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Old 03-22-12, 10:02 PM   #99
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Default Re: Official GeForce GTX 680 Review and Discussion thread

Originally Posted by i SPY View Post
Yeah that demo looks nice, cant wait to try it out

.. but only 8 polymorph 2.0 tessellation engines? at least the same 16 would be nice, esp. for that "high-end" price.

//from whitepaper
Originally Posted by Anandtech
Because NVIDIA still only has a single Polymorph Engine per SMX, the number of Polymorph Engines hasnít been doubled like most of the other hardware in an SMX. Instead the capabilities of the Polymorph Engine itself have been doubled, making each Polymorph Engine 2.0 twice as powerful as a GF114 Polymorph Engine. In absolute terms, this means each Polymorph Engine can now spit out a polygon in 2 cycles, versus 4 cycles on GF114, for a total of 4 polygons/clock across GK104.
Throughput is doubled!
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