GeForce 7800 GTX looks to be one of the first G70-baserd cards we can expect from nVidia. As the name implies its a “GT(X)” model which might mean we will see an “Ultra(X)” model later on. On these leaked pictures there are some specifications specified (found below); GeForce 7800 GTXGeForce 7800 GTX seems to be the name we should expect for at least one the cards based on nVidia’s G70-graphic circuits that we’ve been hearing of. The latest couple of days rumours have been going around on nVidia’s next graphic circuit, not the least considering its chip is used in Sony’s gaming console Playstation 3 where, RSX Reality Synthesizer. At NVnews they’ve posted pictures on what seems to be official marketing papers where you can find specifications and information on GeForce 7800 GTX.
Graphic card interface:
PCI Express
Core frequency :
430MHz
Memory interface:
256-bit
Memory bandwidth (GB/s):
38.4
Fill Rate (Billion pixels/s):
10.32
Vertices/s (Millions)
860
Pixlar per cycle (max)
24
RAMDAC (MHz)
400
Specifications reveal that the card has 24 pixel pipelines and it is speculated that these are complemented with another 8-10 vertex shaders. You can compare this with the 16 pixel pipelines and 6 vertex shaders on NV40 (GeForce 6800 Ultra). Despite this the specified fillrate of the 7800 GTX is almost twice the one of 6800 Ultra, 10.32 billion pixels/s compared to 6.4 billion pixels/s. This is probably the result of optimized pixel pipelines. The memory bandwidth on the other hand hasn’t changed much, 38.4 GB/s vs. 35.2 GB/s.
Another interesting detail shown ith documents posted are the support for IntelliSample 4.0. 6800 Ultra supports IntelliSample 3.0 which hopefully means that thye 7800-series will have improved support for edgesmoothening technologies and anisotropic filtering.
The documents posted are not official in any way thus may very well be fake but they do look authentic.
The complete documents can be found at NVnews.net.
