Graphics Cards Guide
3DMark 11 & Unigine 2.1 "Heaven" Results
3DMark 11 Results
3DMark 11 is a synthetic benchmark designed to test a GPU's performance at various aspects of DirectX 11 such as tessellation and DirectCompute.
The GTX 660 Ti performed well, easily outgunning AMD's competing Radeon HD 7870, and even beating the higher-end HD 7950. Against NVIDIA's GTX 670, it was behind by only 4%, which is quite impressive.
The previous generation GTX 560 Ti was no match for the GTX 660 Ti, with the 660 Ti outperforming it by a massive 72% at the Extreme preset, Even the GTX 580, NVIDIA's previous flagship GPU was unable to keep up, falling behind by 26% at Extreme.
If we take a look at GPU Boost performance, we can see that the reference GTX 660 Ti was able to achieve a maximum boosted clockspeed of 1058MHz, an impressive 15.6% better than the default clock speed, which explains its solid performance.
Among the custom cards, surprisingly, it was Gigabyte that performed best, showing a 7% performance increase on the reference design. This was despite ASUS having higher default clock speeds. If we examine each card's individual GPU Boost charts, we can see that Gigabyte was able to achieve a maximum boosted clockspeed of 1215MHz, whereas ASUS maxed out at 1202MHz, thus explaining its higher scores. It's likely that Gigabyte has set a higher maximum voltage control on its card, which gives it more overhead and allows for the higher boost speeds. This increase in results from Gigabyte continues on for almost all of our tests, so we'll not be showcasing the monitoring graphs on other pages other than the reference card to check out its standard boost clock in our various tests for this new SKU.
Unigine 2.1 "Heaven" Results
The GTX 660 Ti was not as impressive in the synthetic Unigine 2.1 "Heaven" benchmark, falling behind the GTX 670 by approximately 40%. However, it still outperformed both its rival from AMD, the HD 7870, as well as the higher-end HD 7950.
Against the previous generation GTX 560 Ti, the GTX 660 Ti again performed well, although the performance gain was not quite as substantial this time. Note that the GTX 560 Ti vastly underperformed at the 2560x1600 pixel resolution due to a lack of VRAM (1GB GDDR5 versus 2GB GDDR5 for the rest of the cards).
The custom cards again showed a roughly 7-9% performance increase against the reference card, with Gigabyte slightly outperforming both ASUS and Palit again.