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What are pipelines?

post #1 of 10
Thread Starter 
hi guys,
What are pipelines and if so how do i unlock more?
im useing a geforce 6200
that is the stats from Rivatuner

Thanks alot!
post #2 of 10
The easiest way to think of pipelines is like the lanes of a highway. At a certain point, raising the speed limit (or clock/memory speeds) or the card isn't practical anymore, so you add another lane to the highway (another pipeline) and move double the traffic with the same speed limit.
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post #3 of 10
Nice analogy

Here is a bit more info

Quote:
Important information

Today it’s in my opinion a bit obsolete to talk about “pixel pipelines” when talking about the latest generation of video cards (R5XX and G7X). This is why I have decided to include: pixel shader units, TMUs, ROPs (z compare units are a part of a ROP) and vertex shader units.

”A Pixel shader unit calculates different effects for a displayed pixel to create realistic materials and surfaces. In general one could say that the more pixel shader units exists the better the performance would be. Not all games uses the same amount of shaders, therefore the performance will fluctuate between them”

”The most basic explanation of the fuction of a Texture Mapping Unit (TMU) is that it uses a 2D-image to “clothe” a 3D figure.

”A Render Output Unit or Raster Operations Pipeline (ROP) is one of the final steps in producing the final result. The ROP takes care of the transformation of information stored in the GPUs memory into pixels which are displayed on a monitor. The basic task for a ROP is: AA, blending (just explained) and z-buffer de-/compression.”

”The basic task for a vertex shader unit is to control the behaviour and appearance of the corners to the triangles which 3D-objects are build upon”
Source: http://www.3dmark.com/forum/showthread.php?t=164

Your card therefore has 4 pixel processors (4pp) (also called shaders) and 3 vertex processors (3vp) (also called shaders)
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post #4 of 10
Thread Starter 
yes that was nicely put thank you but can i unlock some more pipelines to my card?
post #5 of 10
Quote:
Originally Posted by RaZzY
yes that was nicely put thank you but can i unlock some more pipelines to my card?
Sorry to say, but if this is your card, there are no pipelines to unlock.

The NV44A cores do not have any unlockable pipelines.
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post #6 of 10
Thread Starter 
yeah thats my card can i do any thing to it apart from overclock (witch i have allready done)
post #7 of 10
Quote:
Originally Posted by RaZzY
yeah thats my card can i do any thing to it apart from overclock (witch i have allready done)
You can use modded drivers to increase the performance of the card further (I reccomend the NGO or Zeropoint, you can get them from www.guru3d.com). But other than drivers and overclocking, that's about it.
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post #8 of 10
Thread Starter 
thanks for your help!
post #9 of 10
Another way to think of pipelines: Toll booths for a bridge. Let's say you have 10 lanes merging into 5 toll booths. You have 10 pipelines but only 5 people (processing units). So, sometimes the number of pipelines does not provide a significant performance boost if your processing units can't process fast enough.

Now, imagine that the tollbooths are intelligent and each tollbooth can reconfigure themselves to handle different types of traffic. One tollbooth only takes cars which need to make change. Another tollbooth can take two or more cars, add them up, and take all the money at once. Yet another tollbooth is free for carpooling. Now you start to see the power of pipelines. It's not just the number it's how the pipelines and process units work together to coordinate operations that appear similar. Pipelines ARE "smart".

So, pipelines, internal bus frequency, internal bus width, interface frequency, interface width (PCIx for example), number of process executers (in this case pixel shaders, 3D vector math, or whatever operation is currently being chewed on...FYI it can take up to 19 passes on a single pixel to prep it for the monitor, amazing orchistration) make up the whole picture.

Was I going off again?
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post #10 of 10
Hey that's a 44A, I beleive some of the A's were unlockable to 6600's, giving you some more pipes. I'm not too familiar with NVidia modded drivers, but there's probably some out that that will softmod it and open those pipes
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