Nvidia Kepler GK-104:

Product name (top solution): GeForce GTX 680/780 (Not official)
28nm production at TSMC, the area approximately 340mm ² (Details)
4 Graphics Processing Cluster (GPC)
4 Streaming Multiprocessors (SM) aka shader clusters per GPC, total of 16 shader clusters for GK104-chip
96 stream processors (SP) aka shader shader units per cluster, total of 1536 shader units for GK104-chip
8 texture units (TMU) aka shader texture units per cluster, total of 128 units of textures for GK104-chip
32 raster operation units (ROPs)
256-bit DDR memory interface (up to GDDR5)
Core Clock (GTX680): 905-950 MHz
Elimination of Hotclocks, no extra clock speed of the shader units more
Single-precision arithmetic performance 2.9 teraflops , double precision with 1:6 = 486 DP GFlops processing power, 121 Texture Rate Gtex/sec
Memory clock (GTX680): 2500 MHz, Memory bandwidth so that at 160 GB/sec
2048 MB of GDDR5 memory configuration
Source: wccftech.com/alleged-nvidia-kepler-gk104-specs-exposed-gpu-feature-1536-cuda-cores-hotclocks-variants/