In a bid to spice things up in the sub-$200 market segment before the big fall-winter AAA titles hit the block, MSI announced a pair of Gaming Series graphics cards based on the GeForce GTX 660 graphics processor. The two cards are based on a new PCB design for the GK106 silicon; and the same high-performance TwinFrozr IV cooling solution as the one cooling the GeForce GTX 770 Gaming Series. MSI is launching two SKUs of the GTX 660 Gaming Series, one which sticks to NVIDIA reference clock speeds of 980 MHz core, 1033 MHz GPU Boost, and 6.00 GHz memory; and an OC variant, which runs at 1033 MHz core, 1098 MHz GPU Boost, and an unchanged 6.00 GHz memory. Based on the 28 nm GK106 silicon, the GeForce GTX 660 features 960 CUDA cores, 80 TMUs, 24 ROPs, and a 192-bit wide GDDR5 memory interface, holding 2 GB of memory. MSI didn't reveal pricing on the two cards.