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Core i5-6600K vs i9-11900KB


Description
The i5-6600K is based on Skylake architecture while the i9-11900KB is based on Tiger Lake.

Using the multithread performance as a reference, the i5-6600K gets a score of 199.9 k points while the i9-11900KB gets 537.2 k points.

Summarizing, the i9-11900KB is 2.7 times faster than the i5-6600K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
806d1
Core
Skylake-S
Tiger Lake-H
Architecture
Base frecuency
3.5 GHz
3.3 GHz
Boost frecuency
3.9 GHz
4.9 GHz
Socket
LGA 1151
BGA 1787
Cores/Threads
4/4
8/16
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
8x32+8x48 kB
Cache L2
256 kB
8x1280 kB
Cache L3
6144 kB
24576 kB
Date
May 2015
July 2021
Mean monothread perf.
56.21k points
63.79k points
Mean multithread perf.
199.91k points
537.18k 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
i5-6600K
i9-11900KB
Test#1 (Integers)
24.19k
24.09k (x1)
Test#2 (FP)
21.31k
19.54k (x0.92)
Test#3 (Generic, ZIP)
4.95k
8.48k (x1.71)
Test#1 (Memory)
5.75k
11.68k (x2.03)
TOTAL
56.21k
63.79k (x1.13)

Multithread

i5-6600K

i9-11900KB
Test#1 (Integers)
93.15k
220.79k (x2.37)
Test#2 (FP)
81.18k
225.98k (x2.78)
Test#3 (Generic, ZIP)
18.29k
79.1k (x4.32)
Test#1 (Memory)
7.29k
11.32k (x1.55)
TOTAL
199.91k
537.18k (x2.69)

Performance/W
i5-6600K
i9-11900KB
Test#1 (Integers)
981 points/W
3397 points/W
Test#2 (FP)
855 points/W
3477 points/W
Test#3 (Generic, ZIP)
193 points/W
1217 points/W
Test#1 (Memory)
77 points/W
174 points/W
TOTAL
2104 points/W
8264 points/W

Performance/GHz
i5-6600K
i9-11900KB
Test#1 (Integers)
6203 points/GHz
4917 points/GHz
Test#2 (FP)
5463 points/GHz
3988 points/GHz
Test#3 (Generic, ZIP)
1270 points/GHz
1730 points/GHz
Test#1 (Memory)
1475 points/GHz
2384 points/GHz
TOTAL
14412 points/GHz
13018 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