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Core i5-520M vs Pentium 4405U


Description
The i5-520M is based on Westmere architecture while the 4405U is based on Skylake.

Using the multithread performance as a reference, the i5-520M gets a score of 26.3 k points while the 4405U gets 51.1 k points.

Summarizing, the 4405U is 1.9 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
406e3
Core
Arrandale
Skylake-U
Architecture
Base frecuency
2.4 GHz
2.1 GHz
Boost frecuency
2.933 GHz
2.1 GHz
Socket
FC-PGA 988
BGA 1356
Cores/Threads
2/4
2/4
TDP
35 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
2048 kB
Date
January 2010
Mean monothread perf.
13.1k points
23.33k points
Mean multithread perf.
26.27k points
51.1k 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
4405U
Test#1 (Integers)
5.41k
7.45k (x1.38)
Test#2 (FP)
3.69k
10.51k (x2.85)
Test#3 (Generic, ZIP)
2.12k
2.78k (x1.31)
Test#1 (Memory)
1.88k
2.59k (x1.38)
TOTAL
13.1k
23.33k (x1.78)

Multithread

i5-520M

4405U
Test#1 (Integers)
10.7k
16.1k (x1.5)
Test#2 (FP)
7.91k
25.44k (x3.22)
Test#3 (Generic, ZIP)
5.08k
6.99k (x1.37)
Test#1 (Memory)
2.58k
2.58k (x1)
TOTAL
26.27k
51.1k (x1.95)

Performance/W
i5-520M
4405U
Test#1 (Integers)
306 points/W
1073 points/W
Test#2 (FP)
226 points/W
1696 points/W
Test#3 (Generic, ZIP)
145 points/W
466 points/W
Test#1 (Memory)
74 points/W
172 points/W
TOTAL
751 points/W
3407 points/W

Performance/GHz
i5-520M
4405U
Test#1 (Integers)
1844 points/GHz
3547 points/GHz
Test#2 (FP)
1259 points/GHz
5007 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
1324 points/GHz
Test#1 (Memory)
641 points/GHz
1232 points/GHz
TOTAL
4466 points/GHz
11109 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