Radeon R9 280X Sapphire Toxic 3GB OC Edition is a special edition of the high-end Radeon R9 280X. This edition comes with a custom cooling system called "Tri-X", which reduces the card's temperature under load, significantly and comes overclocked out of the box in the central unit that was increased from 850MHz to 1100MHz, while the Boost clock is now of 1150MHz. Also, the operating memory clock is now of 1600MHz. Benchmarks indicate a 6% performance boost over the standard edition and so this card surpasses a GeForce GTX 770 easily.

would this gpu work whit an intel core 2 duo 3ghz, a dc 5800 microtower/hp p70130 motherboard and what psu would i need, i have a 300wattz right now but some sites say i need 1000watzz !? and some say 300watz? ty in advance for reading this