what role does Processor (Ghz or Mhz) play in graphics card?

Question

I have seen many graphics card having 1Ghz, 1.5Ghz or even 700Mhz,etc. I know that more Ghz/Mhz is good for gaming, but i dont know what Good does it do!!
I also want to know what does RAM in graphics card (like 1GB graphics card, 2GB graphics card,etc.) do in gaming??

So in Short, what does more Ghz do good for gaming? Also the graphics card RAM.

Answer 1

What you're seeing is core speed ,shader speed, and memory speed. The core speed is the frequency that the GPU core operates at, the shader speed is how fast the programmable shader proccesors (there will be hundreds or thousands of these in a modern card) operate at and the memory speed is self explanitory. The amount of VRAM a card has determines the amount of data that can be stored locally on the card, more is generally better, but there is a point of diminshing returns. Many low end cards ship with more VRAM then they can effectively use, this is done for marketing purposes mainly, and to impress uniformed folks who think they are getting a great video card for alot of money, Don't fall for this. Examples of this include 1 or 2 GB versions of the the low end Radeons (54xx/64xx) or low end Nvidia cards (GT 220/430/520/610), These cards would perform the same with 512 MB of VRAM or 2GB of VRAM.





Also the the first peson who answered is getting poor peformance because his/her video card is actually below the peformance level of the minimum spec card for BF3. Just because a card is newer or has higher number desgination, it doesn't mean that's faster than an older card. For example The Radeon 5850 is about as fast as the Radeon 6870 and also much faster than the Radeon 7770.

Answer 2

properly centrino's are clocked somewhat in any different case i think of, their figures arent as intense as you assume. in spite of the shown fact that i think of P8400 could be extra suited for gaming because it has the better clock velocity. relies upon on cost additionally.

Answer 3

Graphic cards are the internal devices that render(or draw) the images on the screen. now if your asking what images, then your definitely need to research more. Games work by outputting frames(images) per second just like a video player plays a video. the major difference here is that the video player has the data ready and know what the next frame is, whereas the game has some idea about the next frame, but doesnt know it before the player does something to tell the computer what to show him. game needs to draw the frame individually. these things require very complex calculations all done by the processor or CPU of the computer majorly. some minor calculations and graphic based calculations are done by the GPU. GPu is the graphic processing unit. it is the main thing required for smoother video playback and ultimate close to reality gaming. the latest GPUs come with complex specifications and it may be hard to know what the real performance of the card is.

your question about 1GB 2 GB is related to Graphic card storage. 1 gb means 1 billion memory locations to store 8 bits of data, maybe one character(a,b,c,d....etc). now when the game or video needs frames, it may guess what the next frame is or may know what the next frame is. at this time it need to store this frame. these frames are typically of large size owing to the latest half HD (720P) and Full HD(1080p) resolution and pixel concentration. these frames are stored on the graphic card for easier and faster access.

also you must know that typical videos have 30-60FramePerSec and games of low quality have 100 fps and higher end games may have 30-60. game frames depends greatly on the GHz and Video memory(1gb 2gb etc). also the Resolution affects this. CPU speed also grealty affects this.

if i need to say in simple terms, 1 ghz is 1giga calculations per second.

obviously 1GHZ is faster than 700MHz, but sometimes this may not be true.

but there seems to be a good deference between the manufacturers of the Laptop systems. Sony undervolts the cards, passing lesser voltage to the card thus reducing performance, I am living with it now. Dell on the other hand performs very well.

the easiest method to choose the right card for you is to check out what games you will play and check out the benchmarks of that card for your system. and read reviews about them.

(i did not know about Battlefield 3 and now im suffering with 12-23FPS with a great system, only coz i chose Sony.)

in the end performance also depends on the game itself. some games are Extensively CPU intensive, and some GPU intensive and some both.

to know more about benchmarks, go to notebookcheck.com.

in short, to have a great gaming experience, you need to have minimum 30 FPS, and recommended 60-70 if its a First person shooter. for this to happen, you'll need atleast 1-2 GB graphic ram of the latter releases(GPUs), for the now famous games. for the future i would recommend buying some 2-3 gb GPU but also faster one. how to check the speed is to read many many reviews and look for benchmarks. if the latest and i mean THE latest games are running at good frames, then you'll be solid for another 2-3 years . Maximum

my system:

CPU

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Intel i5 Sandy bridge at 2.40 Ghz maximum 3Ghz

System

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Manufacturer Sony Corporation

Model VPCCB35FN

Total amount of system memory 8.00 GB RAM

System type 64-bit operating system

Number of processor cores 2



Storage

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Total size of hard disk(s) 466 GB

Disk partition (C:) 36 GB Free (156 GB Total)

Disk partition (D:) 6 GB Free (12 GB Total)

Disk partition (E:) 45 GB Free (297 GB Total)

Media drive (F:) CD/DVD



Graphics

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Display adapter type AMD Radeon HD 6630M

Total available graphics memory 4819 MB

Dedicated graphics memory 1024 MB

Dedicated system memory 0 MB

Shared system memory 3795 MB

Display adapter driver version 8.850.5.3000

Primary monitor resolution 1920x1080

DirectX version DirectX 10



Network

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Network Adapter Bluetooth Device (Personal Area Network)

Network Adapter Atheros AR9485WB-EG Wireless Network Adapter