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Pentium 4 HT 531 vs Core i5-520M


Description
The 531 is based on NetBurst architecture while the i5-520M is based on Westmere.

Using the multithread performance as a reference, the 531 gets a score of 8.9 k points while the i5-520M gets 26.3 k points.

Summarizing, the i5-520M is 3 times faster than the 531. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f41
20655
Core
Prescott
Arrandale
Architecture
Base frecuency
3 GHz
2.4 GHz
Boost frecuency
3 GHz
2.933 GHz
Socket
LGA 775
FC-PGA 988
Cores/Threads
1/2
2/4
TDP
84 W
35 W
Cache L1 (d+i)
8+8 kB
2x32+2x32 kB
Cache L2
1024 kB
2x256 kB
Cache L3
0 kB
3072 kB
Date
2004
January 2010
Mean monothread perf.
7.95k points
13.1k points
Mean multithread perf.
8.95k 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
531
i5-520M
Test#1 (Integers)
2.1k
5.41k (x2.57)
Test#2 (FP)
3.33k
3.69k (x1.11)
Test#3 (Generic, ZIP)
1.6k
2.12k (x1.33)
Test#1 (Memory)
0.91k
1.88k (x2.06)
TOTAL
7.95k
13.1k (x1.65)

Multithread

531

i5-520M
Test#1 (Integers)
1.89k
10.7k (x5.65)
Test#2 (FP)
4.23k
7.91k (x1.87)
Test#3 (Generic, ZIP)
1.93k
5.08k (x2.63)
Test#1 (Memory)
0.89k
2.58k (x2.89)
TOTAL
8.95k
26.27k (x2.94)

Performance/W
531
i5-520M
Test#1 (Integers)
23 points/W
306 points/W
Test#2 (FP)
50 points/W
226 points/W
Test#3 (Generic, ZIP)
23 points/W
145 points/W
Test#1 (Memory)
11 points/W
74 points/W
TOTAL
106 points/W
751 points/W

Performance/GHz
531
i5-520M
Test#1 (Integers)
701 points/GHz
1844 points/GHz
Test#2 (FP)
1111 points/GHz
1259 points/GHz
Test#3 (Generic, ZIP)
534 points/GHz
723 points/GHz
Test#1 (Memory)
305 points/GHz
641 points/GHz
TOTAL
2650 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