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Core i5-520M vs Xeon E5-2651 v2


Description
The i5-520M is based on Westmere architecture while the E5-2651 v2 is based on Ivy Bridge.

Using the multithread performance as a reference, the i5-520M gets a score of 33.1 k points while the E5-2651 v2 gets 415 k points.

Summarizing, the E5-2651 v2 is 12.5 times faster than the i5-520M. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20652
306e4
Core
Arrandale
Ivy Bridge-EP
Architecture
Base frecuency
2.4 GHz
1.8 GHz
Boost frecuency
2.933 GHz
2.2 GHz
Socket
FC-PGA 988
LGA 2011
Cores/Threads
2/4
12/24
TDP
35 W
W
Cache L1 (d+i)
2x32+2x32 kB
12x32+12x32 kB
Cache L2
2x256 kB
12x256 kB
Cache L3
3072 kB
30720 kB
Date
January 2010
October 2013
Mean monothread perf.
15.93k points
17.75k points
Mean multithread perf.
33.14k 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
i5-520M
E5-2651 v2
Test#1 (Integers)
6.67k
6.75k (x1.01)
Test#2 (FP)
4.59k
6.05k (x1.32)
Test#3 (Generic, ZIP)
2.49k
2.61k (x1.05)
Test#1 (Memory)
2.18k
2.26k (x1.04)
TOTAL
15.93k
17.68k (x1.11)

Multithread

i5-520M

E5-2651 v2
Test#1 (Integers)
13.75k
168.18k (x12.23)
Test#2 (FP)
10.03k
159.6k (x15.91)
Test#3 (Generic, ZIP)
6.67k
77.04k (x11.54)
Test#1 (Memory)
2.68k
10.19k (x3.8)
TOTAL
33.14k
415.01k (x12.52)

Performance/W
i5-520M
E5-2651 v2
Test#1 (Integers)
393 points/W