Acer 751. Popular netbook with mobile internet. | Laptops

Thursday, 20 August 2009 06:22 Laptopfreak

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Article Index
Acer 751. Popular netbook with mobile internet.
Specifications
Physical aspects
Physical aspects continued
Benchmark
Benchmark continued
Conclusion
All Pages

Page 6 of 7

The processor:

SuperPi

Super Pi calculates the number Pi with 1 million decimals. The result is a time in seconds, meaning that the lower the number, the better. This can be used for direct comparison with other laptops that have run the same test.

Both processors perform sort of middling in this test, but well enough for netbooks in any case. You will not notice much of a difference between the two outside benchmarks.

SiSoft Sandra CPU Arithmetic

SiSoft Sandra’s Whetstone and Drystone benchmark tests the processor’s ability to do pure number crunching, which occurs during gaming or different forms of picture editing. The measure is in Mflops (Millions Floating Point Operations Per Second) – the higher, the better.

Here the Acer falls short, but the HP does have a faster processor.

SiSoft Sandra CPU Multimedia

The multimedia test in SiSoft Sandra is calculated on a 2D figure. The output (it/s) is Mandelbrot iterations per second, i.e. the bigger the better.

Once again the HP wins, very much in line with the results in the previous test. Keep in mind the significant price difference though – the HP costs 33% more than the Acer, if not more.

RAM - SiSoft Sandra Memory Bandwidth:

Sisoft Sandra’s Memory Bandwidth benchmark is used to measure the speed of the RAM – the higher the value, the better.

I am surprised the difference is so large here...I expected Acer’s RAM to perform better, but it is far behind.

Hard drive performance - SiSoft Sandra Harddisk Read:

Sisoft Sandra’s hard drive test module is used to measure the performance of the hard drive. Sisoft Sandra runs a number of tests on the surface of the hard drive and calculates the average reading speed.

Here the HP falls short; Acer’s hard drive reads data almost twice as fast, which is always good.

GPU performance - 3Dmark

The 3Dmark tests show the performance in DirectX 9, and paint a picture of the performance in newer games and applications. No tests have been run in DirectX 10.1 (which both cards support).

One will have to expect more from the HP when it comes to graphics, and that is reflected in the test. Still, netbooks are never good for more graphically demanding tasks – such are better left to bigger and more powerful notebooks.

Overall performance

The PCMark 05 results can be compared directly with other laptops that have run the same PCMark version. The program produces a score from a test that includes the performance of the processor, RAM, hard drive, GPU, etc.

Neither of the two netbooks is capable of running PCMark05 due to lack of codecs and other things. Judging by the tests above though, I would say the HP should score slightly higher than the Acer.

OpenOffice test

Since we have tested several laptops which are so well-suited for student use, I have decided to run some tests in OpenOffice (freeware which has the same functions as Microsoft’s Office bundle).

Here are some load times to give you a bit of insight into how quickly the computer loads a standard application like OpenOffice. Most can compare it with the PCs they normally work on.

Time to start up: 11 seconds
Load of browser (IE): 5 seconds