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Bottleneck explained...

post #1 of 7
Thread Starter 
I do not fully understand what bottlenecks a machine I guess and would like a little help. I will be buying a cpu, mobo, and ram to go along with my ATI 6870. I think I will be getting a 960t as the reviews seem quit good. Looking for AM3+ price range on Mobo is $150ish and Ram $100ish

Thanks for the suggestions.
and if anyone could explain bottleneck Id appreciate it.
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post #2 of 7
watch this http://www.youtube.com/watch?v=TGdo75gasaQ
Edited by Jaxis - 2/19/12 at 10:22pm
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post #3 of 7
Different application require different aspects of the computer. First you need to look at how certain tasks are carried out.

The CPU is responsible for running serial tasks very fast and efficiently.
The GPU is responsible for running parallel tasks very fast and efficiently.

Now lets take a game. Most games are written with both serial code and parallel code. A lot of the rendering is parallel while the logic and physics are serial. When frames are rendered but of these rely on each other. When the CPU task is done for a frame and the GPU is still going, the CPU waits. The GPU in this case is bottlenecking the CPU. The same happens the other way around when the GPU is done it's work while the CPU is still going. You can also have a bottleneck with a slow hard drive when the GPU or CPU are waiting for instructions but the hard drive is taking a long time to give it to them.

Hope this helps.
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post #4 of 7
Thread Starter 
nice quick vid, thanks!
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post #5 of 7
 
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Thuban Powah!
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post #6 of 7
Hi :

-First HERE is a little video to understand

-Then , 100$ for ram (16gb i guess) is IMO a waste unless you have a really good reason for it , i would go for a 8gb kit (~40$) and use the money to buy better CPU or MOBO

thumb.gif
post #7 of 7
a good 8gb kit of ddr3 1600 shouldnt be much more then around $40-$50....and will give decent performance. G Skill is a very good ram brand and is usually not overly expensive and does overclock well too. I'd stick with the 990fx chipset and there are a ton of boards that run the 990fx chipset. its all in what you want. the 960t is a very good processor overall from what ive read.....just keep in mind that it may or may not unlock to a 6 core because the 5th and 6th cores may very well be bad. thats why amd locked the cores. if you could find a true thuban hexcore also a very good value/performance chip. then later on when piledriver comes you can decide if you want to buy a bulldozer or piledriver or just stick with a phenom 2. and just remember that you probably will want some overclocking headroom so you dont bottleneck your system and you should be golden. which is where deciding how you want to cool your system also becomes very important......air or water cooling, either with an effective cpu cooler would give you plenty of overclocking headroom on your cpu.
Edited by Dt_Freak1 - 2/20/12 at 5:11am
 
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Beautiful HoRyzen
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