Hello everyone!

To bring some light into the jungle of chip code names, computing capabilities and shaders I created the following overview.

Cards that are red will not run the new applications that are compiled using the Cuda 2.0 SDK.
Cards in grey are able to run these applications, but are simply to slow and hence not recommended by the project. (main page says 50, somewhere it was stated that cards with 96 stream processors are recommended)
Green cards will run the current applications without problems, if there is any it should be a software bug...

Computing capability 1.0

G80:

• Geforce 8800 GTS - 320/640M - 96 shader units
  
• GeForce 8800 GTX - 768M - 128 shader units
  
• GeForce 8800 Ultra - 768M - 128 shader units
  

Computing capability 1.1

G84

• GeForce 8600 GT - 256/512M - 32 shader units
  
• GeForce 8600 GTS - 256/512M - 32 shader units
  

G86

• GeForce 8400 GS - 128/256M - 16 shader units
  
• GeForce 8500 GT - 256/512M - 16 shader units
  

G92

• GeForce 8800 GS - 384M - 96 shader units
  
• GeForce 8800 GT - 256/512/1024M - 112 shader units
  
• GeForce 8800 GTS - 512/1024M - 128 shader units
  
• GeForce 9600 GSO - 384/768M - 96 shader units
  
• GeForce 9800 GT - 512M - 112 shader units
  
• GeForce 9800 GTX - 512M - 128 shader units
  
• GeForce 9800 GTX+ - 512M - 128 shader units
  
• GeForce 9800 GX2 - 2x512M - 128 shader units
  

G94

• Geforce 9600 GT - 512/1024M - 64 shader units
  

G96

• Geforce 9500 GT - 256M - 32 shader units
  

Computing capability 2.0

D10U-20

• GeForce GTX 260 - 896M - 192 shader units
  

D10U-30

• GeForce GTX 280 - 1024M - 240 shader units
  

All information is based on this wikipedia article.

Thanks for you work koschi!
Made this thread a sticky, so people who are not sure if their card can contribute will hopefully read this before they ask... ;)
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pixelicious.at - my little photoblog

Thanks for you work koschi!
Made this thread a sticky, so people who are not sure if their card can contribute will hopefully read this before they ask... ;)

Hi Koshi,
great job!
Please repost this message on the FAQ forum, highlighting that 1.0 will not work and add a disclaimer to the best of your knowledge. I will link it from the home page instead of the current link to Nvidia.

many thanks, very useful.

gdf

To bring some light into the jungle of chip code names, computing capabilities and shaders I created the following overview.

You are right, the GT200 Series has computing capability 1.3

http://developer.download.nvidia.com/compute/cuda/2.0-Beta2/docs/Programming_Guide_2.0beta2.pdf

I was assuming that Cuda version = computing capability level, which is wrong.

Will take that into account for the FAQ. But still I can't edit the post, was that limited in time?

Good idea!

I think you can put the 9600GT on the green list as well. It's got its shaders clocked fairly high and should be able to finish a WU within 24h with the current client.

MrS

Not bad, I also need 16 hours with my 9800GT, but under Linux... :-/
I'm going to post the FAQ entry soon.

Edit:

Done, hopefully I didn't mess up the second part, otherwise please correct me.

OK - as a newbie - and I'm sure this is probably explained elsewhere, but why won't my 8800GTX run the application?

Apologies if you're having to cut and paste a response!!.....

P.

If I understood it right it is because your card only has computing capability 1 which does not support CUDA 2.0 (or CUDA 2.0 does not support cards with computing capability 1).
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pixelicious.at - my little photoblog

Oh well....... thanks.

Would anyone like to suggest a good card for this application as I have to acquire one new graphics card and may as well shuffle my existings ones around my PCs....

P.

If I understood it right it is because your card only has computing capability 1 which does not support CUDA 2.0 (or CUDA 2.0 does not support cards with computing capability 1).

Choose one of the greenly marked from the opening posts that is sold for the money you are willing to spend.

8800GT/9800GT should give you the best credit/$ or € proportion I guess.

As always, this post is without any guarantee ;-)

............ Thanks Koschi!

Choose one of the greenly marked from the opening posts that is sold for the money you are willing to spend.

8800GT/9800GT should give you the best credit/$ or € proportion I guess.

As always, this post is without any guarantee ;-)

Why is it that the 8800GTX isn't supported but other 8800 series cards are?

Why is it that the 8800GTX isn't supported but other 8800 series cards are?

would be nice if this thread was as sticky...

Ever had a look into the FAQ forum? ;)
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pixelicious.at - my little photoblog

considering I only look on this thread, no. Why would I look elsewhere when its right here?

"Cards that offer only compute capabilities at 1.0 level are lacking a hardware features (support for Atomic functions) that Cuda 2.0 relies on, hence Cuda 2.0 compiled apps won't run."

Cuda 2.0 compiled apps will run on cards with compute capabilities at 1.0 level as long as you don't use asynchronous memory copies and atomic global operations.

The FAQ would be right and concise if it said: "Cards that offer only compute capabilities at 1.0 level are lacking a hardware features (support for Atomic functions) that THIS PROJECT relies on".


Atomic functions are used on this project?
If not, the G80 cards are able to run it.
Otherwise, make it clear that this app, instead of any Cuda 2.0 compiled apps won't run.

Good to know, thanks for the information :)
Honestly, I have no clue about Cuda, just collected the cards that would run the app and tried to explain the problem of the G80 without actually knowing for sure.
Unfortunatelly, I can't change my post anymore...


Btw, meanwhile there is also a GTX 260 with 216 Shader units...

I am wondering if refining the list further is possible given that results with 32 shader cards appear to be meeting the 4-day deadline with some room to spare (9500GT and 8600GT cards can be seen in user results with 2-3 day returns...I would assume that the 8600GTS would have similar times). Maybe with a note that these cards can work, but require a 24/7 computation. And clearly given these results, the 16 shader cards would never be able to meet the 4-day deadline.