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Core 2 Duo P8400 vs Core i5-460 M


Description
The P8400 is based on Core architecture while the i5-460 M is based on Westmere.

Using the multithread performance as a reference, the P8400 gets a score of 21 k points while the i5-460 M gets 33.7 k points.

Summarizing, the i5-460 M is 1.6 times faster than the P8400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
10676
20655
Core
Peryn-3M
Arrandale
Architecture
Base frecuency
2.267 GHz
2.533 GHz
Boost frecuency
2.267 GHz
2.8 GHz
Socket
Socket P
PGA 988A
Cores/Threads
2/2
2/4
TDP
25 W
35 W
Cache L1 (d+i)
2x32 kB
2x32+2x32 kB
Cache L2
3072 kB
2x256 kB
Cache L3
0 kB
3072 kB
Date
July 2008
September 2010
Mean monothread perf.
11.38k points
16.32k points
Mean multithread perf.
21.02k points
33.69k 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
P8400
i5-460 M
Test#1 (Integers)
2.43k
6.85k (x2.82)
Test#2 (FP)
5.4k
4.64k (x0.86)
Test#3 (Generic, ZIP)
2.13k
2.72k (x1.28)
Test#1 (Memory)
1.43k
2.1k (x1.47)
TOTAL
11.38k
16.32k (x1.43)

Multithread

P8400

i5-460 M
Test#1 (Integers)
4.81k
13.71k (x2.85)
Test#2 (FP)
10.58k
10.68k (x1.01)
Test#3 (Generic, ZIP)
4.18k
6.65k (x1.59)
Test#1 (Memory)
1.45k
2.65k (x1.83)
TOTAL
21.02k
33.69k (x1.6)

Performance/W
P8400
i5-460 M
Test#1 (Integers)
193 points/W
392 points/W
Test#2 (FP)
423 points/W
305 points/W
Test#3 (Generic, ZIP)
167 points/W
190 points/W
Test#1 (Memory)
58 points/W
76 points/W
TOTAL
841 points/W
962 points/W

Performance/GHz
P8400
i5-460 M
Test#1 (Integers)
1071 points/GHz
2447 points/GHz
Test#2 (FP)
2383 points/GHz
1658 points/GHz
Test#3 (Generic, ZIP)
938 points/GHz
971 points/GHz
Test#1 (Memory)
629 points/GHz
751 points/GHz
TOTAL
5022 points/GHz
5827 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