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Pentium G645 vs Core i5-M 540


Description
The G645 is based on Sandy Bridge architecture while the i5-M 540 is based on Westmere.

Using the multithread performance as a reference, the G645 gets a score of 35.4 k points while the i5-M 540 gets 29.5 k points.

Summarizing, the G645 is 1.2 times faster than the i5-M 540. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
20652
Core
Sandy Bridge
Arrandale
Architecture
Base frecuency
2.9 GHz
1.2 GHz
Boost frecuency
2.9 GHz
2.8 GHz
Socket
LGA 1155
FC-PGA10
Cores/Threads
2/2
2/4
TDP
65 W
35 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
September 2012
January 2010
Mean monothread perf.
22.24k points
15.05k points
Mean multithread perf.
35.38k points
29.54k 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
G645
i5-M 540
Test#1 (Integers)
8.66k
6.7k (x0.77)
Test#2 (FP)
6.9k
4.54k (x0.66)
Test#3 (Generic, ZIP)
3.48k
2.48k (x0.71)
Test#1 (Memory)
3.2k
1.32k (x0.41)
TOTAL
22.24k
15.05k (x0.68)

Multithread

G645

i5-M 540
Test#1 (Integers)
14.06k
12.27k (x0.87)
Test#2 (FP)
11.82k
9.7k (x0.82)
Test#3 (Generic, ZIP)
5.83k
5.97k (x1.03)
Test#1 (Memory)
3.69k
1.59k (x0.43)
TOTAL
35.38k
29.54k (x0.83)

Performance/W
G645
i5-M 540
Test#1 (Integers)
216 points/W
351 points/W
Test#2 (FP)
182 points/W
277 points/W
Test#3 (Generic, ZIP)
90 points/W
171 points/W
Test#1 (Memory)
57 points/W
46 points/W
TOTAL
544 points/W
844 points/W

Performance/GHz
G645
i5-M 540
Test#1 (Integers)
2987 points/GHz
2394 points/GHz
Test#2 (FP)
2380 points/GHz
1622 points/GHz
Test#3 (Generic, ZIP)
1199 points/GHz
885 points/GHz
Test#1 (Memory)
1103 points/GHz
473 points/GHz
TOTAL
7669 points/GHz
5373 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