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Xeon E5-2651 v2 vs Core i7-6600U


Description
The E5-2651 v2 is based on Ivy Bridge architecture while the i7-6600U is based on Skylake.

Using the multithread performance as a reference, the E5-2651 v2 gets a score of 426.2 k points while the i7-6600U gets 45.1 k points.

Summarizing, the E5-2651 v2 is 9.5 times faster than the i7-6600U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306e4
406e3
Core
Ivy Bridge-EP
Skylake-U
Architecture
Base frecuency
1.8 GHz
2.6 GHz
Boost frecuency
2.2 GHz
3.4 GHz
Socket
LGA 2011
BGA1356
Cores/Threads
12/24
2/4
TDP
W
15 W
Cache L1 (d+i)
12x32+12x32 kB
2x32+2x32 kB
Cache L2
12x256 kB
2x256 kB
Cache L3
30720 kB
4096 kB
Date
October 2013
September 2015
Mean monothread perf.
17.75k points
39.73k points
Mean multithread perf.
426.18k points
79.22k 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
i7-6600U
Test#1 (Integers)
6.75k
6.76k (x1)
Test#2 (FP)
6.05k
9.58k (x1.58)
Test#3 (Generic, ZIP)
2.61k
2.46k (x0.94)
Test#1 (Memory)
2.26k
4.18k (x1.85)
TOTAL
17.68k
22.99k (x1.3)

Multithread

E5-2651 v2

i7-6600U
Test#1 (Integers)
168.18k
14.37k (x0.09)
Test#2 (FP)
159.6k
23.79k (x0.15)
Test#3 (Generic, ZIP)
77.04k
5.71k (x0.07)
Test#1 (Memory)
10.19k
4.29k (x0.42)
TOTAL
415.01k
48.16k (x0.12)

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
i7-6600U
Test#1 (Integers)
6.69k
8.49k (x1.27)
Test#2 (FP)
6.35k
10.92k (x1.72)
Test#3 (Generic, ZIP)
2.54k
2.76k (x1.09)
Test#1 (Memory)
2.17k
4.93k (x2.27)
TOTAL
17.75k
27.1k (x1.53)

Multithread

E5-2651 v2

i7-6600U
Test#1 (Integers)
165.17k
14.11k (x0.09)
Test#2 (FP)
176.85k
20.05k (x0.11)
Test#3 (Generic, ZIP)
73.91k
6.17k (x0.08)
Test#1 (Memory)
10.25k
4.73k (x0.46)
TOTAL
426.18k
45.05k (x0.11)

Performance/W
E5-2651 v2
i7-6600U
Test#1 (Integers)