Core i5-520M vs i7-640LM
Description
Both models i5-520M and i7-640LM are based on Westmere architecture.
Using the multithread performance as a reference, the i5-520M gets a score of 26.3 k points while the i7-640LM gets 31.7 k points.
Summarizing, the i7-640LM is 1.2 times faster than the i5-520M. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-520M gets a score of 26.3 k points while the i7-640LM gets 31.7 k points.
Summarizing, the i7-640LM is 1.2 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
Calpella
Base frecuency
2.4 GHz
2.133 GHz
Boost frecuency
2.933 GHz
2.667 GHz
Socket
FC-PGA 988
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
January 2010
January 2010
Mean monothread perf.
13.1k points
16.35k points
Mean multithread perf.
26.27k 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
i5-520M
i7-640LM
Test#1 (Integers)
5.41k
7.01k (x1.3)
Test#2 (FP)
3.69k
4.58k (x1.24)
Test#3 (Generic, ZIP)
2.12k
2.73k (x1.29)
Test#1 (Memory)
1.88k
2.03k (x1.08)
TOTAL
13.1k
16.35k (x1.25)
Multithread
i5-520M
i7-640LM
Test#1 (Integers)
10.7k
12.93k (x1.21)
Test#2 (FP)
7.91k
10.21k (x1.29)
Test#3 (Generic, ZIP)
5.08k
6.22k (x1.22)
Test#1 (Memory)
2.58k
2.37k (x0.92)
TOTAL
26.27k
31.74k (x1.21)
Performance/W
i5-520M
i7-640LM
Test#1 (Integers)
306 points/W
517 points/W
Test#2 (FP)
226 points/W
409 points/W
Test#3 (Generic, ZIP)
145 points/W
249 points/W
Test#1 (Memory)
74 points/W
95 points/W
TOTAL
751 points/W
1269 points/W
Performance/GHz
i5-520M
i7-640LM
Test#1 (Integers)
1844 points/GHz
2627 points/GHz
Test#2 (FP)
1259 points/GHz
1718 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
1024 points/GHz
Test#1 (Memory)
641 points/GHz
762 points/GHz
TOTAL
4466 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4