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Core i5-M 540 vs Core 2 Duo E8400


Description
The i5-M 540 is based on Westmere architecture while the E8400 is based on Core.

Using the multithread performance as a reference, the i5-M 540 gets a score of 29.5 k points while the E8400 gets 27.1 k points.

Summarizing, the i5-M 540 is 1.1 times faster than the E8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20652
1067a
Core
Arrandale
Wolfdale
Architecture
Base frecuency
1.2 GHz
3 GHz
Boost frecuency
2.8 GHz
3 GHz
Socket
FC-PGA10
LGA 775
Cores/Threads
2/4
2/2
TDP
35 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
6144 kB
Cache L3
3072 kB
0 kB
Date
January 2010
January 2008
Mean monothread perf.
15.05k points
17.28k points
Mean multithread perf.
29.54k points
27.11k 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
i5-M 540
E8400
Test#1 (Integers)
6.7k
3.3k (x0.49)
Test#2 (FP)
4.54k
7.28k (x1.6)
Test#3 (Generic, ZIP)
2.48k
2.88k (x1.16)
Test#1 (Memory)
1.32k
3.83k (x2.9)
TOTAL
15.05k
17.28k (x1.15)

Multithread

i5-M 540

E8400
Test#1 (Integers)
12.27k
6.3k (x0.51)
Test#2 (FP)
9.7k
13.71k (x1.41)
Test#3 (Generic, ZIP)
5.97k
5.32k (x0.89)
Test#1 (Memory)
1.59k
1.78k (x1.12)
TOTAL
29.54k
27.11k (x0.92)

Performance/W
i5-M 540
E8400
Test#1 (Integers)
351 points/W
97 points/W
Test#2 (FP)
277 points/W
211 points/W
Test#3 (Generic, ZIP)
171 points/W
82 points/W
Test#1 (Memory)
46 points/W
27 points/W
TOTAL
844 points/W
417 points/W

Performance/GHz
i5-M 540
E8400
Test#1 (Integers)
2394 points/GHz
1099 points/GHz
Test#2 (FP)
1622 points/GHz
2426 points/GHz
Test#3 (Generic, ZIP)
885 points/GHz
959 points/GHz
Test#1 (Memory)
473 points/GHz
1278 points/GHz
TOTAL
5373 points/GHz
5762 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