NVIDIA's new card is the GeForce 9800 GTX+ GPU, an overclocked 9800 GTX, but really the 55nm refresh of the G92. NVIDIA increased default clock/shader speeds: from 675MHz to 738MHz and from 1688MHz to 1836MHz respectively. Memory speeds for this card will be 1100MHz, similar to the existing 9800 GTX. The MSRP will be $229, and it will hit store shelves in mid-July.
At the same time the 9800 GTX's price will be dropped to $199, matching AMD's 4850 MSRP.
CPU vs GPU PhysX In UT3
The really good news: PhysX for the GeForce 9800 GTX, 9800 GTX+, and GTX 260/280 cards will be enabled by the ForceWare 177.39 driver, timed to launch with the GTX+. And NVIDIA says it will gradually roll out PhysX support to the full GeForce 8/9 line. As the above graph shows, GPU accelerated PhysX could offer a significant performance increase, in games that support the technology. The UT3 PhysX map pack for example, which was used to gather the data above, shows a major boost with GPU accelerated PhysX enabled.