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Core 2 Duo T6400 vs Core i5-520M


Description
The T6400 is based on Core architecture while the i5-520M is based on Westmere.

Using the multithread performance as a reference, the T6400 gets a score of 17.1 k points while the i5-520M gets 33.1 k points.

Summarizing, the i5-520M is 1.9 times faster than the T6400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
20652
Core
Penryn-3M
Arrandale
Architecture
Base frecuency
2 GHz
2.4 GHz
Boost frecuency
2 GHz
2.933 GHz
Socket
FC-PGA
FC-PGA 988
Cores/Threads
2/2
2/4
TDP
35 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2048 kB
2x256 kB
Cache L3
0 kB
3072 kB
Date
January 2009
January 2010
Mean monothread perf.
10.08k points
15.93k points
Mean multithread perf.
17.08k points
33.14k 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
T6400
i5-520M
Test#1 (Integers)
2.26k
6.67k (x2.96)
Test#2 (FP)
4.98k
4.59k (x0.92)
Test#3 (Generic, ZIP)
1.89k
2.49k (x1.32)
Test#1 (Memory)
0.96k
2.18k (x2.28)
TOTAL
10.08k
15.93k (x1.58)

Multithread

T6400

i5-520M
Test#1 (Integers)
4.06k
13.75k (x3.38)
Test#2 (FP)
8.53k
10.03k (x1.18)
Test#3 (Generic, ZIP)
3.38k
6.67k (x1.98)
Test#1 (Memory)
1.11k
2.68k (x2.41)
TOTAL
17.08k
33.14k (x1.94)

Performance/W
T6400
i5-520M
Test#1 (Integers)
116 points/W
393 points/W
Test#2 (FP)
244 points/W
287 points/W
Test#3 (Generic, ZIP)
96 points/W
191 points/W
Test#1 (Memory)
32 points/W
77 points/W
TOTAL
488 points/W
947 points/W

Performance/GHz
T6400
i5-520M
Test#1 (Integers)
1128 points/GHz
2275 points/GHz
Test#2 (FP)
2491 points/GHz
1567 points/GHz
Test#3 (Generic, ZIP)
944 points/GHz
849 points/GHz
Test#1 (Memory)
478 points/GHz
742 points/GHz
TOTAL
5040 points/GHz
5433 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