How dare you allege that physics can be done on the CPU, thereby, defying nvidias fullproof (retarded) plan of forcing their standard to run only on their cards, even though it works perfectly on cpu!
Cool story.
PhysX uses both GPU and CPU...and pretty much always has done....if it didn't (as example), why would the 3.0 SDK include
multithreaded CPU support?
As for the whole she-done-me-wrong wailing, some of us remember the posturing from both sides:
June 2006:
ATI start posturing against Ageia
September 2007: Intel cuts AMD off at the knees by
acquiring Havok
November 2007: AMD look into
acquiring Ageia
Three months later
Nvidia acquires Ageia
June 2008:
AMD bigs up Havok FX (Number of Havok FX games produced :
0 )
Around the same time,
Nvidia offered PhysX licence to AMD. AMD not interested and
immediately begin a public thrashdown of PhysX via messrs Huddy, Cheng and Robison while promoting OpenCL Havok FX. Nvidia reply by locking AMD/ATi out of PhysX...
AMD reply by telling world+dog that PhysX is irrelevant.
Personally, I'd say that having watched the whole thing unfolding its a case of handbags at ten paces. AMD dithering twice on entering the GPU physics market and losing out...twice, then coming on strong with the "we didn't want it anyway" gambit, Nvidia playing hardball in response to trash talk. Neither of the companies covers themselves in glory, but strangely enough, a whole bunch of people forgetting that the bitch-slapping involved both camps.
From the timelines, this must have been the case. There is no way, short of an educated guess, that AMD would have expected Nvidia to pare down GK104 with respect to compute- especially given Nvidia's previous GPUs since G80. Having said that, I doubt that AMD wouldn't capitalize on the fact now that they are aware of it. From this PoV, Titan's entry into the market makes a convenient backstop (for Nvidia) should AMD look to code endless compute loops into future titles. It might have crippled the performance of pre-GK110 Nvidia (and VLIW4/5 AMD) at the expense of GCN, but Titan's appearance would probably convince AMD that massive compute additions might not be the PR boon they could have been.