Core 2 Duo T6400 vs Core i7-640LM
Description
The T6400 is based on Core architecture while the i7-640LM is based on Westmere.
Using the multithread performance as a reference, the T6400 gets a score of 17.1 k points while the i7-640LM gets 31.7 k points.
Summarizing, the i7-640LM is 1.9 times faster than the T6400. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the T6400 gets a score of 17.1 k points while the i7-640LM gets 31.7 k points.
Summarizing, the i7-640LM 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
20655
Core
Penryn-3M
Calpella
Base frecuency
2 GHz
2.133 GHz
Boost frecuency
2 GHz
2.667 GHz
Socket
FC-PGA
BGA1288
Cores/Threads
2/2
2/4
TDP
35 W
25 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2048 kB
2x256 kB
Cache L3
0 kB
4096 kB
Date
January 2009
January 2010
Mean monothread perf.
10.08k points
16.35k points
Mean multithread perf.
17.08k 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
T6400
i7-640LM
Test#1 (Integers)
2.26k
7.01k (x3.1)
Test#2 (FP)
4.98k
4.58k (x0.92)
Test#3 (Generic, ZIP)
1.89k
2.73k (x1.45)
Test#1 (Memory)
0.96k
2.03k (x2.13)
TOTAL
10.08k
16.35k (x1.62)
Multithread
T6400
i7-640LM
Test#1 (Integers)
4.06k
12.93k (x3.18)
Test#2 (FP)
8.53k
10.21k (x1.2)
Test#3 (Generic, ZIP)
3.38k
6.22k (x1.84)
Test#1 (Memory)
1.11k
2.37k (x2.12)
TOTAL
17.08k
31.74k (x1.86)
Performance/W
T6400
i7-640LM
Test#1 (Integers)
116 points/W
517 points/W
Test#2 (FP)
244 points/W
409 points/W
Test#3 (Generic, ZIP)
96 points/W
249 points/W
Test#1 (Memory)
32 points/W
95 points/W
TOTAL
488 points/W
1269 points/W
Performance/GHz
T6400
i7-640LM
Test#1 (Integers)
1128 points/GHz
2627 points/GHz
Test#2 (FP)
2491 points/GHz
1718 points/GHz
Test#3 (Generic, ZIP)
944 points/GHz
1024 points/GHz
Test#1 (Memory)
478 points/GHz
762 points/GHz
TOTAL
5040 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