AMD: R8xx Speculation

[fellix]

Moar pic's of the Cypress board

Soon naked with better quality.
Drivers are still unavailable for this one tester.

 

[DegustatoR]

I have to ask you, How does PhyX have more marketability when there's a lot of limiting factors the consumers have to face in order for them to use it?

More limiting factors than, say, for the use of DX11 tesselation?

 

[neliz]

More limiting factors than, say, for the use of DX11 tesselation?

The biggest benefit of Tessellation would be that it doesn't cut your frame-rate in half when you enable it?

 

[A.L.M.]

It is definitely not a dual core, and the packaging suggests that it is not a MCM either.

Uhm, and how do you explain the double Rasterizer and Hierarchical Z?

 

[DegustatoR]

The biggest benefit of Tessellation would be that it doesn't cut your frame-rate in half when you enable it?

But it doesn't provide as much quality improvements also?
Plus how do you know what performance hit a heavy tesselation will have compared to no tesselation or even LOD tesselation?

 

[fellix]

Moar pic's of the Cypress board

Soon naked with better quality.
Drivers are still unavailable for this one tester.

And here are the hi-res shots - click!

The FTP server with the test drivers is still unaccessible for download.

There are two unused power phase pads on the board -- probably the "SIX" board with 2GB have them?!

 

[Scrat]

And here are the hi-res shots - click!

The FTP server with the test drivers is still unaccessible for download.

There are two unused power phase pads on the board -- probably the "SIX" board with 2GB have them?!

He forgot to blur the serial on one of the photos...

 

[Karoshi]

http://www.semiaccurate.com/forums/showpost.php?p=4514&postcount=2
Im not registered, cant confirm if the pictures are the ones posted in .pl or somewhere east of germany, i forgot the linky, a few days ago.
Anyway I assume they are. He says they achieved 1170 on the cores with LN2. Sounds good.

 

[no-X]

Some (AMD made) benchmarks:

http://www.czechgamer.com/novinky/5055/ATI-Radeon-HD-5XX0-prvni-benchmarky-jsou-venku.html

 

[psolord]

Some (AMD made) benchmarks:

http://www.czechgamer.com/novinky/5055/ATI-Radeon-HD-5XX0-prvni-benchmarky-jsou-venku.html

I could bet that this -25% of the 5850 vs the GTX 285 is Dead Space and that 120% is Crysis!

 

[rpg.314]

Uhm, and how do you explain the double Rasterizer and Hierarchical Z?

But in a dual core gpu, wouldn't everything be doubled???

In the chip hell pic, I still see a single dispatch processor, single command processor, single tesselator, single geometry assembly unit and a single vertex assembly unit.

It seems more likely that the notions os single core vs dual core have been muddied, vis-a-vis a CPU. If anything, only the stuff that is double seems to have been designed to replicated in a multi core fashion.

 

[fellix]

Scaled comparison with HD4890:

The Cyrpess board is actually a tad shorter in height, except for the CF fingers.

 

[trinibwoy]

Uhm, and how do you explain the double Rasterizer and Hierarchical Z?

Since when does having more than one of a given unit on a die classify something as multi-core? We've had multiple ROPs and TMUs for ages. Now the front-end is getting some parallel love.

Btw where's the "fixed-function" tessellator?

 

[rpg.314]

So cypress is 256 bit for sure.

 

[leoneazzurro]

Btw where's the "fixed-function" tessellator?

Or tessellators ?

 

[rpg.314]

Since when does having more than one of a given unit on a die classify something as multi-core? We've had multiple ROPs and TMUs for ages. Now the front-end is getting some parallel love.

Good point there. I'd say the sgx543 from img is a real multi-core gpu. You just choose the number of cores (from 2-16, all numbers supported) you want and the perf scales automatically (though 100% is not expected of course).

Btw where's the "fixed-function" tessellator?

I thought there as a tessellator unit siting in the center in the chip hell image, just above the dispatch processor.

 

[trinibwoy]

I thought there as a tessellator unit siting in the center in the chip hell image, just above the dispatch processor.

Ooooh, completely missed that

 

[DegustatoR]

I could bet that this -25% of the 5850 vs the GTX 285 is Dead Space and that 120% is Crysis!

-25% is for NV-preferable application (i.e. CoH).
+120% is for AMD-preferable application (i.e. HAWX) with MSAA 8x.
You shouldn't expect a mindblowingly high Crysis numbers.

 

[neliz]

Are these the HD58x0 leaked benchmark scores that are exactly 1.6 times the HD4870 scores?

 

[leoneazzurro]

I thought there as a tessellator unit siting in the center in the chip hell image, just above the dispatch processor.

Sure that block is named "tesselator"?