View Full Version : The Illusive Geforce 4 Info

01-24-2002, 07:18 AM
GiMP pulls one off for the team *crowd going nuts*

As we (and not only we) have already told you, in the beginning of February, to be more exact on February 5 in the USA and some time on February 6 in Europe, NVIDIA will launch its new solution for hardcore gamers – GeForce4 chip aka NV25. Today we got the opportunity to tell you a bit more about this new product.
Just like in case of Titanium chips family, the graphics cards makers are most likely to launch several products on NV25 at a time, which will differ by the chip and memory working frequencies as well as by the size of the graphics memory used. We will now touch upon the fastest model of this family, as we believe it deserves most attention and describes all the peculiarities of NV25 architecture.
So, the new NVIDIA graphics chip, just like GeForce3, will be manufactured with 0.15micron technology. However, the number of transistors used in it will reach 63 million, and the working frequency will be increased up to 300MHz. Here the natural question arises: how on earth NVIDIA managed to increase the chip working frequency so greatly without shifting to a new finer manufacturing technology, especially since NV25 should be more architecturally complex than GeForce3? The answer to this question is pretty original: we will see a new packaging in NV25 – PBGA with integrated heatsink. In other words, NVIDIA decided to enhance the heat dissipation process in order to be able to speed up its chips. For the same purpose, NVIDIA will provide its NV25 chips with a special NVIDIA thermal control system.
NVIDIA will increase the memory (DDR SDRAM) working frequency as well, which will work at 650MHz on the fastest solutions. This way the memory bus bandwidth will make 10.4GB/sec. Memory chips used on the graphics cards (at least on those following the reference design) will feature BGA-packaging. NV25 based graphics cards will get up to 128MB DDR SDRAM.
NV25 will feature 4 rendering pipelines with 2 TMUs each. This will make the new chip similar to GeForce3. However, due to higher working frequencies and improved technologies, the fillrate is claimed to equal 4.9 billion AA samples/sec.
Besides significantly higher working frequencies, NV25 will boast some fresh new features and technologies, though it will remain very much like its predecessor, GeForce3. First of all, we have to mention Lightspeed Memory Architecture II, the technology aimed at unloading the memory bus. It includes loss-free Z-buffer compression with 4:1 ratio, 2nd generation Occlusion Culling and Quadcache Architecture, which saves even more memory bandwidth.
Thanks to another significant performance and memory bus efficiency increase, NVIDIA managed to implement a new more progressive anti-aliasing method in its NV25. It is called Accuview AA. This method will use new subpixel locations mask and feature NVIDIA’s patented and optimized for the best performance and quality algorithm.
As for the T&L unit, it has been changed significantly compared with that of GeForce3. Now it is called nFinite FX II and features 2 vertex shader pipelines. Higher clock frequency will triple the performance in those applications, which use the second computing pipeline, making it three times as fast as that of GeForce3. Moreover, increasing the chip frequency will speed up the operations with pixel shaders by 50%.
Besides that, NVIDIA also claims that its new solution will support Z-Correct bump mapping feature, which is still a mystery to all of us. We will not speculate here now, as you will learn everything very soon: on February 5
The performance solutions from NVIDIA have now also got dual-monitor support. NV25 will boast nView technology, the next stage in the TwinView evolution. It will have richer features and will be much easier to use.
Attention! This news story will be soon removed upon NVIDIA’s request

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01-24-2002, 07:32 AM
nice work.. looks good.. pity i've already got a gf3.. won't be upgrading that for a long time.. hell, stuff barely supports the gf3 properly at the moment.. let alone the gf4...

01-24-2002, 07:40 AM
Yeah I bought a Leadtek Geforce 3 as well and I have yet to see anything that even remotely pushes the hardware.

01-24-2002, 07:42 AM
:) soon we'll be seeing the next generation above geforce (like geforce was above TNT)... yet things still won't support the higher level Geforces... all they are good for at the moment is to show off the occasional demo and smoothness... :) not that i'm complaining.. ;)

01-24-2002, 07:46 AM
I don't think that the name "Geforce 4" has been finalized has it? I always heard that the NV25 would have a different name...

01-24-2002, 10:13 AM
I don't think that the name "Geforce 4" has been finalized has it? I always heard that the NV25 would have a different name...

This comes straight from the nVidia Detonator 27.10 drivers (found in the nv4_disp file):

NVidia.Nv17.1 = "NVIDIA GeForce4 MX 460"
NVidia.Nv17.2 = "NVIDIA GeForce4 MX 440"
NVidia.Nv17.3 = "NVIDIA GeForce4 MX 420"
NVidia.Nv17GL.1 = "NVIDIA Quadro4 500XGL"
NVidia.Nv17GL.2 = "NVIDIA Quadro4 200/400NVS"
NVidia.Nv17GL.3 = "NVIDIA Quadro4 550XGL"
NVidia.Nv20 = "NVIDIA GeForce3"
NVidia.Nv20.1 = "NVIDIA GeForce3 Ti 200"
NVidia.Nv20.2 = "NVIDIA GeForce3 Ti 500"
NVidia.Nv20DCC = "NVIDIA Quadro DCC"
NVidia.Nv25.1 = "NVIDIA GeForce4 Ti 4600"
NVidia.Nv25.2 = "NVIDIA GeForce4 Ti 4400"
NVidia.Nv25.4 = "NVIDIA GeForce4 Ti 4200"
NVidia.Nv25GL.1 = "NVIDIA Quadro4 900XGL"
NVidia.Nv25GL.2 = "NVIDIA Quadro4 750XGL"
NVidia.Nv25GL.4 = "NVIDIA Quadro4 700XGL"

01-24-2002, 10:23 AM
I guess Nvidia shouldn't have laid off all of their creative writers after all...

01-24-2002, 07:37 PM
I wonder what kind of price tag this will carry?

01-25-2002, 10:09 PM
Probably not more than the Geforce 3 was when it was released ($549.99 Canadain or so). Once video cards start hitting $600 or more before taxes I think that they'll enter the business market...
I mean in Canada minimum wage is $8/hour at that it would take 75 hours of work to get that kind of money, and minimum wage jobs don't usaly let you work too many strait hours so it would take weeks or months in reality.

01-27-2002, 06:29 AM
I posted a couple of links here http://www.tweaktown.com/news.php?nId=1264 to pics but check them out quick before nVidia finds them and has them pulled again. ;)
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