-9400F and i5-9600KF 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 i5-9400F gets a score of 331.2 k points while the i5-9600KF gets 371.1 k points.
Summarizing, the i5-9600KF is 1.1 times faster than the i5-9400F. 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 i5-9400F gets a score of 331.2 k points while the i5-9600KF gets 371.1 k points.
Summarizing, the i5-9600KF is 1.1 times faster than the i5-9400F. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906ec
Core
Coffee Lake-S
Coffee Lake-S
Base frecuency
2.9 GHz
3.7 GHz
Boost frecuency
4.1 GHz
4.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
6/6
TDP
65 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
9216 kB
9216 kB
Date
January 2019
January 2019
Mean monothread perf.
67.77k points
77.34k points
Mean multithread perf.
331.19k points
371.08k 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
i5-9400F
i5-9600KF
Test#1 (Integers)
27.15k
30.52k (x1.12)
Test#2 (FP)
23.63k
26.54k (x1.12)
Test#3 (Generic, ZIP)
5.38k
6.41k (x1.19)
Test#1 (Memory)
11.61k
13.87k (x1.19)
TOTAL
67.77k
77.34k (x1.14)
Multithread
i5-9400F
i5-9600KF
Test#1 (Integers)
156.61k
174.66k (x1.12)
Test#2 (FP)
138k
154.06k (x1.12)
Test#3 (Generic, ZIP)
29.45k
34.11k (x1.16)
Test#1 (Memory)
7.14k
8.24k (x1.15)
TOTAL
331.19k
371.08k (x1.12)
Performance/W
i5-9400F
i5-9600KF
Test#1 (Integers)
2409 points/W
1839 points/W
Test#2 (FP)
2123 points/W
1622 points/W
Test#3 (Generic, ZIP)
453 points/W
359 points/W
Test#1 (Memory)
110 points/W
87 points/W
TOTAL
5095 points/W
3906 points/W
Performance/GHz
i5-9400F
i5-9600KF
Test#1 (Integers)
6622 points/GHz
6635 points/GHz
Test#2 (FP)
5763 points/GHz
5769 points/GHz
Test#3 (Generic, ZIP)
1312 points/GHz
1394 points/GHz
Test#1 (Memory)
2831 points/GHz
3015 points/GHz
TOTAL
16528 points/GHz
16813 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