As always, we start with 3DMark 11, our trusty synthetic benchmark designed to test a GPU's performance at various aspects of DirectX 11 such as tessellation and DirectCompute.
The GTX 650 Ti Boost immediately showed a huge improvement over the original GTX 650 Ti, outscoring it by about 20% on the Performance Preset and by 30% on Extreme. At both presets, it trailed the GTX 660 by about 16%.
Compared to the ASUS Radeon HD 7790, surprisingly it trailed by about 5% at the Performance Preset, but was able to outscore it by about 13% at Extreme. Impressively it also outscored the higher-end Radeon HD 7850 by 6% on Extreme.
If we look at the GPU Boost chart, you can see that the 650 Ti Boost achieved a maximum boosted core clock speed of 1071MHz, an impressive 91MHz higher than its default clock speed.
3DMark (2013)'s Fire Strike benchmark is Futuremark's most ambitious and technical benchmark to date utilizing a grueling two-part test with extreme levels of tessellation and volumetric illumination, as well as complex smoke simulation using compute shaders and dynamic particle illumination, while Fire Strike Extreme ramps up the difficulty with more tessellation, more particle effects and more taxing DirectCompute calculations.
The GTX 650 Ti Boost was again impressive, vastly outscoring the GTX 650 Ti while trailing the GTX 660 by only 11% on both Fire Strike and Fire Strike Extreme.
Against AMD, the 650 Ti Boost achieved similar scores to the HD 7790 on Fire Strike, but managed to outscore it at the more intensive Fire Strike Extreme (obviously due to the the 1GB graphics memory on the HD 7790). However, it lost to the HD 7850 on both tests.