You lost me there!!!!!
Quadro cards are Nvidia's line of DCC/CAD cards.....Quadro 4's like the 750,900, and 980's were based off of the Geforce 4 line...The Geforce FX line of 500,700,1000,1100,2000 and 3000 are obviously based off of the NV35 line....
ATI'a CAD cards on the FireGL series with the X2 being based on the vpu of the 9800XT and the X1 being based on the vpu of the 9700pro....
Software optimization are very key in this line of cards but what you need to see is that in most cases when a gaming card and CAD card are basd on the vpu they have identical amount of pipelines...often times the CAD cards are a bit slower core and mem clock speed...The difference is really going o be with multiple windows open and some optimization in drivers....Old line of Geforce4 and older cards I believed had a soft mod you could do to unlock the ability of the card to become a qaudro line available to gain the benefits of the optimised drivers.....
Business computer = go quadro 4 or FX line of CAD cards...
Personal Use/ Workstation at home = go high end gaming card and get more out of it besides te premium cost which according to those benchmarks versus the ti4600 and 9700pro sure don't seem to be worth it...