HD 4870 review thread.

Any news of the 1gb version?

 

The Anandtech 4870 X2 review has a slide saying 1GB 4870 "coming soon" & showing it as before the 4850 X2

 

http://www.powercolor.com/eng/products_features.asp?ProductID=2253



I would probably go for 1GB HD4870!

 

Yes we know it exists, and that it's been available for pre-order for the thick end of a month now with a ratehr flexible ETA. The question is "when will it actually be arriving?".

EDIT: This is what Mr Gibbon has to say on his forums:

plus some fluff about the GDDR5 being prioritised for making the X2's. Take all that as you will.

 

I actually have a pair of 4850's that I have been looking over. Doing some Crossfire to SLI, And Driver software comparisons for Nvidia. I really do like the edge detection feature. 12x ED being my favorite mode on the ATI cards.

 

HIS HD 4870 for $193 after $20 MIR ?

This likely is a price mistake or one hell of a way to get people to shop from you. NewBiiz, a new site for eWiz.com has the HIS HD 4870 for $213 and also has a $20 Mail In Rebate. I was looking for the HD 4870 X2 to be out, but at this price I had to jump on the deal, or at least give it a shot. Slick Deals.

 

They have a palit 4870x2 for $534, but I don't see that being good value if you get get a 4870 for 193.

 

I really don't care about 1GB HD4870 that much, but I decided NOT to buy HD4870-512MB because PowerPlay is not working. I'm hoping ATI will fix this issue and also Bios flash fix for GPU-FAN. I have high hopes that all bugs will be fixed before 1GB-HD4870 will be released So I could buy 1GB-HD4870.

 

Never seeing club3d?? video cards before....
http://www.club3d.nl/index.php/products/graphics/item/339

 

European only. They've been making ATI cards for a while.

 

Thanks.

EDIT: Weird name club3d

 

Does anybody think will ATI die shrink RV770 sometime in the future or the project is done and ATI focus is RV870?

 

I'm thinking about getting this card, but can anybody confirm this will work on a pci 1.0a board? I cant find a source that will me it will work with 1.0a for sure.

Also, if it does work, will there be a big performance decrease it not being 2.0?

 

My Radeon HD3870 PCIE2 x16 runs just fine on intel P35 PCIE1 x16 motherboard.

No!

Only slightly on 800x600 or 1024x768 resolution.

 

I'm not sure that'd help it in the pad-limited department.

Seems like a secondary benefit of pushing process limits is basically avoiding a chip refresh on a smaller process, b/c by the time that becomes available you're already working on the next gen. I think.

 

Works perfectly fine on my 975X mobo.

Official quote

It might if they cut out the Crossfire Side Port since they aren't actually using it... but I think that might just be RV870.

 

I was wondering because ATI did with R600 80nm die shrink to RV670 55nm. "Same chip but smaller".

 

Hmmm, you're right. 55->40nm has the same ideal ~50% shrink as 80->65nm that RV670 achieved, but could RV770 drop to 128-bits and GDDR5? Would that mean 8 RBEs? I wonder how much of an effect that would have on framerates.

How many pads would dropping CSP save, anyway? RV770 is ~260mm^2 to RV670's ~192mm^2, what required the ~35% extra pads (assuming RV770 is roughly pad maximized)? Just an accumulation of greater power draw and higher bandwidth connections?

 

Or possibly having 2x die shrunk Rv770's each with a 128 bit bus on the same package (2 dies, not 2 cores in the same die) which then has an aggregate 256 bit bus to the memory on board?

Regards,
SB

 

I was thinking more like this!

ATI Radeon HD4870+
RV770+ @ 40nm
900MHz GPU
128bit @ 1100MHz GDDR5 ~70GB memory bandwidth
1GB total video memory graphics

It should equal performance with 55nm-HD4870.

But the price cost would be a lot less; say they would sell for ~$190 US dollars.