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Core i3-5005U vs Xeon E5-2651 v2


Description
The i3-5005U is based on Broadwell architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i3-5005U gets a score of 47.9 k points while the E5-2651 v2 gets 426.2 k points.

Summarizing, the E5-2651 v2 is 8.9 times faster than the i3-5005U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306d4
306e4
Core
Broadwell-U
Ivy Bridge-EP
Architecture
Base frecuency
2 GHz
1.8 GHz
Boost frecuency
2 GHz
2.2 GHz
Socket
LGA 2011
Cores/Threads
2 /2
12/24
TDP
15 W
W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
256 kB
12x256 kB
Cache L3
3072 kB
30720 kB
Date
March 2015
October 2013
Mean monothread perf.
25.61k points
17.75k points
Mean multithread perf.
54.99k 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
i3-5005U
E5-2651 v2
Test#1 (Integers)
6.24k
6.69k (x1.07)
Test#2 (FP)
8.82k
6.35k (x0.72)
Test#3 (Generic, ZIP)
2.38k
2.54k (x1.07)
Test#1 (Memory)
2.4k
2.17k (x0.9)
TOTAL
19.84k
17.75k (x0.89)

Multithread

i3-5005U

E5-2651 v2
Test#1 (Integers)
12.33k
165.17k (x13.39)
Test#2 (FP)
25.82k
176.85k (x6.85)
Test#3 (Generic, ZIP)
6.56k
73.91k (x11.27)
Test#1 (Memory)
3.18k
10.25k (x3.22)
TOTAL
47.89k
426.18k (x8.9)

Performance/W
i3-5005U
E5-2651 v2
Test#1 (Integers)
822 points/W