question for the techies

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Tighaman

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#1 Tighaman
Member since 2006 • 1038 Posts

If the bw of the ps4 is theorically 176gb for 8gb of ram we gonna say real world 170gb so we wont have any jimmies rustled but the game only uses 4.5 gb of ram so how much bw does a game really have when 20 gb of that bw automatically goes to the cpu?

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MonsieurX

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#2  Edited By MonsieurX
Member since 2008 • 39858 Posts

I'd say 4 potatoes

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commander

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#3  Edited By commander
Member since 2010 • 16217 Posts

@Tighaman said:

If the bw of the ps4 is theorically 176gb for 8gb of ram we gonna say real world 170gb so we wont have any jimmies rustled but the game only uses 4.5 gb of ram so how much bw does a game really have when 20 gb of that bw automatically goes to the cpu?

The bandwith has nothing to do with the amount of ram.

You could compare it with launching torpedo's, if you lauch one or 10, the maximum speed of the torpedoes won't increase or decrease because you launch more or less.

Or if you would have a firing squad for instance, if everyone has the same rifle, the speed of the bullets they shoot won't increase because you have more men (that have each a rifle ) in your firing squad. Every bullet will still have the same speed.

Same with the esram on the xboxone , it has a bandwith of 190 gb/sec (something like that) but it's only 32 mb of ram. If i would follow your reasoning this would never be possible, because the esram is such a small amount compared to the 8 gb gddr5 in the ps4 for example.

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freedomfreak

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#4 freedomfreak  Online
Member since 2004 • 52566 Posts

Always give way to the car from the right.

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Tighaman

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#5 Tighaman
Member since 2006 • 1038 Posts

@evildead6789: thanks fam

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tormentos

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#6 tormentos
Member since 2003 • 33798 Posts

@Tighaman said:

If the bw of the ps4 is theorically 176gb for 8gb of ram we gonna say real world 170gb so we wont have any jimmies rustled but the game only uses 4.5 gb of ram so how much bw does a game really have when 20 gb of that bw automatically goes to the cpu?

WTF..... lol

Oh brother... No really what the hell did you just say and why are you mixing bandwidth with ram quantity.?

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Opus_Rea-333

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#8  Edited By Opus_Rea-333
Member since 2013 • 1238 Posts

@tormentos said:

@Tighaman said:

If the bw of the ps4 is theorically 176gb for 8gb of ram we gonna say real world 170gb so we wont have any jimmies rustled but the game only uses 4.5 gb of ram so how much bw does a game really have when 20 gb of that bw automatically goes to the cpu?

WTF..... lol

Oh brother... No really what the hell did you just say and why are you mixing bandwidth with ram quantity.?

It was a very good question from a person that doesnt know shit about tech

Tighaman you now know bro !! dont even listen to this PS4 sucka El Tormo, hes clueless about tech <--- well not really but almost.

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jake44

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#9 jake44
Member since 2003 • 2085 Posts

Interesting question...

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poomonger613

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#10  Edited By poomonger613
Member since 2006 • 1331 Posts

well first you figure a balanced equation for the chemical reaction, then figure out the molar concentration of the reactant and use stoichiometry to find the mass of the product after the reaction has taken place