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Core i9-11900K vs i7-11700


Description
Both models i9-11900K and i7-11700 are based on Rocket Lake architecture.

It’s the 11th generation of Core CPUs and it’s manufactures in the 14nm. It has support for PCIe 4.0

Using the multithread performance as a reference, the i9-11900K gets a score of 788.9 k points while the i7-11700 gets 729 k points.

Summarizing, the i9-11900K is 1.1 times faster than the i7-11700. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
a0671
Core
Rocket Lake-S
Rocket Lake-S
Architecture
Base frecuency
3.5 GHz
2.5 GHz
Boost frecuency
5.3 GHz
4.9 GHz
Socket
LGA 1200
LGA 1200
Cores/Threads
8/16
8/16
TDP
125 W
65 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x48 kB
Cache L2
8x512 kB
8x512 kB
Cache L3
16386 kB
16384 kB
Date
March 2021
March 2021
Mean monothread perf.
106.41k points
98.87k points
Mean multithread perf.
788.94k points
728.98k 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
i9-11900K
i7-11700
Test#1 (Integers)
38.06k
35.12k (x0.92)
Test#2 (FP)
31.54k
29.24k (x0.93)
Test#3 (Generic, ZIP)
13.5k
12.56k (x0.93)
Test#1 (Memory)
23.3k
21.95k (x0.94)
TOTAL
106.41k
98.87k (x0.93)

Multithread

i9-11900K

i7-11700
Test#1 (Integers)
327.93k
304k (x0.93)
Test#2 (FP)
329.16k
304.7k (x0.93)
Test#3 (Generic, ZIP)
118.88k
109.64k (x0.92)
Test#1 (Memory)
12.98k
10.64k (x0.82)
TOTAL
788.94k
728.98k (x0.92)

Performance/W
i9-11900K
i7-11700
Test#1 (Integers)
2623 points/W
4677 points/W
Test#2 (FP)
2633 points/W
4688 points/W
Test#3 (Generic, ZIP)
951 points/W
1687 points/W
Test#1 (Memory)
104 points/W
164 points/W
TOTAL
6312 points/W
11215 points/W

Performance/GHz
i9-11900K
i7-11700
Test#1 (Integers)
7182 points/GHz
7168 points/GHz
Test#2 (FP)
5952 points/GHz
5967 points/GHz
Test#3 (Generic, ZIP)
2547 points/GHz
2563 points/GHz
Test#1 (Memory)
4397 points/GHz
4479 points/GHz
TOTAL
20077 points/GHz
20177 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