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View Full Version : Is the 200 series a whole new architecture?


malachi1313
07-17-08, 07:19 PM
Or is it just more of what the G92 had?? Reason I ask is because it's amazing how games play..no glitches or bugs, kinda unusual for a new card if ya ask me.

MowTin
07-17-08, 08:52 PM
Can you run the froggy demo on these cards or is it g80 only? Is there some dx10 demo you can run?

Medion
07-17-08, 08:54 PM
Can you run the froggy demo on these cards or is it g80 only? Is there some dx10 demo you can run?

There was the medusa demo released for it. It will run on older NV hardware, just not nearly as well.

nekrosoft13
07-17-08, 10:08 PM
you can run all old demos as well

malachi1313
07-19-08, 10:53 AM
well anyone?

Xion X2
07-19-08, 11:09 AM
It's not a "whole" new architecture. There were some changes made like adding more shaders, texture units and transistors, but the AA implementation remains pretty much the same as G80/G92.

Both GT200 and R770/700 are based largely on prior gen architecture.

ChrisRay
07-19-08, 08:31 PM
The main changes to the GT200 and G92/G80 include

1) Better texture sampling efficiency
2) More cache for improved geometry shading., This area is huge. The increase to GS performance is staggering
3) Fully exposed MaDD + Mul operation per shader. The G92 can do it under certain limited circumstances. And the G80 is even more limited. The Gt200 turns it on for everything. Other hardware has to be specifically tuned.
3) Increased shader registry space.

If you look at the medusa demo. It uses significant amounts of geometry shading. And the results show when comparing the G92 to G200. The G200 is to the G92/G80 what the G7x was too the NV40.

Chris

walterman
07-19-08, 08:40 PM
3) Fully exposed MaDD + Mul operation per shader. The G92 can do it under certain limited circumstances. And the G80 is even more limited. The Gt200 turns it on for everything. Other hardware has to be specifically tuned.
Yeah, finally, dual issue :)
If you look at the medusa demo. It uses significant amounts of geometry shading. And the results show when comparing the G92 to G200. The G200 is to the G92/G80 what the G7x was too the NV40.
Unluckily, the bandwidth did not grow as expected (google amdahl's law) :(

fivefeet8
07-20-08, 01:19 AM
The main changes to the GT200 and G92/G80 include

1) Better texture sampling efficiency
2) More cache for improved geometry shading., This area is huge. The increase to GS performance is staggering
3) Fully exposed MaDD + Mul operation per shader. The G92 can do it under certain limited circumstances. And the G80 is even more limited. The Gt200 turns it on for everything. Other hardware has to be specifically tuned.
3) Increased shader registry space.

If you look at the medusa demo. It uses significant amounts of geometry shading. And the results show when comparing the G92 to G200. The G200 is to the G92/G80 what the G7x was too the NV40.

Chris

I wonder Chris, will Nvidia use their DevRel to push for more games to use GS now that the GTX2xx cards are much better at it? How much of an improvement in GS performance are we talking about and is there a 3d test that we can use to measure as such?