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Processing cores.
Posted: Sun Nov 16, 2014 1:32 pm
by 1s1k52
I was struggling to explain this to a friend. I think it is either A. Because I really don't grasp it myself or B. I'm just bad at explaining things.
He is looking for a new computer and called to ask me about processors as I have been building and repairing them for awhile. When he asked me why a dual core had the same memory speed as a quad core I stated "The more cores the better as they divide the load of processes"
So someone smarter then me explain how aside from cache speeds. How is a 1.7 quad core theoretically "faster than a dual core 2.8 supposedly.
I know there are more than dual and quad cores. I am using this for the sake of this example
Re: Processing cores.
Posted: Sun Nov 16, 2014 4:12 pm
by gringo pistolero
Memory speed is independent of processor speed. Either can be a bottleneck.
As for cores, it's a poor analogy, but four pipes flowing 0.75 gpm each can fill a tank faster than two pipes flowing 1 gpm each.
Re: Processing cores.
Posted: Sun Nov 16, 2014 5:17 pm
by brhalltx
1s1k52 wrote:So someone smarter then me explain how aside from cache speeds. How is a 1.7 quad core theoretically "faster than a dual core 2.8 supposedly.
It may not be. There are many factors, including software. If the software can only use one core, then the 2.8 (assuming other factors like RAM, HD, OS are similar) will be faster.
Re: Processing cores.
Posted: Sun Nov 16, 2014 6:09 pm
by 1s1k52
brhalltx wrote:1s1k52 wrote:So someone smarter then me explain how aside from cache speeds. How is a 1.7 quad core theoretically "faster than a dual core 2.8 supposedly.
It may not be. There are many factors, including software. If the software can only use one core, then the 2.8 (assuming other factors like RAM, HD, OS are similar) will be faster.
Yeah that's another thing I have had in the back of my mind with all these multiple cores being added. I used to game a lot and not all programs and games will pull from multiple cores.
My wife's new laptop has windows 8.1 with a dual core 2.1? Processor 1mb cache 4gb of ram and it runs slower than Moises. Same exact setup running windows 7 runs perfectly fine. So I will be upgrading her to 8gb of ram I would like to think that will help for what she is doing
Re: Processing cores.
Posted: Wed Dec 10, 2014 12:16 pm
by bigity
4 gig of ram is horribly limiting on a 64 bit modern OS. You should see big improvements going to 8. More and more applications (games or not) are starting to utilize multiple cores so we should be seeing big improvements there as well.
Now if only SSDs would really get cheap and higher capacity.
Re: Processing cores.
Posted: Mon Dec 15, 2014 2:04 pm
by bigity
Russell wrote:SSD's are pretty darn cheap right now. I just picked up a 512 gig mx100 for $209. Great performance
Sounds like it's time to do some researching on them again :)
Re: Processing cores.
Posted: Mon Dec 15, 2014 2:51 pm
by 1s1k52
bigity wrote:Russell wrote:SSD's are pretty darn cheap right now. I just picked up a 512 gig mx100 for $209. Great performance
Sounds like it's time to do some researching on them again :)
Yeah all the black friday sales were crazy with SSDs. I know the performance is insanely better but I can't justify with the lack of space for any drives I have worth replacing.