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Core i9-11900K vs Xeon E5-2680 v3


Description
The i9-11900K is based on Rocket Lake architecture while the E5-2680 v3 is based on Haswell.

Using the multithread performance as a reference, the i9-11900K gets a score of 748 k points while the E5-2680 v3 gets 426.6 k points.

Summarizing, the i9-11900K is 1.8 times faster than the E5-2680 v3. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
306f2
Core
Rocket Lake-S
Haswell-EP
Architecture
Base frecuency
3.5 GHz
2.5 GHz
Boost frecuency
5.3 GHz
3.3 GHz
Socket
LGA 1200
LGA 2011-3
Cores/Threads
8/16
12/24
TDP
125 W
120 W
Cache L1 (d+i)
8x32+8x48 kB
12x32+12x32 kB
Cache L2
8x512 kB
12x256 kB
Cache L3
16386 kB
30720 kB
Date
March 2021
September 2014
Mean monothread perf.
101.11k points
36.31k points
Mean multithread perf.
748.02k points
426.58k 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
E5-2680 v3
Test#1 (Integers)
36.08k
18.86k (x0.52)
Test#2 (FP)
30.19k
10.06k (x0.33)
Test#3 (Generic, ZIP)
12.96k
4.14k (x0.32)
Test#1 (Memory)
21.88k
3.24k (x0.15)
TOTAL
101.11k
36.31k (x0.36)

Multithread

i9-11900K

E5-2680 v3
Test#1 (Integers)
311.76k
218.93k (x0.7)
Test#2 (FP)
314.01k
139.75k (x0.45)
Test#3 (Generic, ZIP)
112.23k
55.47k (x0.49)
Test#1 (Memory)
10.02k
12.42k (x1.24)
TOTAL
748.02k
426.58k (x0.57)

Performance/W
i9-11900K
E5-2680 v3
Test#1 (Integers)
2494 points/W
1824 points/W
Test#2 (FP)
2512 points/W
1165 points/W
Test#3 (Generic, ZIP)
898 points/W
462 points/W
Test#1 (Memory)
80 points/W
103 points/W
TOTAL
5984 points/W
3555 points/W

Performance/GHz
i9-11900K
E5-2680 v3
Test#1 (Integers)
6807 points/GHz
5716 points/GHz
Test#2 (FP)
5695 points/GHz
3049 points/GHz
Test#3 (Generic, ZIP)
2446 points/GHz
1254 points/GHz
Test#1 (Memory)
4129 points/GHz
983 points/GHz
TOTAL
19077 points/GHz
11002 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