Author Topic: New PC: biggest bang for the buck?  (Read 94348 times)

Offline Earl_UK

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Re: New PC: biggest bang for the buck?
« Reply #225 on: 2014 September 08 08:48:05 »
do you run your os and apps of a SSD, this makes a huge improvement, then ram finally cpu

Offline tom886

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Re: New PC: biggest bang for the buck?
« Reply #226 on: 2014 September 10 08:49:58 »
Thanks, OS and Apps are installed on SSD.
Ok, first upgrade will be the RAM

Thanks again

CS
Tom

Offline avarakin

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Re: New PC: biggest bang for the buck?
« Reply #227 on: 2014 September 29 19:45:17 »
Probably it is too late for response about upgrade, but here it goes:
I run PI on 8gb of RAM and never saw a need for more memory because I never noticed swapping. 
I also doubt that Ssd would increase performance much.
PI is all about number crunching and for that you need CPU and not Ram or Ssd. Keep in mind that some CPUs have many slow cores (AMD) and some have fewer but faster cores (Intel) . For PI I would chose fewer but faster cores, i.e. Intel.
IMO i7 4770 and similar are the best choice right now. A CPU and motherboard would run for around $300 which is not much.

Alex

Offline georg.viehoever

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Re: New PC: biggest bang for the buck?
« Reply #228 on: 2014 September 30 01:22:44 »
...
I also doubt that Ssd would increase performance much.
PI is all about number crunching and for that you need CPU and not Ram or Ssd....
Alex,

you are right that number crunching is an important aspect of image processing. However, I/O performance is also important, especially for operations such as image calibration and stacking that need to read/write lots of data from/to disk. Also, PI appears to write to disk quite frequently, for instance to enable undo operations. Have a look at the PixInsight benchmark http://pixinsight.com/benchmark/ that clearly indicates that SSDs are beneficial - at least for this benchmark.

Georg
Georg (6 inch Newton, unmodified Canon EOS40D+80D, unguided EQ5 mount)