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Core i9-12900KF vs Xeon E5-2651 v2


Description
The i9-12900KF is based on Alder Lake architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i9-12900KF gets a score of 491 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the i9-12900KF is 1.2 times faster than the E5-2651 v2. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
306e4
Core
Alder Lake-S
Ivy Bridge-EP
Architecture
Base frecuency
3.2 GHz
1.8 GHz
Boost frecuency
5.2 GHz
2.2 GHz
Socket
LGA 1700
LGA 2011
Cores/Threads
16/24
12/24
TDP
125 W
W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
12x32+12x32 kB
Cache L2
8x1280+8x2048 kB
12x256 kB
Cache L3
30720 kB
30720 kB
Date
November 2021
October 2013
Mean monothread perf.
120.97k points
17.75k points
Mean multithread perf.
1219.33k points
426.18k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i9-12900KF
E5-2651 v2
Test#1 (Integers)
28.96k
6.69k (x0.23)
Test#2 (FP)
30k
6.35k (x0.21)
Test#3 (Generic, ZIP)
16.94k
2.54k (x0.15)
Test#1 (Memory)
17.14k
2.17k (x0.13)
TOTAL
93.05k
17.75k (x0.19)

Multithread

i9-12900KF

E5-2651 v2
Test#1 (Integers)
166.25k
165.17k (x0.99)
Test#2 (FP)
172.03k
176.85k (x1.03)
Test#3 (Generic, ZIP)
96.95k
73.91k (x0.76)
Test#1 (Memory)
55.78k
10.25k (x0.18)
TOTAL
491.01k
426.18k (x0.87)

Performance/W
i9-12900KF
E5-2651 v2
Test#1 (Integers)
1330 points/W