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Core i7-720QM vs Core Duo T2450


Description
The i7-720QM is based on Nehalem architecture while the T2450 is based on Mobile.

Using the multithread performance as a reference, the i7-720QM gets a score of 38.8 k points while the T2450 gets 11.4 k points.

Summarizing, the i7-720QM is 3.4 times faster than the T2450. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106e5
6ec
Core
Clarksfield
Yonah
Architecture
Nehalem
Base frecuency
1.6 GHz
2 GHz
Boost frecuency
2.8 GHz
2 GHz
Socket
988-pin micro-FCPGA8
micro FC-PGA 478-pin
Cores/Threads
4/8
2/2
TDP
45 W
W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2048 kB
Cache L3
6144 kB
kB
Date
September 2009
Mean monothread perf.
13.13k points
6.49k points
Mean multithread perf.
38.78k points
11.37k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-720QM
T2450
Test#1 (Integers)
1.49k
1.04k (x0.69)
Test#2 (FP)
3.4k
1.85k (x0.54)
Test#3 (Generic, ZIP)
1.95k
1.76k (x0.9)
Test#1 (Memory)
2.08k
0.97k (x0.47)
TOTAL
8.92k
5.62k (x0.63)

Multithread

i7-720QM

T2450
Test#1 (Integers)
4.23k
1.78k (x0.42)
Test#2 (FP)
11.4k
3.51k (x0.31)
Test#3 (Generic, ZIP)
7.17k
3.05k (x0.43)
Test#1 (Memory)
4.51k
0.94k (x0.21)
TOTAL
27.32k
9.28k (x0.34)

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
i7-720QM
T2450
Test#1 (Integers)
5.49k
1.81k (x0.33)
Test#2 (FP)
3.55k
1.96k (x0.55)
Test#3 (Generic, ZIP)
2.01k
1.81k (x0.9)
Test#1 (Memory)
2.09k
0.9k (x0.43)
TOTAL
13.13k
6.49k (x0.49)

Multithread

i7-720QM

T2450
Test#1 (Integers)
15.06k
3.41k (x0.23)
Test#2 (FP)
12.15k
3.89k (x0.32)
Test#3 (Generic, ZIP)
7.18k
3.1k (x0.43)
Test#1 (Memory)
4.39k
0.97k (x0.22)
TOTAL
38.78k
11.37k (x0.29)

Performance/W
i7-720QM
T2450
Test#1 (Integers)
335 points/W