ExitLag - There is a world without lags, freezes or loss of data packets. This world is called ExitLag! Get a free trial. Play better who plays with ExitLag!
Open Hardware Monitor - Monitors temperature sensors, fan speeds, voltages, load and clock speeds, with optional graph.
WTFast - Play any online game from anywhere with a smoother connection and lower ping time. wtfast gives your fave games a VIP connection. Free trial available, too.
Guru3D - Guru of 3D: PC Hardware Reviews and tests
Mudfish - Boost your network experience with various WAN Optimization techniques guaranteeing your TCP or UDP connections more robust and faster.
Geforce Experience - GeForce Experience is a new application from NVIDIA that optimizes your PC in two key ways.