I know, I know. Another graphics card question. Currently I have a 7770. I'm looking to upgrade, and I'm wondering if its worth getting 1 270X, or if I should just stick to another 7770. I think the 7770 will have Mantle support, right? And also, is it possible to crossfire a 260X with a 7770, and would this be much better of an option than the latter solution?
Graphics Card Upgrading Question (AMD)
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endeavour37a
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- Feb 25, 2013
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u_gonna_squeal_b4_we_cookya,
I don't really understand the AMD XF compatibility thing, is it just the cores? Like can the 280x and 7970 and 7870XT (Tahiti LE) be XFed because they have a Tahiti core? Could a 270x with a Curacao XT XF with a 7870 with a Pitcairn XT core ( hear they are both the same core, just different names)?
Was just wondering if you could/would explain this to me as I don't know how that works, thanks for any help on this
I don't really understand the AMD XF compatibility thing, is it just the cores? Like can the 280x and 7970 and 7870XT (Tahiti LE) be XFed because they have a Tahiti core? Could a 270x with a Curacao XT XF with a 7870 with a Pitcairn XT core ( hear they are both the same core, just different names)?
Was just wondering if you could/would explain this to me as I don't know how that works, thanks for any help on this
endeavour37a
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u_gonna_squeal_b4_we_cookya :
endeavour37a :
u_gonna_squeal_b4_we_cookya,
I don't really understand the AMD XF compatibility thing, is it just the cores? Like can the 280x and 7970 and 7870XT (Tahiti LE) be XFed because they have a Tahiti core? Could a 270x with a Curacao XT XF with a 7870 with a Pitcairn XT core ( hear they are both the same core, just different names)?
Was just wondering if you could/would explain this to me as I don't know how that works, thanks for any help on this
I don't really understand the AMD XF compatibility thing, is it just the cores? Like can the 280x and 7970 and 7870XT (Tahiti LE) be XFed because they have a Tahiti core? Could a 270x with a Curacao XT XF with a 7870 with a Pitcairn XT core ( hear they are both the same core, just different names)?
Was just wondering if you could/would explain this to me as I don't know how that works, thanks for any help on this
At first, I was under the impression that any AMD desktop GPU that started with the same first two numbers could be crossfired such as any 77xx card can x-fire with any 77xx card and any 78xx card with any 78xx. The fact is, because of the 7790 and 7870XT (Tahiti, same core in the 7950 and 7970) this is not true anymore. Most of the first AMD 7xxx series cards were released in early 2012. The 7870XT was released in late 2012 and the 7790 in early 2013. For that period of time between January 2012 and November 2012 when the 7870XT came out, it was true that you could crossfire two cards as long as they share the same first two numbers. The best reference is this chart on wikipedia which shows every GPU in the 7xxx series lineup and their code names. This chart shows the R5, R7 (aka HD 9000) series cards.
As you can see from those two charts, there is no HD 7xxx series card that is compatible with the R9 270x. The only card that is compatible with it is the yet to be released R9 270 which I am assuming is a crippled 270x possibly with less stream processors, ROPs and texture units and the same GDDR5 memory, 256-bit memory bus and SMX count.
That helps a lot getting a understanding about this, Thank You very much for taking the time to explain what the heck is going on with this. Thanks for the tip on the chart, that helps a lot also. with the new cards coming out and new pricing I am trying to get them lined up on performance/pricing and bang for the buck.
The thing is if someone has an existing card and wants to put a new version AMD card with it, it's hard to say if it can XF, just trying to get info so I don't tell someone wrong stuff.
It seems AMD had the king of the hill for 2 or 3 weeks with the R9 290x, good for them, NV is ready to take it away on Nov 7th it seems with a 780Ti, go figure. They say it is an unlocked GK110-400 and going to be priced at $700, hard to understand they took everyone to the cleaners who bought a Titan at $999, that's life I guess. Also 7GHz memory, WOW!
endeavour37a
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I agree the 290x is a rock& roll deal for the money, hard for anyone to best it. I read the 290 will have the basically same specs with slower clocks from VideoCardz, if it is $75 cheaper than the 290x it will make the 780 more or less a dead card. Yet rumor has it that the 780 is going away and will be replaced with a 780GHz at the $500 price point, time will tell.
Also a "Black" edition of the 780Ti is going to be released, price unknown, will Oc out of this world and sport 6 and 12 GB of 7Ghz memory, a real monster it seems.
All of this movement in pricing from NV we should thank AMD for, they rocked the boat and their new Hawaiian GPU made all of this happen. I hope they sell the heck out of them and also their lower end R7 series like the 240,250 and 260. That 260 is a pretty darn good card for $140 and only needs a low end PS to run it with only 1 power cable to it.
The CPU world is a bit dull now, glad the graphics stuff is moving in the right direction
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