PowerColor Launches GDDR4 HD 3870 X2Press Releases · Author Dimitar Dinchev a.k.a. Veseliq · March 5, 2008 · 2064 reads · ★★★★★ (1 votes) TUL Corporation today announced that it is introducing a high-end graphics solution, PowerColor HD 3870 X2 with Samsung GDDR4 memory that is designed to bring incredible performance and life-like graphics to all gamers.