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Core i9-11900K vs i9-10980XE


Description
The i9-11900K is based on Rocket Lake architecture while the i9-10980XE is based on Cascade Lake.

Using the multithread performance as a reference, the i9-11900K gets a score of 748 k points while the i9-10980XE gets 1241.1 k points.

Summarizing, the i9-10980XE is 1.7 times faster than the i9-11900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
50657
Core
Rocket Lake-S
Cascade Lake-X
Architecture
Base frecuency
3.5 GHz
3 GHz
Boost frecuency
5.3 GHz
4.8 GHz
Socket
LGA 1200
LGA 2066
Cores/Threads
8/16
18/36
TDP
125 W
165 W
Cache L1 (d+i)
8x32+8x48 kB
18x32+18x32 kB
Cache L2
8x512 kB
18x1024 kB
Cache L3
16386 kB
25344 kB
Date
March 2021
November 2019
Mean monothread perf.
101.11k points
68.33k points
Mean multithread perf.
748.02k points
1241.12k 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
i9-10980XE
Test#1 (Integers)
36.08k
29.53k (x0.82)
Test#2 (FP)
30.19k
22.59k (x0.75)
Test#3 (Generic, ZIP)
12.96k
5.99k (x0.46)
Test#1 (Memory)
21.88k
10.22k (x0.47)
TOTAL
101.11k
68.33k (x0.68)

Multithread

i9-11900K

i9-10980XE
Test#1 (Integers)
311.76k
587.06k (x1.88)
Test#2 (FP)
314.01k
496.41k (x1.58)
Test#3 (Generic, ZIP)
112.23k
134.66k (x1.2)
Test#1 (Memory)
10.02k
22.99k (x2.29)
TOTAL
748.02k
1241.12k (x1.66)

Performance/W
i9-11900K
i9-10980XE
Test#1 (Integers)
2494 points/W
3558 points/W
Test#2 (FP)
2512 points/W
3009 points/W
Test#3 (Generic, ZIP)
898 points/W
816 points/W
Test#1 (Memory)
80 points/W
139 points/W
TOTAL
5984 points/W
7522 points/W

Performance/GHz
i9-11900K
i9-10980XE
Test#1 (Integers)
6807 points/GHz
6153 points/GHz
Test#2 (FP)
5695 points/GHz
4707 points/GHz
Test#3 (Generic, ZIP)
2446 points/GHz
1248 points/GHz
Test#1 (Memory)
4129 points/GHz
2129 points/GHz
TOTAL
19077 points/GHz
14236 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