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Core i5-520M vs Pentium N3540


Description
The i5-520M is based on Westmere architecture while the N3540 is based on Silvermont.

Using the multithread performance as a reference, the i5-520M gets a score of 33.1 k points while the N3540 gets 37.5 k points.

Summarizing, the N3540 is 1.1 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
30678
Core
Arrandale
Bay Trail-M
Architecture
Base frecuency
2.4 GHz
2.167 GHz
Boost frecuency
2.933 GHz
2.667 GHz
Socket
FC-PGA 988
BGA1170
Cores/Threads
2/4
4/4
TDP
35 W
7,5 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x24 kB
Cache L2
2x256 kB
2x1024 kB
Cache L3
3072 kB
kB
Date
January 2010
July 2014
Mean monothread perf.
15.93k points
10.72k points
Mean multithread perf.
33.14k points
37.5k 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
N3540
Test#1 (Integers)
6.67k
4.97k (x0.75)
Test#2 (FP)
4.59k
2.58k (x0.56)
Test#3 (Generic, ZIP)
2.49k
1.98k (x0.79)
Test#1 (Memory)
2.18k
1.2k (x0.55)
TOTAL
15.93k
10.72k (x0.67)

Multithread

i5-520M

N3540
Test#1 (Integers)
13.75k
18.92k (x1.38)
Test#2 (FP)
10.03k
9.67k (x0.96)
Test#3 (Generic, ZIP)
6.67k
7.37k (x1.1)
Test#1 (Memory)
2.68k
1.54k (x0.57)
TOTAL
33.14k
37.5k (x1.13)

Performance/W
i5-520M
N3540
Test#1 (Integers)
393 points/W
2703 points/W
Test#2 (FP)
287 points/W
1382 points/W
Test#3 (Generic, ZIP)
191 points/W
1053 points/W
Test#1 (Memory)
77 points/W
220 points/W
TOTAL
947 points/W
5357 points/W

Performance/GHz
i5-520M
N3540
Test#1 (Integers)
2275 points/GHz
1864 points/GHz
Test#2 (FP)
1567 points/GHz
967 points/GHz
Test#3 (Generic, ZIP)
849 points/GHz
741 points/GHz
Test#1 (Memory)
742 points/GHz
448 points/GHz
TOTAL
5433 points/GHz
4020 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