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Core i7-11700 vs Xeon E5-2651 v2


Description
The i7-11700 is based on Rocket Lake architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i7-11700 gets a score of 544.2 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the i7-11700 is 1.3 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
a0671
306e4
Core
Rocket Lake-S
Ivy Bridge-EP
Architecture
Base frecuency
2.5 GHz
1.8 GHz
Boost frecuency
4.9 GHz
2.2 GHz
Socket
LGA 1200
LGA 2011
Cores/Threads
8/16
12/24
TDP
65 W
W
Cache L1 (d+i)
8x32+8x48 kB
12x32+12x32 kB
Cache L2
8x512 kB
12x256 kB
Cache L3
16384 kB
30720 kB
Date
March 2021
October 2013
Mean monothread perf.
98.87k points
17.75k points
Mean multithread perf.
728.98k points
426.18k 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
i7-11700
E5-2651 v2
Test#1 (Integers)
18.05k
6.75k (x0.37)
Test#2 (FP)
26.13k
6.05k (x0.23)
Test#3 (Generic, ZIP)
13.92k
2.61k (x0.19)
Test#1 (Memory)
21.22k
2.26k (x0.11)
TOTAL
79.32k
17.68k (x0.22)

Multithread

i7-11700

E5-2651 v2
Test#1 (Integers)
160.49k
168.18k (x1.05)
Test#2 (FP)
225.25k
159.6k (x0.71)
Test#3 (Generic, ZIP)
113.88k
77.04k (x0.68)
Test#1 (Memory)
10.64k
10.19k (x0.96)
TOTAL
510.25k
415.01k (x0.81)

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
i7-11700
E5-2651 v2
Test#1 (Integers)
18.96k
6.69k (x0.35)
Test#2 (FP)
28.34k
6.35k (x0.22)
Test#3 (Generic, ZIP)
13.26k
2.54k (x0.19)
Test#1 (Memory)
20.2k
2.17k (x0.11)
TOTAL
80.76k
17.75k (x0.22)

Multithread

i7-11700

E5-2651 v2
Test#1 (Integers)
164.31k
165.17k (x1.01)
Test#2 (FP)
253.96k
176.85k (x0.7)
Test#3 (Generic, ZIP)
115.28k
73.91k (x0.64)
Test#1 (Memory)
10.65k
10.25k (x0.96)
TOTAL
544.2k
426.18k (x0.78)

Performance/W
i7-11700
E5-2651 v2
Test#1 (Integers)
2528 points/W