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Core i5-520M vs Xeon E5-4640


Description
The i5-520M is based on Westmere architecture while the E5-4640 is based on Sandy Bridge.

Using the multithread performance as a reference, the i5-520M gets a score of 33.1 k points while the E5-4640 gets 581.6 k points.

Summarizing, the E5-4640 is 17.6 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
206d7
Core
Arrandale
Sandy Bridge-EP
Architecture
Base frecuency
2.4 GHz
2.4 GHz
Boost frecuency
2.933 GHz
2.8 GHz
Socket
FC-PGA 988
LGA 2011
Cores/Threads
2/4
8 /16
TDP
35 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
8x32+8x32 kB
Cache L2
2x256 kB
8x256 kB
Cache L3
3072 kB
20480 kB
Date
January 2010
May 2012
Mean monothread perf.
15.93k points
13.88k points
Mean multithread perf.
33.14k points
610.16k 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
E5-4640
Test#1 (Integers)
6.67k
6.19k (x0.93)
Test#2 (FP)
4.59k
5.89k (x1.28)
Test#3 (Generic, ZIP)
2.49k
2.11k (x0.85)
Test#1 (Memory)
2.18k
2.51k (x1.15)
TOTAL
15.93k
16.7k (x1.05)

Multithread

i5-520M

E5-4640
Test#1 (Integers)
13.75k
244.88k (x17.81)
Test#2 (FP)
10.03k
215.35k (x21.47)
Test#3 (Generic, ZIP)
6.67k
114.64k (x17.18)
Test#1 (Memory)
2.68k
6.76k (x2.52)
TOTAL
33.14k
581.63k (x17.55)

Performance/W
i5-520M
E5-4640
Test#1 (Integers)
393 points/W
2578 points/W
Test#2 (FP)
287 points/W
2267 points/W
Test#3 (Generic, ZIP)
191 points/W
1207 points/W
Test#1 (Memory)
77 points/W
71 points/W
TOTAL
947 points/W
6122 points/W

Performance/GHz
i5-520M
E5-4640
Test#1 (Integers)
2275 points/GHz
2210 points/GHz
Test#2 (FP)
1567 points/GHz
2105 points/GHz
Test#3 (Generic, ZIP)
849 points/GHz
755 points/GHz
Test#1 (Memory)
742 points/GHz
895 points/GHz
TOTAL
5433 points/GHz
5966 points/GHz

Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.

Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.

If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4