Play computer games while having full visibility of your stats!
Display temperatures, voltages, mhz, framerates, directX version, time, and much more!
GOverlay - Display useful information into your DirectX/OpenGL running game, developed by Ezequiel Gonzalez (TheLaGmAn)
requires RTSS

GOverlay Gallery

LCDSysInfo, browse - 12 photos.
3D Overlay, browse - 5 photos.