understanding graphics cards

iron man

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:confused: hey guys i'll soon be in the market for a new gpu( upgrading my 9600gt) and i often struggle to understand gpu's. my question is: what are the most important bits to a gpu?

http://www.gpureview.com/show_cards.php?card1=603&card2=605

if you look here you'll see why i get confused. its obvious that a gtx 295 would be better than a gtx 285 but theres many things that the 285 is better at? e.g. 295 core clock = 576mhz 285 core clock = 648mhz. i just would like to know what parts count the most in a gpu.

thanks
 
Bus/Clock/Memory Speed and the amount of shaders it can handle :)

And also remember the nVidia GTX295 is the culmination of 2 x GT200 PCB's. But lately they've put everything onto 1 PCB and quietly slipping it into the market to replace the exisiting GTX295 gfx cards.
 
:confused: hey guys i'll soon be in the market for a new gpu( upgrading my 9600gt) and i often struggle to understand gpu's. my question is: what are the most important bits to a gpu?

http://www.gpureview.com/show_cards.php?card1=603&card2=605

if you look here you'll see why i get confused. its obvious that a gtx 295 would be better than a gtx 285 but theres many things that the 285 is better at? e.g. 295 core clock = 576mhz 285 core clock = 648mhz. i just would like to know what parts count the most in a gpu.

thanks

tip, wait for the new ATI/AMD graphics cards to come out... then wait for the initial pricing to drop. They seem to be real demons :D
 
In two weeks the 5series cards supporting directx 11 will be released.
 
tip, wait for the new ATI/AMD graphics cards to come out... then wait for the initial pricing to drop. They seem to be real demons

thanks but i actually need help understanding these things.

something like the comment gradius gave but i'd appreciate everyones input

also does anyone know how long these newer gpu's are? i think my case might be too short
 
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tip, wait for the new ATI/AMD graphics cards to come out... then wait for the initial pricing to drop. They seem to be real demons

thanks but i actually need help understanding these things.

something like the comment gradius gave but i'd appreciate everyones input

OK, try this on for size.

for AMD cards...
1) What you looking for is the number of shader units. 800 and above = good. below 800 and the performance will be that of your 9600gt or less.

2)Memory. What you want is DDR5 on the 256-bit bus. this means you get a huge amount of mem transfer. the more Bandwidth a graphics card has, the better the performance.

3)Clock speed. this is simple, the higher the clock speed, the better, however, refer to number 1 as well, you want a high clock speed with a massive number of shaders (but usually the more shaders you have, you more performance, so only use shaders when you have to).

4) to get an understanding for the AMD/ATI cards, using the naming scheme, it's really awesome. The first two letters mean diddly squat. The first number you see refers to the series/generation of the card, and the higher the number, the more advanced. So take the AMD HD3870 and HD 4870, then 3870 has a "3", and the 4870 has a "4", thus this means the 4870 is of a more recent generation, thus higher power.
The next letter tells us what type of graphics card in terms of low range (usually a "3" or "5"), mid range (usually a "6" or "7") and high range (usually "8" or "9). so the higher the 2nd number is, the better the assumed performance. The 3rd number tells us where the performance of that graphics card lies within each bracket (low, mid, high range), this is shown by a "3", "5", "7" or "9". What this means is that the "3" will be beaten by the "5" and so on.

eg: 3650<3850<3870<4750<4770<4830<4850<4870<4890 and so on.
or : 4350<4550<4650<4670<4750<4770<4830<4850<4870<4890.
(although the 4770 does beat the 4830)

simple.


Nvidia will be explained by someone else (I'm tired)
 
Having a look at benchmarks always helps. Sometimes the cold hard specs can be difficult to interpret, but real life performance never lies
 
Having a look at benchmarks always helps. Sometimes the cold hard specs can be difficult to interpret, but real life performance never lies

+1. Why bother with all the "cold hard specs" when benchies never lie...? :p
 
Having a look at benchmarks always helps. Sometimes the cold hard specs can be difficult to interpret, but real life performance never lies

I would advise this too.

As for Nvidia...

Nvidia has one of the worlds worst naming schemes ever, or at least they did (Nvidia has made it a habit to basically rename old graphics cards, so be wary).

For Nvidia I'm gonna leave out the 9xxx series out. It's you already have a 9600gt, so mentioning a 9xxx would be useless, and Nvidia has basically restarted the naming scheme (if they continued on and call the graphics cards after the 9xxx series then you would be looking at the 10 xxx series and so on, which would be difficult to say, not as catchy, and well, it would be annoying)

So, to what you want.
1)the shaders, just like AMD/ATI the under of shader processors on these cards has a direct correlation to performance. So the more shaders the graphics card has, the more zoom zoom. HOWEVER, don't go an make the mistake of thinking that AMD shaders=Nvidia shaders, na-ah, these are two different breeds of processors.

To make sense of it all, (if we assume that the AMD and Nvidia cards produce the same performance), think of the AMD as a v12, it has more cylinders, and produces 400kw of power. Mean while the Nvidia is a big V8 that also produces 400kw of power. So you can't compare apples with apples, because you dealing with lemons and oranges.

