crossfire compatibility on directx10

[jordibax]

Ati and its damn tiquet service support doesn´t answer this: directx9 cards will work slowlier in directx10 `couse they`ll need emulation to suport the new directx. What will happen when in a year from now, we connect in crossfire mode a new directx10 card with a nowadays high-end directx9 card like x1950?will it work?will directx 9 card run in an emulation mode at the same time that the directx10 card runs normally?this is important because there is not a real chance to take advantage of a crossfire card when in a year directx10 is completely implanted. We will have a directx10 card that has a directx9 card attached in an emulation mode slowing down all the system. if that is true, and we don`t want to wait until directx10-vista and all the new generation card are completely well-working (at least a year), the fastest card option is nvidia dual gpu cards. Maybe this is the reason why they are not explaining nothig about this and they are doing nothing but talk about ddr4 wondering performance...What do you think about this compatibility between directx10 and directx9 cards in cross-fire mode?would you wait until all directx10 cards are on the market completely tested in gaming?

[Crash]

ur post is wrong in everyway

do research lol

[jordibax]

I did researched . directx10 will require new gpu compatible cards to take full advantage. Directx9 compatible cards will run directx10 games in a emulation mode. My question is easy. If I buy a todays card, when i upgrade to directx10 card and I run them both in crossfire mode, what performance is expected?will it be even possible to run them in crossfire using directx10?Maybe wasting money in a future useless crossfire card makes u lol, but not to me and people that helps in forums to newbies instead of so much laughing

[Mike]

I would not expect that next generation cards and current generation cards will be able to run crossfire together.

[jordibax]

I would not expect that next generation cards and current generation cards will be able to run crossfire together.

I agree you Mike, and sucks that ati is still bringing up $$$high end cards with no real chance to get crossfire benefits in a so short period of time. No one is going to buy a directx9 card in a year time, just to take the advantage of their old card using crossfire mode. So now, those who buy a $$$crossfire edition card, will be f... off when in a few months directx10 and new cards appear.I´ll wait for directx10 launching to update my card.

[jordibax]

I agree you Mike, and sucks that ati is still bringing up $$$high end cards with no real chance to get crossfire benefits in a so short period of time. No one is going to buy a directx9 card in a year time, just to take the advantage of their old card using crossfire mode. So now, those who buy a $$$crossfire edition card, will be f... off when in a few months directx10 and new cards appear.I´ll wait for directx10 launching to update my card.

[bLaK]

"So now, those who buy a $$$crossfire edition card, will be f... off when in a few months directx10 and new cards appear."

I tried to explain to my friend but he didnt believe me..SIGH** i thought indians were smart when it came to technology.

[Track]

Are u asking if an X1950 Crossfire Master card will work with an X2800XT?

Obviously u cannot run 2 cards wich are not alike together, so the question of what DirectX interface they will each be using is pathetic. Not only can u not run 2 cards wich are not alike, but these cards are not even in the same series.. or to top it off, dont use the same DirectX!


On the other hand if u want to run an X1950XT with an X1950 CrossFire Master card in Vista u can. ATI isn't trying to screw anyone, and wether u use DX9.0L or DX10, it will run the same as on a DX10 card. I dont know abt this "emulation" thing, as thats what was thought to be in XP (has DX9.0L been scheduled to be released on it), not in Vista.


All in all, buying a CrossFire setup right now may not be the smartest idea with new boards coming in early 2007 and it would be hard to sell 2 cards when R600 comes out, not to mention one..

[jordibax]

Oh,sorry for my ignorance track, but most of the mortals didn´t know that crossfire compatibility is restricted to the same series card, actually i´m not sure about this that you say. I even don´t know how much alike you mean that 2 cards in crossfire must be. Ati maybe is not trying to screw anyone, but when they talk about crossfire advantages they hurry up telling us that cards must not be exactly the same (not like nvidia so limited dual gpu mode), and they don´t tell nothing about series restrictions compatibility. Anyway, if you think that ignorance is pathethic, thank you very much for helping us whith your great knowledge .
If any one can supply anything about this crossfire series limitations, i´m sure that more people than me will thank anny comment

[Track]

Please, i only try to help. I was just stating that "2 cards wich are not alike can run in Crossfire" is a wrong statement, not that u were wrong by saying it if u did not know any better.
Again, i dont understand exactly what u mean "Crossfire series limitation". Are u talking abt DirectX?

[Mike]

Oh,sorry for my ignorance track, but most of the mortals didn´t know that crossfire compatibility is restricted to the same series card, actually i´m not sure about this that you say. I even don´t know how much alike you mean that 2 cards in crossfire must be. Ati maybe is not trying to screw anyone, but when they talk about crossfire advantages they hurry up telling us that cards must not be exactly the same (not like nvidia so limited dual gpu mode), and they don´t tell nothing about series restrictions compatibility. Anyway, if you think that ignorance is pathethic, thank you very much for helping us whith your great knowledge .
If any one can supply anything about this crossfire series limitations, i´m sure that more people than me will thank anny comment

Current gen CrossFire requires a separate "CrossFire Edition Master Card" for CrossFire to work. CrossFire cards usually work with cards in the same series. Like there is an X1950 CrossFire card that will work with and X1950 XTX or X1950 XT. And there was an X1900 CrossFire that worked with the X1900 XT, XTX and GT.

Next generation however, there will no longer be separate CrossFire cards, you can just grab two like cards and plug them in. Since next gen will be so different, there's almost no way in hell they're going to work with current gen cards. And even if they did, you probably would get worse performance.

So yeah, ATi is quick to state that they can use CrossFire with any two cards and that is a "feature", but in the end it's just a confusing mess which usually involves dumbing down one of the cards to equal whichever card is slower.

Just stick with 2 identical cards, that's the only way that makes any sense.

[jordibax]

Please, i only try to help. I was just stating that "2 cards wich are not alike can run in Crossfire" is a wrong statement, not that u were wrong by saying it if u did not know any better.
Again, i dont understand exactly what u mean "Crossfire series limitation". Are u talking abt DirectX?
doesn´t matter track.Maybe i post confusing. I´ll explain in a example: ati says "buy crossfire. You will take advantage of your old car when you have to update". then I buy a crossfire card directx9 card like 1950xt. In 9-10 months it happens that I want to update my card again, when directx10 and new directx10 native support gpus are on the market, i I decide to buy the x2300 crossfire edition card (just imagine). My question is : it is going to work? , is it going to be a slow setup because x1950 is not a native directx10 card?or is it going to run perfectly because the new x2300 directx10 full compatible card will control everything? As I understand by your mail, you say that is just not possible because we are going to deal with 2 different series cards. If this is true I just say that ati doesn´t warn about this in most of their advertisements. thanks for replying

[jordibax]

Current gen CrossFire requires a separate "CrossFire Edition Master Card" for CrossFire to work. CrossFire cards usually work with cards in the same series. Like there is an X1950 CrossFire card that will work with and X1950 XTX or X1950 XT. And there was an X1900 CrossFire that worked with the X1900 XT, XTX and GT.

Next generation however, there will no longer be separate CrossFire cards, you can just grab two like cards and plug them in. Since next gen will be so different, there's almost no way in hell they're going to work with current gen cards. And even if they did, you probably would get worse performance.

So yeah, ATi is quick to state that they can use CrossFire with any two cards and that is a "feature", but in the end it's just a confusing mess which usually involves dumbing down one of the cards to equal whichever card is slower.

Just stick with 2 identical cards, that's the only way that makes any sense.
Thanks mike. Much more clear now