NVIDIA GT200 Rumours & Speculation Thread

[tacopaco]

wonder what the core/memory/shader speeds are

 

[ShaidarHaran]

Just out of curiosity:
does anyone else think it likely that NV will market GTX 280 as a 480 shader part, just for marketing purposes (given RV770's 480 SPs of course).

Oh yeah, one other thing:
has the infamous "missing mul" reappeared as this sudden "50% performance increase per clock" for the SPs?

 

[rendezvous]

wonder what the core/memory/shader speeds are

Given the table above i get:
280:
Mem: 2,03 GT/s
Shader: 1,53 GHz
TMU: 625 Mhz

260:
Mem: 2,05 GT/s
Shader: 1,56 GHz
TMU: 625 Mhz

 

[ShaidarHaran]

Hmm... So, it's 24 SPs per eight TMUs, e.g. dual 12-wide SIMD per cluster?

AFAIK the only functional units in NV's current USA that are not fully dissociative are the ROPs and the memory channels (i.e. one quad ROP per 64-bit memory channel).

 

[ShaidarHaran]

Given the table above i get:
280:
Mem: 2,03 GT/s
Shader: 1,53 GHz
TMU: 625 Mhz

260:
Mem: 2,05 GT/s
Shader: 1,56 GHz
TMU: 625 Mhz

Congrats!

You've just outted the fastest monolithic GPU in history, how does it feel?

 

[nAo]

Hmm... So, it's 24 SPs per eight TMUs, e.g. dual 12-wide SIMD per cluster?

The joy of working on scalars in SOA style..

 

[tacopaco]

Given the table above i get:
280:
Mem: 2,03 GT/s
Shader: 1,53 GHz
TMU: 625 Mhz

260:
Mem: 2,05 GT/s
Shader: 1,56 GHz
TMU: 625 Mhz

wait, your saying the shader will be faster on 260?!?! wait and memory?

 

[ShaidarHaran]

wait, your saying the shader will be faster on 260?!?! wait and memory?

Sure, why not? Happened with G80 as well.

 

[tacopaco]

thats true..... forgot about that nothing a little ocing can fix
i mean i know the 280 faster to begin with but i like my specs
anyway what kind of ocing potential do ya think these have anyway being 65nm they gotta be hot already

 

[nutball]

wait, your saying the shader will be faster on 260?!?! wait and memory?

Rounding errors?

 

[tacopaco]

Rounding errors?

maybe... anyway not that big of a deal just release it already nv!

 

[Vincent]

I am the fool.

........................

 

[tacopaco]

finally some decent pics

 

[fellix]

Cool G80 die shots!
LoL, they even chopped the edges while measuring.

 

[w0mbat]

How come they arent on the PCGH homepage if its G200? They should be G80 Die pics.

 

[Jawed]

This is approaching being comedy genius...

Jawed

 

[tacopaco]

they love to use big smiley's over there.....
it'd be nice if they leaked actual pics of gt200

 

[Tim]

finally some decent pics

Yeah nice, so the GT200 is 486mm2, that is almost the exact same size as the G80. That would put the GT200 at around 1.3 billion transistors.

Edit:
That is actually a G80 pictured, is it not?

 

[tacopaco]

si, i believe so

 

[Lukfi]

Well I see twelve memory chips there... that would pretty much mean it's a G80.