The price drop gives the GeForce GTX 770 a better price/performance ratio than the Radeon R9 285, while also delivering significantly better energy efficiency.
The GTX 770 costs roughly the same as the GTX 760, for NVIDIA to sell, with the former only imposing slightly higher VRM requirements. Our tests show that the GTX 770 still ends up with better energy efficiency figures than the R9 285. Based on the 28 nm "GK104" silicon, the GTX 770 packs 1,536 CUDA cores, 128 TMUs, 32 ROPs, and a 256-bit wide GDDR5 memory interface.