What's the Difference between a low & high end card???

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I

Indian King

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Mar 15, 2014
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Just can someone tell me what's the
Difference between a GTX 630 & a
GTX 680????
Doesn't they have the same memory and some other small properties??

What's the main part of a graphic card that gives framerates to the games??
(Just don't tell the difference is money, I know that.)
 
Solution
smorizio
there two parts of a video card the memory and the gpu chip. the memory of the card does two thing. one you have to have the memory to display the resultion of the screen. older screens used to be 640 by 480 or 1080 by 760. at most a good 256k or 512 was only needed to display that output. with higher end screen more video ram is needed for the output.
also when you look at two cards ones with 2 gigs of ram and one with 4g of ram the card with the larger ram can hold more video frame data. in some of the newer high end games with large cut scenes the gpu with the larger memory can handle the cut scenes without dropping frame rates. nvidia cards gpu use cuda cores. amd is called Stream Processors
you cant says one nvidia cuda is equal...
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k1114

k1114

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May 2, 2010
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CUDA Cores
Graphics Clock (MHz)
Processor Clock (MHz)
Memory Speed
Memory Amount
Memory Interface Width
Etc.

Pretty much every single spec you see on the spec sheet will differ. But when comparing cards, you don't look at the spec sheet because you can't directly compare different architectures, even the same generations will differ. Just like with a 630 (fermi and kepler versions) vs a 680 which is kepler. You want to look at game benchmarks to know their real world performance.
 
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k1114

k1114

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May 2, 2010
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Vram holds any data that is being used by the gpu. Just like how ram holds the data for the cpu, the vram holds it for the gpu. Just like ram, there is vram of different speeds.

@terry, I think he can obviously understand a high end card will be better performance. He's asking why.
 
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smorizio

smorizio

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Jan 22, 2010
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there two parts of a video card the memory and the gpu chip. the memory of the card does two thing. one you have to have the memory to display the resultion of the screen. older screens used to be 640 by 480 or 1080 by 760. at most a good 256k or 512 was only needed to display that output. with higher end screen more video ram is needed for the output.
also when you look at two cards ones with 2 gigs of ram and one with 4g of ram the card with the larger ram can hold more video frame data. in some of the newer high end games with large cut scenes the gpu with the larger memory can handle the cut scenes without dropping frame rates. nvidia cards gpu use cuda cores. amd is called Stream Processors
you cant says one nvidia cuda is equal to a amd core they dont line up. what you have to do is look at the say model gpu rev. ie 500 series or 600/700/800 for nvidia. for amd it the 5000/6000/7000/r7/r9.
for nvidia there number is 740/750/760/770/780. as you go higher number card there are more cuda cores. the more cores the more work the card can do for each clock cycle. with nvidia they take there top line gpu chip and disable parts of it to make a cheaper chip.when they disable parts of the chip the card is weaker then the card above it.
less frame rates. with gpu if you look at review guilds you see the avg frame rate in a game for a gpu.
the trick in buying a gpu is to buy one that not $$$$ but gives you playable game. cards like the 630 are made for dell and hp with low wattage power supplys there not made to game. that why for the money the starter cards are the 650ti and 7770/7790/7850. for higher end gamers that why see people by two 770 or 280x cards and crossfire and sli them.
cost less then the top of the line cards and there faster in some games.
 
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