Tahir said:
I think it is a bit fruitless to discuss NV50 before we have any hints on NV40. I see no news or noteworthy facts about what NV40 actually is. Thinking of NV50 is like multiplying that feeling of no info I have by 10^10.
What? No NV40 info? What type of real deep hole have you been hiding in?
Here are 10 "NV40 facts" ( okay, some are not 100% sure, but some seem pretty darn reliable to me, I'd be surprised if 60% of it wasn't right )
NV40
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1) 600Mhz core on IBM's 0.13u technology, 48GB/s memory bandwidth with 256-bit GDDR2
2) 8x2 ( possibly 16x0 or 16x1 mode, although I'd find that rather stupid personally due to the focus on AA ).
3) FP32/FP16/FX16, this means PS1.4. is done in FX16 100% legally, while it would seem logical for PS2.0. partial precision to be done in FP16 unless MS decides to expose the HW better in an upcoming DX9 revision.
4) ( unsure ) HUGE die, NVIDIA is most likely artificially increasing die size to make cooling more efficient.
5) Slightly beyond PS3.0. / VS3.0. specificiations ( not anywhere as much as PS2.0.+ and VS2.0.+ were compared to the PS/VS2.0. standard though, I assume ).
6) Support of a Programmable Primitive Processor
7) The only units being shared between the VS and the PS are the texture lookup units ( NOT addressing units; addressing is still done on a standard FP32 unit ).
8 ) Most likely no 512MB version, that's still overkill IMO.
9) PCI-Express support, most likely ( but not certainly ) through a compatibility bridge between AGP and PCI-Express.
10) Completely new AA algorithm, most likely a stochaistic(sp?) approach.
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Release: February-March 2004
And when it comes to the NV50...
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1) Full ILDP; sharing of VS/PS units
2) 0.09u most likely
3) Not a TBDR!
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Release: Mid 2005, most likely ( SIGGRAPH? )
It's not because GPU:RW isn't online anymore that it means we don't know anything about NVIDIA's next gen products
Uttar