5770 preview

[mactronix]

Dont think this has been posted yet
http://www.bit-tech.net/hardware/graphics/2009/10/07/first-look-ati-radeon-hd-5770/2

Mactronix

 

[shadow187]

The core shown is Juniper: a derivative of the Cypress already launched but not the same according to AMD slides we have already, unlike the HD 5850 which has two of Cypress's 20 SIMDs disabled. This is the only entirely new core preceding the Redwood and Cedar cores which will launch on the low end $100 mark early next year.

I smell modding :3

 

[mactronix]

There is talk that ASUS will do a voltage adjustable one as well Modding/ Overclocking here we come. Im a bit upset that the reports that teh bus would be 192 seem to be unfounded though Guess that just means its a really good card and they had to do it to stop it compeating with a 5850 when overclocked ?

Mactronix

 

[rangers]

http://www.tomshardware.co.uk/forum/page-271305_15_0.html

with benchmarks

 

[mactronix]

Seen it before and i think we both posted that one the same night as i remember seeing it after i had posted it within another thread to show JDJ that the card being tested was a 5750 and not a 5770.

Mactronix

 

[shadow187]

Oh yeah, I remember that little quarrel..

So it seems the 5770 can be OC'd to a 5850, and hard-modded to a 5870?

 

[Dekasav]

Oh yeah, I remember that little quarrel..

So it seems the 5770 can be OC'd to a 5850, and hard-modded to a 5870?

It's a completely different core, no unused SIMD to active. Though the 5850 might be moddable.

 

[mactronix]

Oh yeah, I remember that little quarrel..

So it seems the 5770 can be OC'd to a 5850, and hard-modded to a 5870?

No what i meant was that if they gave it a 192 bit interface it would be too cloce in performance to the 5850 so they cut it back as a way to hobble the card.
Mactronix

 

[mactronix]

Bit tech pulled the link but concretefinish, another forum member posted this. http://www.tomshardware.co.uk/forum/271650-15-first-pictures-5770-leaked-early

Looks like they ripped it from Bit tech

Mactronix

 

[hallowed_dragon]

From what I heard the card will officially launch on 13th this month. From the specs I guess the card will fit nicely between 4890 and 5850. If this is true this will be the best selling card from this generation IMHO

 

[mactronix]

Im just really concerned about the 128 bit bus, I wonder where Andand got the 192 bit bus from ?
It all seems weird to me i mean why give a card 1GB of GDDR5 Ram when the bus will stop it playing at resolutions where thats going to make a differance anyway ? They could have made them cheaper by using half the ram.

Mactronix

 

[hallowed_dragon]

Im just really concerned about the 128 bit bus, I wonder where Andand got the 192 bit bus from ?
It all seems weird to me i mean why give a card 1GB of GDDR5 Ram when the bus will stop it playing at resolutions where thats going to make a differance anyway ? They could have made them cheaper by using half the ram.

Mactronix

At 192bits+ 512VRam the 5770 would come close or become equal to 5850 with some OC at resolutions below 1680x1050. I think ATI wanted to give mainstream users a card which can play games at any resolution, but with lower FPS than 5850 all the time. This would put the 5770 firmly in the mainstream market and the 5850 in the mid-high end market, providing a good separation between cards. ATI wanted to avoid a 4770-4850 situation.

 

[mactronix]

Yes i understand that and posted as much just above you, Its just stupid to see a card hobbled like this. If the card can compete with a 5850 given a decent bus then why have a 5850 at all ?
I have seen some benchmarks and am looking for more but what i have seen so far have been 4670 1GB vs 512 versions and there is just no differance between the two even in Crysis.

Mactronix

 

[hallowed_dragon]

If the card can compete with a 5850 given a decent bus then why have a 5850 at all ?

More cards, more profit. The 5850 and 5770 will sell at different values providing ATI a foothold in every market. I see the 5770 card be bought by people who want performance for little cash or by people who want to OC the **** out of it just to come close to the 5850. The 5850 will be bought by people who want performance at higher resolutions and want to OC the **** out of it to come close to the 5870. :lol: . So everybody is happy, espcially OCers

 

[smoggy12345]

Hopefully Nvidia will bring out something with similar price and performance and only needing 1 pci power connection each....Ive got an SLi mobo and 600watt (with only 2 PCI-e connectors) and dont want to have to overhaul the system just yet...maybe able to get away with 2 of these in SLI (probs much better performance than a 5850 for same price!)

 

[rangers]

http://en.expreview.com/2009/10/08/asus-radeon-hd-5770-benchmarked.html/2

http://www.theinquirer.net/inquirer/news/1557983/leaky-slideware-hd-5770

 

[rawsteel]

So it seems its 800 sp's after all. That will put it just behind 4890 by my opinion. Why?

Because its specs are exactly as 4890 except the memory bus. Still dont know the count of the ROPS/Textures but as they go bundled in stacks I would suppose same as 4890.

I think thats why they ended up with $159 price tag. If it was faster than 4890 it would be priced more closely to $200 mark

so my guess is 5770 = 4870
and 5750 = 4850

the 5750 with 512 MB ram is especially tasty with $109 mark. Yummy

 

[mactronix]

So it seems its 800 sp's after all. That will put it just behind 4890 by my opinion. Why?

Because its specs are exactly as 4890 except the memory bus. Still dont know the count of the ROPS/Textures but as they go bundled in stacks I would suppose same as 4890.

I think thats why they ended up with $159 price tag. If it was faster than 4890 it would be priced more closely to $200 mark

so my guess is 5770 = 4870
and 5750 = 4850

the 5750 with 512 MB ram is especially tasty with $109 mark. Yummy

So nothing to do with the screen shots rangers posted that have it performing slightly behing a 4890 then ?

Mactronix

 

[ConcreteFinish]

http://forums.overclockers.com.au/showpost.php?p=10969867&postcount=3200

More pics & info

 

[ConcreteFinish]

Does anyone know how the 108W/18W Power consumption at Max/Idle Power for the 5770 compares to the 4890 or 4870? The only power consumption numbers I can find for the 48**'s is for total system consumption at the outlet, but I’m not sure where the pictures from my post above is getting the 108W/18W numbers.

 

[mactronix]

Does anyone know how the 108W/18W Power consumption at Max/Idle Power for the 5770 compares to the 4890 or 4870? The only power consumption numbers I can find for the 48**'s is for total system consumption at the outlet, but I’m not sure where the pictures from my post above is getting the 108W/18W numbers.

Very very favourably is the answer to that http://www.xbitlabs.com/articles/video/display/radeon-hd4890_6.html#sect0


Mactronix

 

[ConcreteFinish]

Very very favourably is the answer to that http://www.xbitlabs.com/articles/video/display/radeon-hd4890_6.html#sect0


Mactronix

Thanks, that is exactly the comparison I was trying to find. So it looks like the 5770 = 4850 in power consumption. That will be perfect for my needs.

 

[randomizer]

HD 5770 is currently listed as $289 in Australia. Supposedly in stock too.

 

[mactronix]

Might wait on this launch to see what the benchmarks say when run under a retail W7 and DX11 environment.

Mactronix

 

[hallowed_dragon]

I will bite the bullet and say the 5770 will be better than the 4890 with a slight OC.