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Core i5-460 M vs i7-640LM


Description
Both models i5-460 M and i7-640LM are based on Westmere architecture.



Using the multithread performance as a reference, the i5-460 M gets a score of 33.7 k points while the i7-640LM gets 31.7 k points.

Summarizing, the i5-460 M is 1.1 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20655
20655
Core
Arrandale
Calpella
Architecture
Base frecuency
2.533 GHz
2.133 GHz
Boost frecuency
2.8 GHz
2.667 GHz
Socket
PGA 988A
BGA1288
Cores/Threads
2/4
2/4
TDP
35 W
25 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
4096 kB
Date
September 2010
January 2010
Mean monothread perf.
16.32k points
16.35k points
Mean multithread perf.
33.69k points
31.74k 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
i5-460 M
i7-640LM
Test#1 (Integers)
6.85k
7.01k (x1.02)
Test#2 (FP)
4.64k
4.58k (x0.99)
Test#3 (Generic, ZIP)
2.72k
2.73k (x1)
Test#1 (Memory)
2.1k
2.03k (x0.97)
TOTAL
16.32k
16.35k (x1)

Multithread

i5-460 M

i7-640LM
Test#1 (Integers)
13.71k
12.93k (x0.94)
Test#2 (FP)
10.68k
10.21k (x0.96)
Test#3 (Generic, ZIP)
6.65k
6.22k (x0.94)
Test#1 (Memory)
2.65k
2.37k (x0.89)
TOTAL
33.69k
31.74k (x0.94)

Performance/W
i5-460 M
i7-640LM
Test#1 (Integers)
392 points/W
517 points/W
Test#2 (FP)
305 points/W
409 points/W
Test#3 (Generic, ZIP)
190 points/W
249 points/W
Test#1 (Memory)
76 points/W
95 points/W
TOTAL
962 points/W
1269 points/W

Performance/GHz
i5-460 M
i7-640LM
Test#1 (Integers)
2447 points/GHz
2627 points/GHz
Test#2 (FP)
1658 points/GHz
1718 points/GHz
Test#3 (Generic, ZIP)
971 points/GHz
1024 points/GHz
Test#1 (Memory)
751 points/GHz
762 points/GHz
TOTAL
5827 points/GHz
6130 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