The GPU and CPU are separate chips, and so typically run at different clocks. 5160 @ 3.0 GHZ is referring to your CPU - the 3.0 GHZ is the clock, and the 5160 is the particular CPU model, likely short for something like Intel Xeon 5160. The 1.19GHZ is the GPU’s clock speed.
Clock speed is pretty much meaningless these days, particularily for GPUs, which achieve their speed by being hundreds of small processors running in parallel on a single chip.