The GeForce GTX 660 Ti cards are sorted in alphabetic order in the diagrams and “bracketed” by GeForce GTX 670 and Radeon HD 7950. The test results of the Gigabyte GeForce GTX 670 Ultra Durable 2 are colored green. Red is the color of the Sapphire Radeon HD 7950 Dual-X 3GB while dark-teal is for all the GeForce GTX 660 Ti models, the overclocked Gigabyte GeForce GTX 660 Ti being marked out individually. The amount of onboard memory is only indicated for the KFA2 card for obvious reasons.
Although most of the GeForce GTX 660 Ti cards have comparable clock rates, we can see them differ at the Performance settings. It is not the ASUS or the Zotac which have the highest GPU and memory clock rate, respectively, but the Gigabyte that is ahead. The Gigabyte GeForce GTX 660 Ti Ultra Durable has the highest peak GPU clock rate, which must be the reason why it wins here. The Inno3D is expectedly the slowest of the GTX 660 Ti cards as it has reference frequencies. At the Extreme settings the gaps are smaller, yet the Gigabyte and Zotac are still somewhat faster than the others.
Metro 2033: The Last Refuge
The eight GeForce GTX 660 Ti cards differ by no more than 1 or 2 fps in Metro 2033: The Last Refuge. The Zotac is formally ahead thanks to its pre-overclocked memory. The Radeon HD 7950 beats every GeForce GTX 660 Ti and even the slightly overclocked GTX 670. The extra gigabyte of memory doesn’t provide any benefits for the KFA2.
Total War: Shogun 2
The difference between the GeForce GTX 660 Ti cards is negligible again. They only differ a little when there is no antialiasing. The Inno3D is the slowest again while the Gigabyte and the Zotac are on top. The overclocked GeForce GTX 660 Ti is just as good as the Gigabyte GeForce GTX 670 Ultra Durable and the KDA2 model still has no advantage from its extra memory.
We see the same picture here as in the previous test: