NV35 details

[godmare]

A few more tidbits leaked
The Inquirer

AS WE SAID A WHILE BACK, the NV35 memory controller is a redesign. But as we previously said in our article memory controller was redesigned but there was little time to do many other modifications, and the limitation in the memory controller needed fixing, not the GPU speed nor the memory.
A memory controller and support for DDR 1 at 450 MHz will give Nvidia 28.8 GB/sec real bandwidth while NV30 had only 16 GB/s, making this new card almost twice as fast if you're counting memory bandwidth.

The pipeline number will remain four while the NV35 will use two texture memory units (TMUs) that will give eight textures per clock but just if multi texturing is used.

 

[Wurrmm]

looks good, but this has been posted a bunch of times already.

 

[Jagercola]

Would someone mind explaining the difference between a 4x1 pipe on the NV35 and the 8x1 pipe on the Radeon 9800? Also, is the 9800 Pixel Shader 3.0 compliant? Not sure if I should hold out for the NV35 or get the 9800. But want the one that supports the newest standards.

 

[T9D]

..

 

[godmare]

Originally posted by: Wurrmm
looks good, but this has been posted a bunch of times already.

There have been several posts about the new chipset, but this is the newest info afaik. If you can provide a link to a repost then I'll concede

 

[godmare]

Originally posted by: Jagercola
Would someone mind explaining the difference between a 4x1 pipe on the NV35 and the 8x1 pipe on the Radeon 9800? Also, is the 9800 Pixel Shader 3.0 compliant? Not sure if I should hold out for the NV35 or get the 9800. But want the one that supports the newest standards.

4 pipelines by 2 TMUs in the nVidia versus 8x1 in the ATi; If I understand correctly, the ATi would then give 8 textures per cycle in single texturing, whereas the nVidia delivers 8 textures/cycle only in multi-texturing.

 

[bunnyfubbles]

450MHz DDR1 is pretty damn fast... someone have a reason how they can use 450MHz DDR1 and not 500MHz DDR2 that is used with the NV30?

 

[godmare]

Originally posted by: bunnyfubbles
450MHz DDR1 is pretty damn fast... someone have a reason how they can use 450MHz DDR1 and not 500MHz DDR2 that is used with the NV30?

Heat and Rambus limitations (in the NV30, NV31, and NV34, DDR2 was not optimized due to bus limitations.)

 

[Deeko]

We'll see. Has potential.

 

[BenSkywalker]

Would someone mind explaining the difference between a 4x1 pipe on the NV35 and the 8x1 pipe on the Radeon 9800?

The NV30 is the only board out, I wouldn't count on the exact configuration of the NV35 just yet(actually, since the Inquirer states it will be a 4x2 setup my money would currently be on anything but that ). For the NV30 it is a 4x2+4x0 design based on all available information compared to ATi's 8x1 implementation. In single textured games ATi should be able to ouput eight texels per clock while nVidia would only be able to output four(eight pixels for ATi, four for nVidia). In multi texture games both boards output eight texels per clock(each ouputting four pixels). In games that utilize stencil ops nV's board can output eight pixels per clock as does ATi's. The problem with nV's 'other' four pixel pipes is they not only have no TMUs, they can't even output color values. This makes them useful only in stencil fill instances, where the board should perform considerably better in relative terms compared to the competition(as you have a decent amonut of transistors sitting idle until they can be utilized by a game that relies on stencil ops).

ATi- Eight full pixel pipes
One TMU per pixel pipe

nVidia- Four full pixel pipes
Two TMUs for each of those pixel pipes
Four partial pixel pipes
No TMUs nor color output for those pixel pipes

 

[Jagercola]

Thanks for the explanation... quite helpful. I hope Nvidia can compete with the 9800 with the NV35. Competition is good for everyone.

 

[BenSkywalker]

Missed the rest of your questions in my last post, my apologies-

Also, is the 9800 Pixel Shader 3.0 compliant?

No, and it is extremely unlikely that the NV35 will either(I would be shocked if it did). The core modifications that need to take place to support the 3.0 shader standards are not likely to see light prior to the NV40/R400 at the earliest. I wouldn't sweat that too much though, the flexibility of the current setup is such that it will be quite some time before PS2.0 isn't enough to get the job done(devs really haven't come close to pushing PS1.1 yet).

Not sure if I should hold out for the NV35 or get the 9800. But want the one that supports the newest standards.

The NV35 should launch in two weeks(give or take a couple of days), I would hold out until then and see what it has to offer and when it will be available at the retail level.

 

[JeremiahTheGreat]

If their FSAA + AF speed AND quality is significantly improvedand i'm buying one!!!

 

[Jagercola]

Will the NV40/R400 be out before Doom 3 and Half Life 2 are out? Are is the 9800 and NV35 going to be the latest releases? Then someone said something about something between the 9800 and the R400. Thanks -Will

 

[godmare]

Originally posted by: Jagercola
Will the NV40/R400 be out before Doom 3 and Half Life 2 are out? Are is the 9800 and NV35 going to be the latest releases? Then someone said something about something between the 9800 and the R400. Thanks -Will

Half-Life 2 release date is listed as september 30 at Gamestop, but I'm not sure about Doom 3. This article says NV40 should be out by the end of the year, ahead of the R400.

Edit:
Doom 3 out december 1 at Gamestop

 

[Pete]

I'll be gobsmacked if NV40 drops six months after NV35. I really doubt we'll see NV40 or R390 before next spring (ATi have said they're on an 18-mo. cycle of doubling performance for quite a while, and nV will have NV36 for the fall).

The high-end competition at HL2-time will likely be NV35 vs. 9900 Pro (both 256MB, 400+MHz cores, 450+MHZ 256-bit DDR RAM).

BTW, this is fairly old info for B3D forum members.

 

[ultimatebob]

Industry rumors are all cool and all that, but none of this information makes a difference until we can actually go on Newegg and purchase one. When is THAT supposed to happen?

 

[godmare]

Originally posted by: Pete
I'll be gobsmacked if NV40 drops six months after NV35. I really doubt we'll see NV40 or R390 before next spring (ATi have said they're on an 18-mo. cycle of doubling performance for quite a while, and nV will have NV36 for the fall).

The high-end competition at HL2-time will likely be NV35 vs. 9900 Pro (both 256MB, 400+MHz cores, 450+MHZ 256-bit DDR RAM).

BTW, this is fairly old info for B3D forum members.

That is my contention as well... but the NV35 is being introduced only shortly after the NV30 has become available, which lends some to the plausability of an NV40 chip if not card this year. We'll see, though.

Industry rumors are all cool and all that, but none of this information makes a difference until we can actually go on Newegg and purchase one. When is THAT supposed to happen?

Yes, this wasn't intended to be a rumors/scheming thread, though it may have turned into that... I meant only to inform the latest nVidia info.