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Core i5-9600K vs i5-8500


Specs
CPUID
906ed
906ea
Core
Coffee Lake-S
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
3 GHz
Boost frecuency
4.6 GHz
4.1 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
6/6
TDP
95 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
9216 kB
9216 kB
Date
October 2018
March 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
i5-8500
Test#1 (Integers)
4688
4192 (-10.58%)
Test#2 (FP)
19351
17378 (-10.20%)
Test#3 (Generic, ZIP)
6083
5462 (-10.22%)
Test#1 (Memory)
13807
11924 (-13.63%)
TOTAL
43929
38956 (-11.32%)

Multithread

i5-9600K

i5-8500
Test#1 (Integers)
26240
27672 (5.46%)
Test#2 (FP)
107946
94071 (-12.85%)
Test#3 (Generic, ZIP)
34499
29055 (-15.78%)
Test#1 (Memory)
8102
4386 (-45.87%)
TOTAL
176786
155184 (-12.22%)

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
i5-8500
Test#1 (Integers)
16910
15225 (-9.97%)
Test#2 (FP)
24418
22020 (-9.82%)
Test#3 (Generic, ZIP)
6374
5746 (-9.86%)
Test#1 (Memory)
13546
12175 (-10.12%)
TOTAL
61248
55165 (-9.93%)

Multithread

i5-9600K

i5-8500
Test#1 (Integers)
95215
87781 (-7.81%)
Test#2 (FP)
137300
126729 (-7.70%)
Test#3 (Generic, ZIP)
36047
32928 (-8.65%)
Test#1 (Memory)
8396
4215 (-49.79%)
TOTAL
276957
251654 (-9.14%)

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
i5-8500
Test#1 (Integers)
16747
15208 (-9.19%)
Test#2 (FP)
25497
22940 (-10.03%)
Test#3 (Generic, ZIP)
6171
5538 (-10.27%)
Test#1 (Memory)
13062
11389 (-12.81%)
TOTAL
61477
55075 (-10.41%)

Multithread

i5-9600K

i5-8500
Test#1 (Integers)
96034
79517 (-17.20%)
Test#2 (FP)
143784
107776 (-25.04%)
Test#3 (Generic, ZIP)
35064
31885 (-9.06%)
Test#1 (Memory)
8453
13367 (58.13%)
TOTAL
283334
232546 (-17.93%)

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
i5-8500
Test#1 (Integers)
30642
27359 (-10.71%)
Test#2 (FP)
26751
24271 (-9.27%)
Test#3 (Generic, ZIP)
6331
5691 (-10.10%)
Test#1 (Memory)
14028
11765 (-16.13%)
TOTAL
77751
69087 (-11.14%)

Multithread

i5-9600K

i5-8500
Test#1 (Integers)
174924
144773 (-17.24%)
Test#2 (FP)
153881
129040 (-16.14%)
Test#3 (Generic, ZIP)
35932
29526 (-17.83%)
Test#1 (Memory)
8000
4185 (-47.69%)
TOTAL
372737
307524 (-17.50%)

Performance/W
i5-9600K
i5-8500
Test#1 (Integers)
1841 points/W
2227 points/W
Test#2 (FP)
1620 points/W
1985 points/W
Test#3 (Generic, ZIP)
378 points/W
454 points/W
Test#1 (Memory)
84 points/W
64 points/W
TOTAL
3924 points/W
4731 points/W

Performance/GHz
i5-9600K
i5-8500
Test#1 (Integers)
6661 points/GHz
6673 points/GHz
Test#2 (FP)
5815 points/GHz
5920 points/GHz
Test#3 (Generic, ZIP)
1376 points/GHz
1388 points/GHz
Test#1 (Memory)
3049 points/GHz
2870 points/GHz
TOTAL
16902 points/GHz
16850 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