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Core i5-450M vs i5-2520M


Description
The i5-450M is based on Westmere architecture while the i5-2520M is based on Sandy Bridge.

Using the multithread performance as a reference, the i5-450M gets a score of 14.3 k points while the i5-2520M gets 34.2 k points.

Summarizing, the i5-2520M is 2.4 times faster than the i5-450M. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20655
206a7
Core
Arrandale
Sandy Bridge
Architecture
Base frecuency
2.4 GHz
2.5 GHz
Boost frecuency
2.667 GHz
3.2 GHz
Socket
Socket G1
BGA1023
Cores/Threads
2/4
2/2
TDP
35 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
June 2010
February 2011
Mean monothread perf.
12.93k points
24.13k points
Mean multithread perf.
29.1k points
50.23k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i5-450M
i5-2520M
Test#1 (Integers)
1.61k
2.69k (x1.66)
Test#2 (FP)
3.8k
7.28k (x1.92)
Test#3 (Generic, ZIP)
2.19k
3.84k (x1.75)
Test#1 (Memory)
1.65k
3.05k (x1.85)
TOTAL
9.25k
16.86k (x1.82)

Multithread

i5-450M

i5-2520M
Test#1 (Integers)
2.91k
6.08k (x2.09)
Test#2 (FP)
5.05k
16.15k (x3.2)
Test#3 (Generic, ZIP)
3.28k
8.87k (x2.7)
Test#1 (Memory)
3.07k
3.06k (x0.99)
TOTAL
14.31k
34.15k (x2.39)

Performance/W
i5-450M
i5-2520M
Test#1 (Integers)
83 points/W
174 points/W
Test#2 (FP)
144 points/W
461 points/W
Test#3 (Generic, ZIP)
94 points/W
253 points/W
Test#1 (Memory)
88 points/W
87 points/W
TOTAL
409 points/W
976 points/W

Performance/GHz
i5-450M
i5-2520M
Test#1 (Integers)
605 points/GHz
840 points/GHz
Test#2 (FP)
1424 points/GHz
2275 points/GHz
Test#3 (Generic, ZIP)
822 points/GHz
1200 points/GHz
Test#1 (Memory)
618 points/GHz
954 points/GHz
TOTAL
3469 points/GHz
5269 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