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Print 77 comment(s) - last by skroh.. on Oct 10 at 5:38 PM

More G80 features abound

As if we mere mortals needed more reasons to be excited about G80, here are a couple more tidbits: 128-bit high dynamic-range and antialiasing with 16X sampling.

The high dynamic-range (HDR) engine found in GeForce 7950 and Radeon series graphics cards is technically a 64-bit rendering.  This new HDR approach comes from a file format developed by Industrial Light and Magic (the LucasFilm guys).  In a nutshell, we will have 128-bit floating point HDR as soon as applications adopt code to use it. OpenEXR's features include:
  • Higher dynamic range and color precision than existing 8- and 10-bit image file formats.
  • Support for 16-bit floating-point, 32-bit floating-point, and 32-bit integer pixels. The 16-bit floating-point format, called "half", is compatible with the half data type in NVIDIA's Cg graphics language and is supported natively on their new GeForce FX and Quadro FX 3D graphics solutions.
  • Multiple lossless image compression algorithms. Some of the included codecs can achieve 2:1 lossless compression ratios on images with film grain.
  • Extensibility. New compression codecs and image types can easily be added by extending the C++ classes included in the OpenEXR software distribution. New image attributes (strings, vectors, integers, etc.) can be added to OpenEXR image headers without affecting backward compatibility with existing OpenEXR applications.
NVIDIA already has 16X AA available for SLI applications.  The GeForce 8800 will be the first card to feature 16X AA on a single GPU.  Previous generations of GeForce cards have only been able to support 8X antialiasing in single-card configurations.

This new 16X AA and 128-bit HDR will be part of another new engine, similar in spirit to PureVideo and the Quantum Effects engines also featured on G80.


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RE: Small leap
By Knish on 10/5/2006 12:25:01 PM , Rating: 5
You need to find out who has their search lights plugged into your house and disconnect them. A 500W power supply and two monitors (let's round everything up to 1KW) runs just about $800 *for the year* at $0.10 per KW hour.

And that's at full load, 24 hours a day, 365 days a year.


RE: Small leap
By UNCjigga on 10/5/2006 1:09:34 PM , Rating: 2
Hmm, I wonder how much power a triple-play setup of Xbox 360, PS3 and Wii would consume? Not like you'd be running all 3 at the same time though.

I am completely in awe and blown away at the specs of this chip though. 384-bit memory interface, 768MB of GDDR3 (or 4?), 128 unified shaders with Shader Model 4.0 and DirectXX goodness, etcetera etcetera ad infinitum. And to think this will likely launch (or at least be widely available) BEFORE PS3 even hits store shelves (and cost only a little bit more for GTX.) I guess all the PC gamers win this round??


RE: Small leap
By Pirks on 10/5/06, Rating: -1
RE: Small leap
By Clienthes on 10/5/2006 3:18:09 PM , Rating: 2
I think he meant that the GTX version would be just a bit more expensive than the PS3.


RE: Small leap
By Pirks on 10/5/2006 3:37:03 PM , Rating: 2
my mistake - you're right, I stand corrected. GTX is slightly more expensive than PS3 but there's no Crysis for PS3 - fair enough :)


RE: Small leap
By EclipsedAurora on 10/6/2006 5:28:46 AM , Rating: 2
But still we need to include other PC component cost (RAM, CPU), and he's probably also miss out those hit titles in consoles.


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