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Core i5-9600K vs i9-9900K


Specs
CPUID
906ed
906ed
Core
Coffee Lake-S
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
3.6 GHz
Boost frecuency
4.6 GHz
5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
8/16
TDP
95 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
8x32+8x32 kB
Cache L2
6x256 kB
8x256 kB
Cache L3
9216 kB
16384 kB
Date
October 2018
October 2018

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
i5-9600K
i9-9900K
Test#1 (Integers)
4688
4996 (6.58%)
Test#2 (FP)
19351
20217 (4.47%)
Test#3 (Generic, ZIP)
6083
6545 (7.58%)
Test#1 (Memory)
13807
13775 (-0.23%)
TOTAL
43929
45532 (3.65%)

Multithread

i5-9600K

i9-9900K
Test#1 (Integers)
26240
36390 (38.68%)
Test#2 (FP)
107946
166549 (54.29%)
Test#3 (Generic, ZIP)
34499
54922 (59.20%)
Test#1 (Memory)
8102
8963 (10.63%)
TOTAL
176786
266824 (50.93%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i5-9600K
i9-9900K
Test#1 (Integers)
16910
18030 (6.63%)
Test#2 (FP)
24418
25978 (6.39%)
Test#3 (Generic, ZIP)
6374
6859 (7.60%)
Test#1 (Memory)
13546
14502 (7.06%)
TOTAL
61248
65369 (6.73%)

Multithread

i5-9600K

i9-9900K
Test#1 (Integers)
95215
131344 (37.94%)
Test#2 (FP)
137300
204758 (49.13%)
Test#3 (Generic, ZIP)
36047
55741 (54.64%)
Test#1 (Memory)
8396
8989 (7.06%)
TOTAL
276957
400832 (44.73%)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i5-9600K
i9-9900K
Test#1 (Integers)
16747
17979 (7.36%)
Test#2 (FP)
25497
27039 (6.05%)
Test#3 (Generic, ZIP)
6171
6627 (7.38%)
Test#1 (Memory)
13062
13600 (4.12%)
TOTAL
61477
65245 (6.13%)

Multithread

i5-9600K

i9-9900K
Test#1 (Integers)
96034
130881 (36.29%)
Test#2 (FP)
143784
208498 (45.01%)
Test#3 (Generic, ZIP)
35064
54122 (54.35%)
Test#1 (Memory)
8453
8905 (5.35%)
TOTAL
283334
402406 (42.03%)

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
i5-9600K
i9-9900K
Test#1 (Integers)
30642
32085 (4.71%)
Test#2 (FP)
26751
28170 (5.31%)
Test#3 (Generic, ZIP)
6331
6675 (5.45%)
Test#1 (Memory)
14028
14978 (6.77%)
TOTAL
77751
81908 (5.35%)

Multithread

i5-9600K

i9-9900K
Test#1 (Integers)
174924
242980 (38.91%)
Test#2 (FP)
153881
220157 (43.07%)
Test#3 (Generic, ZIP)
35932
53966 (50.19%)
Test#1 (Memory)
8000
12218 (52.72%)
TOTAL
372737
529320 (42.01%)

Performance/W
i5-9600K
i9-9900K
Test#1 (Integers)
1841 points/W
2558 points/W
Test#2 (FP)
1620 points/W
2317 points/W
Test#3 (Generic, ZIP)
378 points/W
568 points/W
Test#1 (Memory)
84 points/W
129 points/W
TOTAL
3924 points/W
5572 points/W

Performance/GHz
i5-9600K
i9-9900K
Test#1 (Integers)
6661 points/GHz
6417 points/GHz
Test#2 (FP)
5815 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
1376 points/GHz
1335 points/GHz
Test#1 (Memory)
3049 points/GHz
2996 points/GHz
TOTAL
16902 points/GHz
16382 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. 3.7.4