New rumor about ATI Southern Islands

[RaZz!]

Nice thanks flopper

*snip*

If true, numbers seems very good ...

the specs definately fit between the 5850 and 5870. so, if AMD did the right optimizations, can we expect the 6770 to perform almost like the 5870?

if this'd really be the case, the 6870 will be a monster (considering that they did it just by tweaking their cypress architecture on the same fabrication process)

[flopper]

the question is, how big is the die and power since its still on the same 40nm.
the 460 is destroyed though.
if the price it good.

maybe its time for a dualcard this time.

[Baron_Davis]

Do you guys think the 6870M will be about as fast as a 6770? Does that mean that laptops using 6870M CF will be roughly equivalent to 5870 CF?

[Olivon]

the specs definately fit between the 5850 and 5870. so, if AMD did the right optimizations, can we expect the 6770 to perform almost like the 5870?

if this'd really be the case, the 6870 will be a monster (considering that they did it just by tweaking their cypress architecture on the same fabrication process)

Yeah right RaZz!

It's possible that Barts XT performs really near than Cypress XT with best tesselation capabilities. Prices, TDP and availability will be good to know though but 67X0 is maybe a future GTX 460 killer

[SimBy]

Oh well looks like it's fake.

[Olivon]

Oh well looks like it's fake.

It's a fake

[demonkevy666]

so the 6770 is going to be better than the 5870?

doesn't look like that completely to me

the texture fill rate on the 5870 is still higher 68 vs 57.6. The pixel fill rate is the same at the same clock.

[Kaboka]

If the roumers about the 6770 is true it sound like a rly nice card! I just bought a XFX BE 5850 for 50% off (200$, normal cost here in denmark is 400$ Oo) and i dunno now if i should keep the card or wait for this :o decision decisions!

[demonkevy666]

I just had a though what if this die is 50% smaller then cypress ?

it looks to be about 20-25% less shader's and TMU's for about the same level of performance

[Manicdan]

looks kinda dumb that Barts was given slow memory, only 1ghz and 1.05ghz GDDR5

i hope thats due to low voltage memory to give it a lower power consumption, which means super overclocking available for us.

[ryan92084]

at least this naming scheme makes more sense than the last one posted
none of that barts being the 6850/70

[ohnoitseddy]

I'm not sure about the slide either. I mean, Barts XT has 1280 shaders. They're 4D, so that might make them take more space than 5D shaders too. Add a 256 bit bus and to me it seems impossible for AMD to maintain HD5770's die size. What does that mean for the HD6870? And, just as importantly, what about the dual GPU card? Would they still be able to squeeze that into 300W?

The only way I see this slide could be true is for the high end chip not to have twice Barts' shader count... Which actually may make some sense given the gap seen between the HD57x0 and HD58x0.

[Sn0wm@n]

i love those rumors thread ... they always provide some good lulz

[LordEC911]

and you know this from facts??? i doubt it ...

Not fact but I'm 99% sure.

Die size should be quite a savings over Cypress, think around 20-25% smaller. So that is quite small for something that handily beats the GTX460. These are the spiritual successors to Juniper, they are not trying to keep it at the same size nor at the same current price...

[LightSpeed]

looks kinda dumb that Barts was given slow memory, only 1ghz and 1.05ghz GDDR5

i hope thats due to low voltage memory to give it a lower power consumption, which means super overclocking available for us.

Given that 5.0Gbps GDDR5 is still used, id say memory overclocking should equal or beat Cypress, depending on tweaks to the memory controller.

If slower memory is eventually used, that would be a different scenario.

On a side note, IIRC Barts will use Hynix. What did the ref 58xx boards use? I forgot

[Sn0wm@n]

if die size is really that small then we can deffinatly say that its not a rebrand .. especially if it beats out the gtx460 .. but why go smaller ??? easier to be profitable ????

[LightSpeed]

if die size is really that small then we can deffinatly say that its not a rebrand .. especially if it beats out the gtx460 .. but why go smaller ??? easier to be profitable ????

Lower cost and better yields. Win

[Nintendork]

Do you guys think the 6870M will be about as fast as a 6770? Does that mean that laptops using 6870M CF will be roughly equivalent to 5870 CF?

You can only hope plain rebrands in the mobile parts.

mobility HD5750 --> mobility HD6650
mobility HD5870 --> mobility HD6770

*No high end card


Mobile parts require die shrinks to launch faster gpu's.

[Sn0wm@n]

Lower cost and better yields. Win

i hope they price these aggresively so i could get something decent without breaking the bank

[Jowy Atreides]

It's always the most exciting time for hardware nerds before anything concrete is released.
Even if it's good info, the fun is in not knowing.

I think barts will very likely be more than equal to the 5850.

The 4770 was better than the 3870 and the 5770 was equal to the 4870.

[Baron_Davis]

You can only hope plain rebrands in the mobile parts.

mobility HD5750 --> mobility HD6650
mobility HD5870 --> mobility HD6770

*No high end card


Mobile parts require die shrinks to launch faster gpu's.

I dun get your example...shouldn't it be:

mobility HD5870 --> mobility HD6870

where

mobility HD5870 = desktop HD5770

and

mobility HD6870 = desktop HD6770

??

[Jowy Atreides]

[Olivon]

...

Too hard to look at previous page ?

[Jowy Atreides]

Too hard to look at previous page ?

Too hard to verify the riemann hypothesis?

[Olivon]

Too hard to verify the riemann hypothesis?

One thing sure is that's more easy to read previous page