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Settle my research debate.

post #1 of 9
Thread Starter 
Okay, after completely exhausting google, I'm left with TONS of questions..


4xxx vs. 5xxx vs. 6xxx vs. 7xxx: how are some models if previous series cards fastest than the next generation. E.g. the 58705890 seems to out perform a 6870, but not the 6970. How? The 7xxx cards don't seem to do any better than previous generations I'm cross fire..

So I'm about to go nuts with the idea that the 5870 I'm buying is a better card than half the 6xxx cards...
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post #2 of 9
Generally a top tier card of a previous generation will be faster than the lower end cards of the next generation.

A new generation generally brings in new technology like Direct X 11, better tessellation performance and better compute performance, and lower power consumption, etc. Newer generations are essentially more efficient as in they can do more with less.

The short answer is, yes your 5870 will perform better than a 68** card. The only cards in the amd 6k series that will best a 5870 is a 6970 and a 6990. The 5870 and 6950 are very similar with the 6950 having a slight edge, but probably not noticeable outside of benchmarks.

Take a look at this website if you would like the compare various gpu's from different generations.

http://www.anandtech.com/bench/GPU12/372
Edited by icehotshot - 3/6/12 at 5:23pm
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post #3 of 9
Thread Starter 
Rep man!


See, I'm confused still about how a 5870 crushes a 7770. Yet the 7770 has twice the price tag, and would two 5870s I'm crossfire do better than a 7990?

I know this is a very over done thread, but very little ever gets concluded. I would be nice to see an ordered list..

So a 5870 beats 68xx but not 78xx...

4850 doesn't even compare to anything beyond a 56xx...

***..tongue.gif
Edited by Artful Dodger - 3/6/12 at 5:35pm
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post #4 of 9
Quote:
Originally Posted by Artful Dodger View Post

See, I'm confused still about how a 5870 crushes a 7770. Yet the 7770 has twice the price tag..

That is because people or stores want to get rid of it because it is "old" and is not being produced anymore.

To the general consumer, they are going to think a higher number is better and therefore automatically assume that just because something is a 7k series card that it is faster than a 5k series card. It is all about what is going to sell.

Basically there are many people just like you that would question why a 5870 would be faster than a 7770 even though the 7770 is two generations ahead of the 5870. And they will buy the 7770 just because it has a "7" instead of a "5".
Edited by icehotshot - 3/6/12 at 5:35pm
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post #5 of 9
Quote:
Originally Posted by Artful Dodger View Post

I would be nice to see an ordered list..
So a 5870 beats 68xx but not 78xx...
4850 doesn't even compare to anything beyond a 56xx...
***..tongue.gif

Basically you just have to look a benchmarks to see what you are really buying. Going by when the card was released or which series it belongs to only gives you a very general view of how a card may perform.

Generally a top tier card from a previous gen will perform very similar to a second tier card of the next gen. This isn't always true, but it is generally good if you are quickly looking at various gpus.
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post #6 of 9
Thread Starter 
My brain hurts deciphering amd's numbering system. nvidia cards seem to be even worse..


Thanks for all your input, I'm getting the picture, and I'm glad to see the 5870 I'm picking up will crush some serious higher priced cards.
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post #7 of 9
Thread Starter 
Are we doing the repeater?
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post #8 of 9
AMD changed the numbering system between the 5xxx and 6xxx series.

The top end of the 5xxx series and everything before that was the x8xx, the top end of the 6xxx series onwards will be x9xx.

/confusion thumb.gif
post #9 of 9
Price tags do not dictate performance - variables like number of pixel / vertex shaders, core speed, memory bus width, memory speed do! I use the list at Tech ARP to see which cards are better :-

http://www.techarp.com/showarticle.aspx?artno=88&pgno=4

That is the ATI list, but they do have others too, for Nvidia and other companies.

As a general rule, more pixel / vertex shaders = better performance, and you'll notice that the top cards of previous generations will have more pixel / vertex shaders than the entry level next generation. To aid comparison, they do list pixel and texture fill rates.

And here's a link to the other pages. :-) http://www.techarp.com/showarticle.aspx?artno=88&pgno=0

hope that helps :-)
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