Which is more powerful 5770 or 4890

[MeddlE]

Tesselation, Compute Shader 5 and more would be lost. That is the meat of DX11, so no DX10 cards won't run DX11, not even in "compatibility" mode.

Unfortunately you are wrong and toaster is right, look it up. The 4890 does run DX11 but loses some of the features. It's also faster than the 5770 whether you oc or not as both are clockable.

 

[tommythetim]

i build and sell computers through ebay. so i dont think people care about dx 10 and dx 11

If I was buying a new PC and had the choice of DX 10 or DX 11 hardware of similar performance/price, I would be going for the newest hardware.

How can you even compare?

Besides dx11 features like tessellation give a performance hit. Check the tesselation demo going round.

So HD 4890 in dx10 is likely to be a lot faster than HD 5770 in dx11.

You should read this article. http://www.driverheaven.net/articles.php?articleid=140&pageid=4
If this article is anything to go by, then frame rates will probably be about the same or very close.

 

[gareth170]

basicly if u run a dx11 app/game on a dx10/dx10.1 cards it'll just use the dx10.1 features, so basicly it's just running in dx10.1

 

[Toastor]

Tesselation, Compute Shader 5 and more would be lost. That is the meat of DX11, so no DX10 cards won't run DX11, not even in "compatibility" mode.

What I am saying is that if a game is written with only a DX11 codepath, it will still be able to run on DX10.1 hardware. Sure it won't be the full DX11 experience and I agree that it would be no better than running it in DX10.1. The point here is that devs can now move forward and focus on supporting DX11 knowing that it is backwards compatible with previous generation cards without having to write both a DX10 & DX11 version of their renderer.

 

[gareth170]

also another thing. u can't compare a 4890 with a 5770 running an dx11 game. because the 5770 would be using more features where the 4890 would be using dx10.1 feature.

 

[straxusii]

What I am saying is that if a game is written with only a DX11 codepath

This will never happen until we are on DX13 at least, whilst DX11 is the latest DX no game will ever be written such that it cant run on dx10 or dx9 hardware, it would be commercial suicide.

 

[vapor matt]

2 X asus top 4890's in crossfire is what i run, no issue's and i can game flat out everything on full. yes no full DX11 support but by the time there are enough DX11 games the next gen Ati or Nvidia cards will be out and the current cards at over the top prices will fall through the floor.

the 4890's at the moment are a bargin new and 2nd hand. and for MW2 which isnt DX11 I cant fault the speed of the cards. if you want the latest tech then go for the inflated new gen cards, but you will be waiting some time before you will be able to use all the new DX11 features unless you like looking at demo's or the odd 1 or 2 games which implement DX11 at the moment. dirt 2 is not my kinda game personaly.

as always there is demand which inflates prices, but again the features the new cards offer will feature in games next year somtime which to me seems kinda pointless as new gen cards will no dout get improvments with time and the current next gen will be a lot cheaper.

I would look at the games you play, look at any future release's which include DX11 which you might play, then make your choice. the 4890 is the faster card, pick up another 2nd hand later, crossfire and you have a very good setup for gameing.

just my own opinion, as like most i have always moved to next gen, but i wait now and look beyond tomorow.

 

[Toastor]

This will never happen until we are on DX13 at least, whilst DX11 is the latest DX no game will ever be written such that it cant run on dx10 or dx9 hardware, it would be commercial suicide.

Ok, I've just checked my facts to make sure that I wasn't spouting rubbish. DX11 is backwards compatible with both DX9 & DX10. This means that devs can focus on DX11 and know that older hardware will still work (albeit with reduced graphical features).