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Pentium Dual-Core T4500 vs Core i7-640LM


Description
The T4500 is based on Core architecture while the i7-640LM is based on Westmere.

Using the multithread performance as a reference, the T4500 gets a score of 23 k points while the i7-640LM gets 31.7 k points.

Summarizing, the i7-640LM is 1.4 times faster than the T4500. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
20655
Core
Penryn-3M
Calpella
Architecture
Base frecuency
2.3 GHz
2.133 GHz
Boost frecuency
2.3 GHz
2.667 GHz
Socket
Socket P
BGA1288
Cores/Threads
2/2
2/4
TDP
35 W
25 W
Cache L1 (d+i)
32+32 kB
2x32+2x32 kB
Cache L2
1024 kB
2x256 kB
Cache L3
0 kB
4096 kB
Date
January 2010
January 2010
Mean monothread perf.
12.07k points
16.35k points
Mean multithread perf.
23.03k 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
T4500
i7-640LM
Test#1 (Integers)
2.63k
7.01k (x2.66)
Test#2 (FP)
5.88k
4.58k (x0.78)
Test#3 (Generic, ZIP)
2.36k
2.73k (x1.16)
Test#1 (Memory)
1.19k
2.03k (x1.71)
TOTAL
12.07k
16.35k (x1.36)

Multithread

T4500

i7-640LM
Test#1 (Integers)
5.27k
12.93k (x2.46)
Test#2 (FP)
11.69k
10.21k (x0.87)
Test#3 (Generic, ZIP)
4.73k
6.22k (x1.32)
Test#1 (Memory)
1.35k
2.37k (x1.76)
TOTAL
23.03k
31.74k (x1.38)

Performance/W
T4500
i7-640LM
Test#1 (Integers)
150 points/W
517 points/W
Test#2 (FP)
334 points/W
409 points/W
Test#3 (Generic, ZIP)
135 points/W
249 points/W
Test#1 (Memory)
38 points/W
95 points/W
TOTAL
658 points/W
1269 points/W

Performance/GHz
T4500
i7-640LM
Test#1 (Integers)
1144 points/GHz
2627 points/GHz
Test#2 (FP)
2558 points/GHz
1718 points/GHz
Test#3 (Generic, ZIP)
1028 points/GHz
1024 points/GHz
Test#1 (Memory)
516 points/GHz
762 points/GHz
TOTAL
5246 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