They all base their article on VideoCardz numbers .. ( same for Guru article yesterday ) ...Originally Posted by Olivon
It is possible... if they was plan to use a GK104 (680 core) with 2 SMX disabled, finally to use a 670core and underclock it.... specially if underclocked + 2SMX disabled was not match or overpass the performance of the competition. It cost them the same . the only thing they will add is disable 64bits on the memory controller.
Its more the gk106 who look a bit strange with 6SMX of 192SP ( if there's 192SP, but for this i base myself on the 960SP of the 650 ... 192SP match but not more )
Why surprising? The difference of performance with 1x SMX disabled in games is really poor, clock a 670 at 680 clock speed ( as many overclocking model are and even further ), and you end with a 670 equal or better in performance of the 680 ... look the Asus DirectCUII 670.. it beat the 680 in absolutely all games by a far margin. In this case why make a GK104 660TI with one more SMX ( cost wise ) . At same clock the card should not deliver a lot of performance in more. A GK106 at 670 clock speed will be 3-4 % slower of the initial GTX670 .. but this remove too the interest of the 660TI with 1344SP cores.
All 192SP / SMX:
GK104 - 680 = 8SMX
GK104 - 670 = 7SMX ( one disabled )
GK104 - 660TI = 7SMX ( one disabled )
GK106 - 660 = 6SMX
GK106 - 650 = 5SMX ( one disabled )
GK107 - 640 = 2SMX
At the moment we have the confirmation of the GTX660 GK106, number of SMX and SP we will be sure of the 660TI SP numbers .
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