EVGA's upcoming GeForce GTX 660Ti Superclocked variant has been listed in China for 2200 CNY or $345 US. In addition to this, ASUS and PNY GTX 660Ti have also been listed for price ranging between $299-$399 depending on reference and factory overclocked designs.
Although the site that listed the card did not mention any details about the clock frequencies but we do know that EVGA's Superclocked variant would feature faster core/boost/memory clock speeds over the reference 915/980/6008Mhz speeds.
The GTX 660Ti features 1344 cores, 2GB GDDR5 memory running along a 192-bit interface and is cooled by a blower type fan design. Display outputs include 2 DVI, 1 HDMI, 1 Display port. EVGA's GTX 660 Ti SC would be available at launch day on 16th August.