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CPU : effects of memory speed and hyper threading

Alain Decamps
Hi

My (older) CPU (2500k 4 cores, no hyperthreading) runs at 100% while drawing masks in c1, while my GPU (AMD 7870) only gets at 50%.
I'm serious thinking about upgrading to a new computer, but have some questions that maybe someone has tested/seen before :

Will capture one benefit from hyper threading? I'm thinking about a Intel Core i7-4790K or Intel Core i7-6700K.
For the cores itself I expect a speed boost of about 30%, but if hyperthreading is used "good" by c1 it could be another 50% increase.


Has the RAM speed a noticeable effect on capture one?

An alternative could be a E type processor, that has 6 cores, but each core is slower.

thanks,

Alain
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Comments

7 comments

Date Votes
  • Andriy.Okhrimets
    Hi, just a fast reccomendantation have a machine at least with 16 or 32 GB or RAM if you messing up with layers. And get SSD instead of HDD, this two things impact performance much higher then more cores or hyperthreading. BTW hyperthreading still uses same cores, so it is virtual and has only small impact on such apps as C1.
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  • Alain Decamps
    [quote="Andriy.Okhrimets" wrote:
    Hi, just a fast reccomendantation have a machine at least with 16 or 32 GB or RAM if you messing up with layers. And get SSD instead of HDD, this two things impact performance much higher then more cores or hyperthreading. BTW hyperthreading still uses same cores, so it is virtual and has only small impact on such apps as C1.


    Hi

    I'm using a SSD (the most important speed improvement) and I see that not all ram is used (with quite some margin).
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  • Andriy.Okhrimets
    How much RAM you have. It is just because C1 is not allowed to use all free memory by OS. If less then 8 GB then probably it is greatly impacting your speed.
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  • Alain Decamps
    Hi

    I have 8GB and I'm seeing the 100% CPU use even when C1 is "only" using 4GB or so and it doesn't feel like a low memory problem.

    I'm a little bit disappointed that the hyper threading would give not much. For a 30% speed increase it' s a lot of work (and money too).
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  • NNN635079828442104783
    you could see if you can overclock with your motherboard, 4.5ghz seems to be where the i5 and i7 since (and including) sandybridge to now seem to top out, with not much actual performance difference between them at speed.

    If you need a big step in performance, then going 6 or 8 core is the way to go currently - if the program is that threaded.
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  • Christian Gruner
    Hyperthreading is more a marketing gimmick than something that will actually give you raw performance. Instead, go for more physical cores, a fast disk, and a powerful graphics-card.
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  • Alain Decamps
    [quote="Christian Gruner" wrote:
    Hyperthreading is more a marketing gimmick than something that will actually give you raw performance. Instead, go for more physical cores, a fast disk, and a powerful graphics-card.


    Thanks
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