KeyShot Forum

Technical discussions => General discussion => Topic started by: elinasar on June 17, 2014, 08:52:01 PM

Title: more cores or faster cores?
Post by: elinasar on June 17, 2014, 08:52:01 PM
Hi all, a really fast technical question: at a hardware level what is more important for the realtime rendering view performance (just the realtime render), more cores or faster cores? Does the graphic card here matter at all?  We are trying to decide on which new machine to buy.

Thanks for the help!
Title: Re: more cores or faster cores?
Post by: DriesV on June 17, 2014, 09:48:48 PM
Quote from: elinasar on June 17, 2014, 08:52:01 PM
more cores or faster cores?
I'd say cores over clock speed. However, both are important considerations.
Dual Xeon E5-2697 v2 (24 cores @ 2.7GHz) will be faster than dual Xeon E5-2687W v2 (16 cores @ 3.4GHz) for rendering.

Quote from: elinasar on June 17, 2014, 08:52:01 PM
Does the graphic card here matter at all?
Any graphics card should do. Expect no difference in performance between Quadro K2000 and K6000.

Dries
Title: Re: more cores or faster cores?
Post by: dunk on June 22, 2014, 11:17:23 AM
Overall I would go with more cores because you get cache memory assigned which would help process the data from the bus quicker, and you would have the option of clocking it. You cant add more cores to a high Hz chip but you can increase the speed with cores, as well as using hyper thread. I suppose you have also got the option to run other programs whilst working with keyshot when you have multiple cores.
Title: Re: more cores or faster cores?
Post by: andy.engelkemier on June 23, 2014, 04:00:11 AM
one more confusing thing to consider is processor age. Due to newer instruction sets, and good programming which utilizes it, newer processors with the same number of cores and same speed will actually render considerably faster.
So if you're looking at a few different processors, I'd pick a newer processor over an older one. They also may even fit on the same motherboard. If you're picking that as well, the same thing applies. It makes computer shopping Very confusing. But as a general rule, newer ends up being a better solution for you.

And don't forget about hyper threading. It's a must. Don't compare a cpu that has 6 cores, and 8 cores if one doesn't have hyperthreading.
Title: Re: more cores or faster cores?
Post by: elinasar on June 26, 2014, 06:57:15 AM
Thanks everyone for the replies! So  the realtime rendering also takes advantage of the multithread?
Title: Re: more cores or faster cores?
Post by: TpwUK on June 26, 2014, 07:02:22 AM
Yes it does :)

Martin