Core i9-9900K vs i5-6600K
Description
The i9-9900K is based on Coffee Lake architecture while the i5-6600K is based on Skylake.
Using the multithread performance as a reference, the i9-9900K gets a score of 402.4 k points while the i5-6600K gets 209.3 k points.
Summarizing, the i9-9900K is 1.9 times faster than the i5-6600K . To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i9-9900K gets a score of 402.4 k points while the i5-6600K gets 209.3 k points.
Summarizing, the i9-9900K is 1.9 times faster than the i5-6600K . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ed
506e3
Core
Coffee Lake-S
Skylake-S
Base frecuency
3.6 GHz
3.5 GHz
Boost frecuency
5 GHz
3.9 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
8/16
4/4
TDP
95 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x256 kB
256 kB
Cache L3
16384 kB
6144 kB
Date
October 2018
May 2015
Mean monothread perf.
81.91k points
59.28k points
Mean multithread perf.
529.32k points
209.28k points
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
i9-9900K
i5-6600K
Test#1 (Integers)
17.98k
17.24k (x0.96)
Test#2 (FP)
27.04k
26.5k (x0.98)
Test#3 (Generic, ZIP)
6.63k
6.45k (x0.97)
Test#1 (Memory)
13.6k
9.09k (x0.67)
TOTAL
65.24k
59.28k (x0.91)
Multithread
i9-9900K
i5-6600K
Test#1 (Integers)
130.88k
68.47k (x0.52)
Test#2 (FP)
208.5k
105.05k (x0.5)
Test#3 (Generic, ZIP)
54.12k
25.24k (x0.47)
Test#1 (Memory)
8.91k
10.5k (x1.18)
TOTAL
402.41k
209.28k (x0.52)
Performance/W
i9-9900K
i5-6600K
Test#1 (Integers)
1378 points/W
721 points/W
Test#2 (FP)
2195 points/W
1106 points/W
Test#3 (Generic, ZIP)
570 points/W
266 points/W
Test#1 (Memory)
94 points/W
111 points/W
TOTAL
4236 points/W
2203 points/W
Performance/GHz
i9-9900K
i5-6600K
Test#1 (Integers)
3596 points/GHz
4420 points/GHz
Test#2 (FP)
5408 points/GHz
6795 points/GHz
Test#3 (Generic, ZIP)
1325 points/GHz
1653 points/GHz
Test#1 (Memory)
2720 points/GHz
2331 points/GHz
TOTAL
13049 points/GHz
15199 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