When we pop off the cooler, we can see that the GTX 660Ti shares many similarities to the GTX 670's compact PCB that we saw a few months ago.

IMG 2175 Nvidia GeForce GTX 660 Ti Review (Part 1/3)   Gigabytes Windforce OC Edition

Here we have the business end of things – a Kepler GK104 die flanked by eight Hynix GDDR5 memory chips (two behind) clocked at 1.5GHz.

IMG 2187 Nvidia GeForce GTX 660 Ti Review (Part 1/3)   Gigabytes Windforce OC Edition

 

A dumb ON semiconductor NCP5392P buck controller manages 4-phase of power, with ferrite cores and solid capacitors ensuring reliable continous operation.

IMG 2181 Nvidia GeForce GTX 660 Ti Review (Part 1/3)   Gigabytes Windforce OC Edition

IMG 2170 Nvidia GeForce GTX 660 Ti Review (Part 1/3)   Gigabytes Windforce OC Edition

 

The heatsink block itself uses HDT (heatpipe direct touch) to conduct heat away from the GPU core, and there are also sticky thermal tape for the MOSFETs and BGA memory modules. Twin 92mm fans provide a lot of airflow for heat dissipation.

IMG 2203 Nvidia GeForce GTX 660 Ti Review (Part 1/3)   Gigabytes Windforce OC Edition

IMG 2204 Nvidia GeForce GTX 660 Ti Review (Part 1/3)   Gigabytes Windforce OC Edition