The Inq claims NVIDIA's GeForce 7800 GTX 512MB will be launched on Monday, November 14th. It's said graphics cards based on this chip will be available on launch date, just like the original GeForce 7800 GTX and 7800 GT.
The supposedly cancelled UItra was simply re-named to 7800GTX 512MB. While I personally feel this is a crap name and devalues of this product, I'll leave this to Nvidia's architecture pandits, minions and spinners. This is the 7800Ultra, no matter how it is called now. The price is set at $599 to $649, € or £400 much more expensive than X1800XT, but Nvidia believes it has a reason to keep the price sky-high.
NVIDIA made some changes to the PCB in order to fat Samsung's new 1.1ns GDDR3 memory modules which will be clocked between 1600MHz and 1800MHz. And even then it will still offer high overclockability.
However, the show isn't stopping here - some manufacturers decided to clock the GPU higher and lowered the speed of the memory to keep the board stable in volume production. Of course, if you get a jackpot sample, you can expect GPU core easily surpassing the 600 MHz mark and it will be truly interesting to see how will 16-pipe R520XT cope with "Faster G70 with 512MB" at the same GPU clock speed, as we reported over four months ago.