AMD Radeon HD 7690M is a fast middle-class graphics card for laptops introduced in 2011. It is at heart a renamed Radeon HD 6750M with a 100MHz increase in memory clock speed on models sporting DDR3 VRAM. Therefore, the GPU is still built in 40nm with DirectX11 support.
According to AMD, select DDR3 models are available based on the faster clocked Thames-XTX chip. The similarly named Radeon HD 7690M XT is based on the same architectural core as the 7690M, but offers higher clock speeds with GDDR5 memory. In essence, the XT variant is a renamed Radeon HD 6770M.
Taken from another site so not my words. Full link below.
It seems there are a few versions of the same GPU, Some with GDDR5 and some with GDDR3, This might explain why it shows as it does in the programs.
The original driver installed was probably customised by HP to make it show the HD7690M name.