So wait, there's a 4860 now?

gonintendo

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oh, ok. that's interesting. I agree w/ ati that it would have been a bad move. they already had a ton of cards coming out.
 

gonintendo

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RV790 core with HDMI and DisplayPort
just saw that on newegg. so it's actually a cut down 4890, not 4870. I guess they had alot of extra 4890s or low quality rv790 gpus to get rid of.
 

AMW1011

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Hmm, wiki cited RV740. I'm not sure what to believe. I remember a 4860 was supposed to come out with the 4830 but was scraped, then again that was ATI and this is Sapphire. I suppose there is no reason why Sapphire couldn't just use RV790s.
 
It says RV790. Basically it's a 4890 that wasn't up to snuff. AMD has actually been selling such chips under the name of the Radeon 4730 since like June or so to fill the low yield gap of the 4770. Since AMD would rather sell 4890s instead, I think they didn't market it to the US because then they would find themselves crippling chips they could otherwise sell as 4890s. I'm guessing these 4860 chips are just chips that weren't good enough to be in a 4890, but too good to sell as a lowly 4830
 

one-shot

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Those cards are both 55nm. The only 40nm card in that generation that I'm aware of is the 4770. Otherwise, the rest were 55nm. The 5*** series are 40nm.
 

flyinfinni

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Could they be using the 4860 as a gap filler? The 5xxx series supply is inconsistent at best. The 4870 is getting harder to find, and more expensive. The 4830 and 4850 are also really hard to find, and increasing in price. The 4890 is the only 4xxx series card that is still consistently easy to find and prices haven't actually gone UP on. Maybe they're just switching to the RV790 and making some other lines than just the 4890 so they have something to continue selling while they figure out the 40nm production issues?

Also- I would imagine you could xfire a 4850 and 4860- supposedly you can xfire ANY 2 48xx series cards.

On a side note- I wonder how far you could OC one of these and how they actually perform with the GDDR5, 256 bit memory bus, etc. Could you clock it to 4870 or even 4890 levels you think?

Edit: just found this:
http://www.tcmagazine.com/comments.php?shownews=31401&catid=2
 

JofaMang

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Yeah, but.... it's Palit. The less product and there will be less armed people driving around aimlessly looking for the Customer Service department. Sapphire might not have the best CS, but they are ATI's biggest vendor, and they have made cards that ATI didn't officially release in the past (4850x2 as mentioned above). Put the tin foil hat down!