AMD RV770 refresh -> RV790

[fellix]

Right in the middle, as I guessed!

The new die should fall between 280 and 284 mm² by my own measurements against RV770.

 

[CarstenS]

Did anyone else notice the latest version of GPU-Z (which supports RV740 and RV790) report the HD4890 to be 282mm2 compared to the HD4870 being 256mm2?

And what does it say on transistors?

 

[CJ]

And what does it say on transistors?

956M just like RV770.

 

[Jawed]

RV790 is definitely not functionally identical to RV770:

http://forum.beyond3d.com/showpost.php?p=1281172&postcount=7

Now that could be nothing more than a bug fix, but regardless it appears to be a difference that goes right across the array of SIMDs as it involves moving data into the register file.

Can any games be sped up by this change? Dunno.

Jawed

 

[CarstenS]

956M just like RV770.

Nice riddle if we take GPU-z infos for granted, isn't it?

 

[neliz]

Nice riddle if we take GPU-z infos for granted, isn't it?

I don't think much changed in GPU-Z instead of deviceID string recognition for a couple of cards. taking those numbers as hard facts might get some people dissapointed.

 

[CarstenS]

taking those numbers as hard facts might get some people dissapointed.

But then some people might also be disappointed if those numbers turn out to be true.

 

[maniac]

GPU-z is just a database. It's not detecting the number of transistors for fuck's sake

 

[AlexV]

GPU-z is just a database. It's not detecting the number of transistors for fuck's sake

 

[maniac]

is that supposed to be you in your best days?

 

[DegustatoR]

Nice riddle if we take GPU-z infos for granted, isn't it?

Not really. Lower transistor density may be the reason of higher clocks limit.

 

[entity279]

Not really. Lower transistor density may be the reason of higher clocks limit.

Yes. But no tranny count of RV790 has been leaked so..

 

[silent_guy]

Not really. Lower transistor density may be the reason of higher clocks limit.

Nah...

 

[ShaidarHaran]

is that supposed to be you in your best days?

What are you, 12?

 

[digitalwanderer]

KILL IT WITH FIRE!!!!

 

[Cookie Monster]

GPU-z is just a database. It's not detecting the number of transistors for fuck's sake

Wow did someone woke up on the wrong side of the bed..

 

[Farhan]

KILL IT WITH FIRE!!!!

MAN T3H HARP00NS!!!

 

[Betanumerical]

MAN T3H HARP00NS!!!

 

[CarstenS]

GPU-z is just a database. It's not detecting the number of transistors for fuck's sake

True, but some knowledgeable does provide the numbers for the database - for transistors as well as for die size. And since it's not detecting die-size either…

 

[Silent_Buddha]

True, but some knowledgeable does provide the numbers for the database - for transistors as well as for die size. And since it's not detecting die-size either…

That could be or they could just be using Rv770 numbers for anything they don't know about Rv790, which is more likely...

Regards,
SB