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Core i9-10940X vs i9-11900K


Description
The i9-10940X is based on Cascade Lake architecture while the i9-11900K is based on Rocket Lake.

Using the multithread performance as a reference, the i9-10940X gets a score of 1088.1 k points while the i9-11900K gets 748 k points.

Summarizing, the i9-10940X is 1.5 times faster than the i9-11900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
50657
a0671
Core
Cascade Lake-X
Rocket Lake-S
Architecture
Base frecuency
3.3 GHz
3.5 GHz
Boost frecuency
4.8 GHz
5.3 GHz
Socket
LGA 2066
LGA 1200
Cores/Threads
14/28
8/16
TDP
165 W
125 W
Cache L1 (d+i)
14x32+14x32 kB
8x32+8x48 kB
Cache L2
14x1024 kB
8x512 kB
Cache L3
19712 kB
16386 kB
Date
November 2019
March 2021
Mean monothread perf.
72.04k points
101.11k points
Mean multithread perf.
1088.11k points
748.02k 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
i9-10940X
i9-11900K
Test#1 (Integers)
29.75k
36.08k (x1.21)
Test#2 (FP)
27.44k
30.19k (x1.1)
Test#3 (Generic, ZIP)
5.81k
12.96k (x2.23)
Test#1 (Memory)
9.05k
21.88k (x2.42)
TOTAL
72.04k
101.11k (x1.4)

Multithread

i9-10940X

i9-11900K
Test#1 (Integers)
485.37k
311.76k (x0.64)
Test#2 (FP)
472.7k
314.01k (x0.66)
Test#3 (Generic, ZIP)
113.09k
112.23k (x0.99)
Test#1 (Memory)
16.95k
10.02k (x0.59)
TOTAL
1088.11k
748.02k (x0.69)

Performance/W
i9-10940X
i9-11900K
Test#1 (Integers)
2942 points/W
2494 points/W
Test#2 (FP)
2865 points/W
2512 points/W
Test#3 (Generic, ZIP)
685 points/W
898 points/W
Test#1 (Memory)
103 points/W
80 points/W
TOTAL
6595 points/W
5984 points/W

Performance/GHz
i9-10940X
i9-11900K
Test#1 (Integers)
6197 points/GHz
6807 points/GHz
Test#2 (FP)
5717 points/GHz
5695 points/GHz
Test#3 (Generic, ZIP)
1210 points/GHz
2446 points/GHz
Test#1 (Memory)
1885 points/GHz
4129 points/GHz
TOTAL
15009 points/GHz
19077 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