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Core i5-450M vs i5-520M


Description
Both models i5-450M and i5-520M are based on Westmere architecture.



Using the multithread performance as a reference, the i5-450M gets a score of 29.1 k points while the i5-520M gets 26.3 k points.

Summarizing, the i5-450M 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
20655
20655
Core
Arrandale
Arrandale
Architecture
Base frecuency
2.4 GHz
2.4 GHz
Boost frecuency
2.667 GHz
2.933 GHz
Socket
Socket G1
FC-PGA 988
Cores/Threads
2/4
2/4
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
January 2010
Mean monothread perf.
12.93k points
13.1k points
Mean multithread perf.
29.1k points
26.27k 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
i5-450M
i5-520M
Test#1 (Integers)
5.4k
5.41k (x1)
Test#2 (FP)
3.7k
3.69k (x1)
Test#3 (Generic, ZIP)
2.06k
2.12k (x1.03)
Test#1 (Memory)
1.77k
1.88k (x1.06)
TOTAL
12.93k
13.1k (x1.01)

Multithread

i5-450M

i5-520M
Test#1 (Integers)
11.83k
10.7k (x0.9)
Test#2 (FP)
9.39k
7.91k (x0.84)
Test#3 (Generic, ZIP)
5.31k
5.08k (x0.96)
Test#1 (Memory)
2.58k
2.58k (x1)
TOTAL
29.1k
26.27k (x0.9)

Performance/W
i5-450M
i5-520M
Test#1 (Integers)
338 points/W
306 points/W
Test#2 (FP)
268 points/W
226 points/W
Test#3 (Generic, ZIP)
152 points/W
145 points/W
Test#1 (Memory)
74 points/W
74 points/W
TOTAL
831 points/W
751 points/W

Performance/GHz
i5-450M
i5-520M
Test#1 (Integers)
2024 points/GHz
1844 points/GHz
Test#2 (FP)
1388 points/GHz
1259 points/GHz
Test#3 (Generic, ZIP)
772 points/GHz
723 points/GHz
Test#1 (Memory)
665 points/GHz
641 points/GHz
TOTAL
4850 points/GHz
4466 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