ATi Cards Avaldable for Preordering...

n00bs

Right Ian.

A grapics pipeline is something that things like pixel fill data passes through (basically the stuff needed for the picture you see on your screen)

If a card has one pipeline then say you have 24 parts of pixels waiting to be send to the card. Each bit of data needs to get in the queue.

Now x1800 has 16 pipelines so with your 24 bits of data, 16can go at once and the other 8 have to wait to go at the second run.

With the GTX all 24bits of pixel data can go at the same time: no queueing.

The x1800's core is faster so can pump out more chunks of data queue than the GTX, but the GTX catches up when it comes to the data not queueing for so long. This means thatwhile the x1800 is a faster clocked core: the GTX is more efficient at processing the data :)

OK? I hope thats a nice simple and understandable explanation for you :)
 
thanks! it makes perfect sense now.....kinda...the x1800 runs faster, but dont have asmany pipelines to shove data through, while the 7800GTx runs slower, but has more pipelines so theres no queing, and so data can get through in higher quantities making up for the speed difference....right?
 
name='ionicle' said:
thanks! it makes perfect sense now.....kinda...the x1800 runs faster, but dont have asmany pipelines to shove data through, while the 7800GTx runs slower, but has more pipelines so theres no queing, and so data can get through in higher quantities making up for the speed difference....right?

Yes indeed. Nice one :)
 
cant wait to see an x1800xt and 7800gtx oced go head to head. My money is on the 7800gtx. ATI had to raise the core clocks to battle the less pixel pipeline disadvantage. Which tells me that there wont be much headroom to oc on that card. Right now the 78xx series are still looking like the best choice to me . Especially with Q4 and F.e.a.r. around the corner which will inherently do good on the nvidia drivers even though on pre-release benchies ATI raped in F.e.a.r. but fear programmers are optimising the game for the nvidia cards as we speak. So the retail version shuold be the correct benchmark and not the preview version.
 
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