Overview
GeForce GTX 780 6GB is a High-End Graphics Card based on the first revision of the Kepler Architecture.

Architecture
The Kepler Architecture was NVIDIA's big step to power efficiency. Each Stream Multiprocessor (SMX) now hosts 192 Shader Processing Units - against the 48 of older Fermi Architecture, and has been redesigned being now clocked at the same speed of the Central Unit. This means they are more energy efficient and will consequently lead to cooler operating temperatures. However, it also means they are weaker. It can be said that one Fermi SMX is as fast as 2 Kepler SMXs.
Additionally, and not available in all GPUs, Kepler also introduced the Boost Clock Feature. The Boost Clock is an even higher Clock Speed activated when in gaming mode and becomes the effective speed of the GPU.

GPU
It equips a GPU Codenamed GK110-301-B1 which has 12 SM activated and thus offers 1664 Shader Processing Units, 192 TMUs and 48 ROPs, on a 384-bit memory interface of fast GDDR5. The central unit runs at 863MHz and goes up to 902MHz.

Memory
The GPU accesses a 6GB frame buffer of fast GDDR5, through a 384-bit memory interface. The size of the frame buffer is somewhat exaggerated. The Memory Clock Operates at 1502MHz.

Features
DirectX 11.2 Support (11.0 Hardware Default) and support for SLI, GameStream, G-SYNC, GPU Boost 2.0, GeForce Experience, PhysX and other technologies.

Power Consumption
With a rated board TDP of 250W, it requires at least a 600W PSU with one available 6-pin and 8-pin connectors.

Performance
Gaming benchmarks prove that at 2560x1600 GeForce GTX 780 6GB is around 10% faster than its original 3GB version.

System Suggestions
We recommend a very strong processor (Intel Core i7 Quad Core/AMD FX Eight Core) and 8GB of RAM for a system with GeForce GTX 780 6GB.