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Core i7-11700K vs i9-9900KF


Description
The i7-11700K is based on Rocket Lake architecture while the i9-9900KF is based on Coffee Lake.

Using the multithread performance as a reference, the i7-11700K gets a score of 742.2 k points while the i9-9900KF gets 592.9 k points.

Summarizing, the i7-11700K is 1.3 times faster than the i9-9900KF. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
906ed
Core
Rocket Lake-S
Coffee Lake-S
Architecture
Base frecuency
3.6 GHz
3.6 GHz
Boost frecuency
5 GHz
5 GHz
Socket
LGA 1200
LGA 1151
Cores/Threads
8/16
8/16
TDP
125 W
95 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x32 kB
Cache L2
8x512 kB
8x256 kB
Cache L3
16384 kB
16386 kB
Date
March 2021
January 2019
Mean monothread perf.
99.57k points
84.54k points
Mean multithread perf.
742.15k points
592.86k 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
i7-11700K
i9-9900KF
Test#1 (Integers)
36.24k
33.03k (x0.91)
Test#2 (FP)
28.87k
29.52k (x1.02)
Test#3 (Generic, ZIP)
12.76k
6.55k (x0.51)
Test#1 (Memory)
21.7k
15.45k (x0.71)
TOTAL
99.57k
84.54k (x0.85)

Multithread

i7-11700K

i9-9900KF
Test#1 (Integers)
315.15k
276.22k (x0.88)
Test#2 (FP)
303.07k
250.61k (x0.83)
Test#3 (Generic, ZIP)
111.09k
57.2k (x0.51)
Test#1 (Memory)
12.85k
8.84k (x0.69)
TOTAL
742.15k
592.86k (x0.8)

Performance/W
i7-11700K
i9-9900KF
Test#1 (Integers)
2521 points/W
2908 points/W
Test#2 (FP)
2425 points/W
2638 points/W
Test#3 (Generic, ZIP)
889 points/W
602 points/W
Test#1 (Memory)
103 points/W
93 points/W
TOTAL
5937 points/W
6241 points/W

Performance/GHz
i7-11700K
i9-9900KF
Test#1 (Integers)
7247 points/GHz
6605 points/GHz
Test#2 (FP)
5775 points/GHz
5904 points/GHz
Test#3 (Generic, ZIP)
2551 points/GHz
1309 points/GHz
Test#1 (Memory)
4341 points/GHz
3090 points/GHz
TOTAL
19914 points/GHz
16909 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