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Core i7-640LM vs Xeon L5430


Description
The i7-640LM is based on Westmere architecture while the L5430 is based on Core.

Using the multithread performance as a reference, the i7-640LM gets a score of 31.7 k points while the L5430 gets 51.6 k points.

Summarizing, the L5430 is 1.6 times faster than the i7-640LM. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20655
1067a
Core
Calpella
Harpertown
Architecture
Base frecuency
2.133 GHz
2.667 GHz
Boost frecuency
2.667 GHz
2.667 GHz
Socket
BGA1288
Socket 771
Cores/Threads
2/4
4/4
TDP
25 W
50 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
2x6144 kB
Cache L3
4096 kB
0 kB
Date
January 2010
September 2008
Mean monothread perf.
16.35k points
15.62k points
Mean multithread perf.
31.74k points
51.64k 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
i7-640LM
L5430
Test#1 (Integers)
7.01k
3.09k (x0.44)
Test#2 (FP)
4.58k
6.86k (x1.5)
Test#3 (Generic, ZIP)
2.73k
2.66k (x0.97)
Test#1 (Memory)
2.03k
3.01k (x1.48)
TOTAL
16.35k
15.62k (x0.96)

Multithread

i7-640LM

L5430
Test#1 (Integers)
12.93k
12.4k (x0.96)
Test#2 (FP)
10.21k
27.27k (x2.67)
Test#3 (Generic, ZIP)
6.22k
10.41k (x1.67)
Test#1 (Memory)
2.37k
1.57k (x0.66)
TOTAL
31.74k
51.64k (x1.63)

Performance/W
i7-640LM
L5430
Test#1 (Integers)
517 points/W
248 points/W
Test#2 (FP)
409 points/W
545 points/W
Test#3 (Generic, ZIP)
249 points/W
208 points/W
Test#1 (Memory)
95 points/W
31 points/W
TOTAL
1269 points/W
1033 points/W

Performance/GHz
i7-640LM
L5430
Test#1 (Integers)
2627 points/GHz
1160 points/GHz
Test#2 (FP)
1718 points/GHz
2573 points/GHz
Test#3 (Generic, ZIP)
1024 points/GHz
996 points/GHz
Test#1 (Memory)
762 points/GHz
1128 points/GHz
TOTAL
6130 points/GHz
5858 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