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Xeon E5-2651 v2 vs Core i9-12900KF


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

Using the multithread performance as a reference, the E5-2651 v2 gets a score of 426.2 k points while the i9-12900KF gets 491 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
306e4
90672
Core
Ivy Bridge-EP
Alder Lake-S
Architecture
Base frecuency
1.8 GHz
3.2 GHz
Boost frecuency
2.2 GHz
5.2 GHz
Socket
LGA 2011
LGA 1700
Cores/Threads
12/24
16/24
TDP
W
125 W
Cache L1 (d+i)
12x32+12x32 kB
8x32/8x64+8x48/8x32 kB
Cache L2
12x256 kB
8x1280+8x2048 kB
Cache L3
30720 kB
30720 kB
Date
October 2013
November 2021
Mean monothread perf.
17.75k points
120.97k points
Mean multithread perf.
426.18k points
1219.33k 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
E5-2651 v2
i9-12900KF
Test#1 (Integers)
6.69k
28.96k (x4.33)
Test#2 (FP)
6.35k
30k (x4.73)
Test#3 (Generic, ZIP)
2.54k
16.94k (x6.67)
Test#1 (Memory)
2.17k
17.14k (x7.9)
TOTAL
17.75k
93.05k (x5.24)

Multithread

E5-2651 v2

i9-12900KF
Test#1 (Integers)
165.17k
166.25k (x1.01)
Test#2 (FP)
176.85k
172.03k (x0.97)
Test#3 (Generic, ZIP)
73.91k
96.95k (x1.31)
Test#1 (Memory)
10.25k
55.78k (x5.44)
TOTAL
426.18k
491.01k (x1.15)

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