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Author Topic: GTX 580 versus GTX 285  (Read 2166 times)

Holger Neuhauser

    Reputation: 6
GTX 580 versus GTX 285
« on: December 05, 2010, 10:28:38 pm »
December 05, 2010, 10:28:38 pm
Hi,

I have a GTX 285 running in my system,

would it make a huge difference in terms of better performance to use a GTX 580?

 

Thanks

Holger

Ferry

    Reputation: 0
GTX 580 versus GTX 285
« Reply #1 on: December 05, 2010, 10:44:37 pm »
December 05, 2010, 10:44:37 pm
We are fixing an issue with bloom in the next update. This issue works on texture fillrate. 

 

285 gtx texture fillrate : 51.8

 

580 gtx texture fillrate : 49.4

 

So that would actually be worse. However memory bandwidth and vertex processing is much faster.

 

285 gtx memory bandwidth : 159.0

580 gtx memory bandwidth : 192.4

 

Cude cores:

 

285 gtx  : 240

580 gtx  : 512

 

This means bigger textures are less of a problem and that really large polygon models should be better.

 

If we fix the bloom issue that hogs texture fillrate a 580 gtx is probably not a bad choice. However a fast cpu lets you run models with more materials.

 

So it is hard to say if the upgrade is huge enough.

 

For someone without a card like 285 gtx the 580 gtx is a clear winner. If you do have one you should probably first test your scene on a 580 before buying to see if it gives the speed where you need it.

GTX 580 versus GTX 285
« Reply #2 on: December 05, 2010, 11:52:02 pm »
December 05, 2010, 11:52:02 pm
I would definitely wait for the next update of Lumion to do some tests because performance will improve a lot. On my GPU I had a 60% performance increase. Going from 100fps to 160fps!!!