2)the memory. This is simple, the more bandwidth the card has, the better. However, unlike AMD, Nvidia doesn't use ddr5, they use a much bigger bus lan. The result is the same speed, but just a different way to do it. So what you looking for is a big bus width (I'm not clued up on the Nvidia bus widths, I think it's about 448bit-bus to 512bit-bus, just go for the bigger one). What you really want here is the Higher bandwidth.

3)Clock speeds, this is how many times the processors, well processes. So the higher the core clock speed, the faster the processor, but it's the same as the AMD, the number of shaders takes preference over the clock speed, when you dealing with the same number of shaders, then you can compare the clock speed.

4)Nvidia's new naming scheme is a little easier to follow then their previous one. Basically, you have you series (or generation) number up at front (for eg: the GTX280, the "2" means it's the 2nd generation). So the gt200 series means the second series (you might be wondering where the 1st series was, well, the 8xxx and 9xxx series were the 1st series). Then comes the 2nd number, which means how fast the card will perform, which goes in counting order, so 4 performs worse then 5, and 5 performs worse the 6 and so on (eg: GTX 280, the "8" signifies it's fast).
The 3rd number shows that it's an update, re-designed, re-worked, what ever, it's just a modified version of the "0" version, and they always use the number "5". So this means the GTX285 is faster then the GTX280. that's obvious.
Nvidia seemed to have paid so much attention to deal on the 200 series, that they even made a nice little addition to help you decide whats faster. Basically, when you see "GTS", it means slower then all other "GTX" 's. So a GTS250 WILL be slower then a GTX260, I kinda think it's useless, but go Nvidia.


What you really want is to start Graphics card reading. Just read reviews on cards, and you'll learn more. I could spend 6 pages explaining how the AMD graphics cards work, what makes them tick, how they process, what makes certain ones good etc, and the same for Nvidia, but alas, I'm not so diligent. And I'm not really inclined to spend 2 hours typing. So just use the internet and learn. read reviews. Hell I'm gonna be so kind as to push you into http://www.tomshardware.com .

Cheerio.
 
tip, wait for the new ATI/AMD graphics cards to come out... then wait for the initial pricing to drop. They seem to be real demons :D

And once that happens what's the next advice? Wait for the new generation cards to come ouy and for the price to drop on them as well resulting in never buying a card;)
 
All you need to understand about graphics cards: More money = more power. Nvidia is more expensive than ATI for the power. Don't get your head too wrapped around cores and mem and shaders and all the rest of it. Read the benchmarks and compare the prices.
 
And once that happens what's the next advice? Wait for the new generation cards to come ouy and for the price to drop on them as well resulting in never buying a card;)

no you idiot, the new ATI/AMD graphics cards are due to be release TOMORROW, so he need not wait ages to upgrade, and in a months time the 5770/5750 will be released. Only a fool wouldn't wait a month or two.
So by waiting for the next generation (which are due for NOW and A MONTHS TIME) you get your best bang for the buck.

I'm just not going to help you folks anymore, screw this noise.
 
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no you idoit, the new ATI/AMD graphics cards are due to be release TOMORROW, so he need not wait ages to upgrade, and in a months time the 5770/5750 will be released. Only a fool wouldn't wait a month or two.
So by waiting for the next generation (which are due for NOW and A MONTHS TIME) you get your best bang for the buck.

I'm just not going to help you folks anymore, screw this noise.

lol, quite ironic
 
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no you idiot, the new ATI/AMD graphics cards are due to be release TOMORROW, so he need not wait ages to upgrade, and in a months time the 5770/5750 will be released. Only a fool wouldn't wait a month or two.
So by waiting for the next generation (which are due for NOW and A MONTHS TIME) you get your best bang for the buck.

I'm just not going to help you folks anymore, screw this noise.

Someone took out their tampon early i reckon :D
 
wow scotty thanks so much for the advice and i appreciate everyones input. its still a bit fuzzy though but im grasping it slowly. hehe yeah sometimes i wonder why i dont just save up and wait for then next generation then when that one comes out i wait for the next and never get a gpu but that defeats the purpose. and im only planning to buy after christmas and before i go off to univarsity.

question: between an 8800gt and a 9600gt which would be stronger? i heard that even though 8800 is a generation behind its got 200 more then the 600(the 2nd digit i mean) so that would mean its faster. true or false?

and thanks again everyone
 
8800GT will be faster than a 9600gt. 8800gts 320 will be slightly weaker. So it sits somewhere between the two.
 
no you idiot, the new ATI/AMD graphics cards are due to be release TOMORROW, so he need not wait ages to upgrade, and in a months time the 5770/5750 will be released. Only a fool wouldn't wait a month or two.
So by waiting for the next generation (which are due for NOW and A MONTHS TIME) you get your best bang for the buck.

I'm just not going to help you folks anymore, screw this noise.

2 words... anger management!
 
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