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Would graphic card's RAM be shared to CPU ?


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#1 cuhkwan

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Posted 16 July 2012 - 06:18 AM

Hi forum,

I have 1G RAM graphic card DDR5. I want to know that if the CPU would take some to its usage or vice vesa.

If so, how can I check how many RAM is shared to the CPU (or vice vesa) ?

Thanks.

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#2 caperjac

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Posted 16 July 2012 - 01:18 PM

i know that some newer CPU come with there own video chip built in ,and all CPU'S ,have L1,L2 ect ect cache ram ,but i don't think that a CPU actually can do anything with your extra video ram ,but i certainly could be wrong

Edited by caperjac, 16 July 2012 - 01:21 PM.

My answers are my opinion only,usually


#3 coxchris

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Posted 16 July 2012 - 03:46 PM

Intel line of i2,i3,i5,i7 has it built-in on to the chip if you have another gpu it will combined both gpus.

AMD APU's has a CPU/GPU ability like Intel built in chips

Laptops and integrated gpus use the system memory as video ram (Integrated video memory)

System Ram interacts with the CPU if you have a integrated GPU the formula for you would be (64-256mb)
System Ram -Shared video ram = Total System Memory
so if you have integrated GPU of 64mb of ram
it would be 4GB-64mb= 3.36GB


What you have is a GPU that has 1GB of video ram on the card so the card doesn't interact with the system ram. The card calculates equations with its own memory before it sends it to the CPU and bypasses the system memory

Edited by coxchris, 16 July 2012 - 03:48 PM.

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#4 cuhkwan

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Posted 16 July 2012 - 07:50 PM

Thanks. You are good at system details.

I also want to know that if I install a newer graphic card driver, would I get a better model configuration ?

(I heard people said that the card is the same, some functions may be just locked somehow. By updating the driver can get a better performance. Is it true ?)

#5 hamluis

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Posted 16 July 2012 - 10:26 PM

<<I have 1G RAM graphic card DDR5. I want to know that if the CPU would take some to its usage or vice vesa.>>

A physical video card has dedicated RAM...that means that it's only used for video purposes and it is part of the structure of the video card. The system uses that RAM only for video/graphics purposes, since the RAM is part of the installed video card/chip...it's not meant for any other purpose than graphics.

Many systems/motherboardx...and now CPUs...come with a graphics function built-in, which has nothing at all to do with the system RAM. These built-in/onboard video functions are not physical cards...they are functions which are just an innate part of the system/motherboard or CPU.

To compound the confusion...some older video cards which had dedicated RAM as part of the card...might also use part of the system RAM for video purposes.

So...the bottom line appears to be...one would have to know the model of the GPU and whether it actually is a physical card...or a sus-system which is an organic part of the CPU or the motherboard.

This is one reason why the specs of a given system are important before deciding to answer some questions about system hardware and what are normally construed as hardware functions.

Louis

Edited by hamluis, 16 July 2012 - 10:32 PM.


#6 coxchris

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Posted 16 July 2012 - 11:36 PM

I also want to know that if I install a newer graphic card driver, would I get a better model configuration ?

(I heard people said that the card is the same, some functions may be just locked somehow. By updating the driver can get a better performance. Is it true ?)

the basic definition of a Driver is a package of code to interact with Windows telling windows what card is, what functions does the card do and so forth. Its like a manual for the computer to understand what component does. A newer driver can sometimes add functions remove functions, fix functions and have better performance.

By updating the driver can get a better performance. Is it true ?)
Yes and no

Before you install a driver you need to read the notes about the driver you have Inside the spoiler box My release notes for my Ge force GTX 550ti. It will let me know what this driver will change in performance. Does it improved it or not. does it modify any function.

Spoiler


By having a dedicated ram video card you are more likely to have performance increases because your video ram on the card not interacting with system memory

I just may have to update my graphics card driver

Edited by coxchris, 17 July 2012 - 12:08 AM.

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