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Radeon vs FireGL vs Quadro vs GeForce

L

lambchops511

Senior member
Right now I am writing a custom application (utilizng OpenGL 2.0)

Specifically I am only using PBO and Textures .

There won't be any complex calculations

The app is basically: Move data from ram to PBO to texture to frame buffer

However, the texture and pbo sizes are quite large (1920x1080) and i need to produce extremely high rates ( 120...later on 240 )


which type of video card do u recommend?

I am noticing quite a performance (~2x) difference between Quadro FX 1500 PCIE and ATI Radeo 1650XT AGP . Could this be because of the bus? or the card?
 
The bus will limit your performance if you're transfering large amounts of data from system ram to the video card.
 
AGP 4x and up would allow that. Note, however, that the performance also depends on how you code and how well the driver is optimized for cpu->gpu transfer.
 
my code bypasses the CPU

its DMAed directly from memory to vram (thats why i said i was using PBO)

so u think the performance difference is the card? or the bus?
 
A little of both IMO.

Given the sustained bandwidth you're requesting, PCIe should give a bit more overhead.

Also, I'm probably going to get flamed for this, but nVidia's OpenGL implementation always seemed to have been a little more on the ball than ATI's. That's just my personal experience.

- M4H
 
Originally posted by: MercenaryForHire
A little of both IMO.

Given the sustained bandwidth you're requesting, PCIe should give a bit more overhead.

Also, I'm probably going to get flamed for this, but nVidia's OpenGL implementation always seemed to have been a little more on the ball than ATI's. That's just my personal experience.

- M4H
Click to expand...

No, you're not in the wrong there, nVidia consistently outperforms ATi in OpenGL applications.
 
As for which card....any of them will be fine. The Quadro's and FireGL's really big main difference (outside of various optimizations) is line-anti-aliasing. Therefore any of them will be fine.

-Kevin
 
I would think that the gamer cards will be faster here if they're all on PCIE. Most of them have less but faster memory than the equivalent professional ones.
 
Well, the FX1500 is also a simply a beefier card than the ATI one, hands down.

Probably on the order of twice as fast.

Nat
 
hmmmmm

do u think the professional cards will be better?

i dont have any antialiasing going on . however, (believe it or not) the NVIDIA OpenGL 2.0 implementation of PBOs are bugged . after a certain size with rgb textures it crashes . ati works fine

i am leaning towards a FireGL card . do u think it'll be better than the Radeon card?

memory bandwidth means nothing to me . since almost no data is stored on the vram . it is almost direct dma from ram to framebuffer
 
i just ran my test on a x1950xtx

it produced the exact same rates as the x1650pro

the quadro card is MUCH faster

do professional cards make that much of a difference?
 
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