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Xeon E5-2651 v2 vs Core i9-9900K


Description
The E5-2651 v2 is based on Ivy Bridge architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the E5-2651 v2 gets a score of 426.2 k points while the i9-9900K gets 402.4 k points.

Summarizing, the E5-2651 v2 is 1.1 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
906ed
Core
Ivy Bridge-EP
Coffee Lake-S
Architecture
Base frecuency
1.8 GHz
3.6 GHz
Boost frecuency
2.2 GHz
5 GHz
Socket
LGA 2011
LGA 1151
Cores/Threads
12/24
8/16
TDP
W
95 W
Cache L1 (d+i)
12x32+12x32 kB
8x32+8x32 kB
Cache L2
12x256 kB
8x256 kB
Cache L3
30720 kB
16384 kB
Date
October 2013
October 2018
Mean monothread perf.
17.75k points
81.91k points
Mean multithread perf.
426.18k points
529.32k points

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
E5-2651 v2
i9-9900K
Test#1 (Integers)
6.75k
18.03k (x2.67)
Test#2 (FP)
6.05k
25.98k (x4.29)
Test#3 (Generic, ZIP)
2.61k
6.86k (x2.63)
Test#1 (Memory)
2.26k
14.5k (x6.41)
TOTAL
17.68k
65.37k (x3.7)

Multithread

E5-2651 v2

i9-9900K
Test#1 (Integers)
168.18k
131.34k (x0.78)
Test#2 (FP)
159.6k
204.76k (x1.28)
Test#3 (Generic, ZIP)
77.04k
55.74k (x0.72)
Test#1 (Memory)
10.19k
8.99k (x0.88)
TOTAL
415.01k
400.83k (x0.97)

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
i9-9900K
Test#1 (Integers)
6.69k
17.98k (x2.69)
Test#2 (FP)
6.35k
27.04k (x4.26)
Test#3 (Generic, ZIP)
2.54k
6.63k (x2.61)
Test#1 (Memory)
2.17k
13.6k (x6.26)
TOTAL
17.75k
65.24k (x3.68)

Multithread

E5-2651 v2

i9-9900K
Test#1 (Integers)
165.17k
130.88k (x0.79)
Test#2 (FP)
176.85k
208.5k (x1.18)
Test#3 (Generic, ZIP)
73.91k
54.12k (x0.73)
Test#1 (Memory)
10.25k
8.91k (x0.87)
TOTAL
426.18k
402.41k (x0.94)

Performance/W
E5-2651 v2
i9-9900K
Test#1 (Integers)