BIG Byte It World Pvt. Ltd. - The ASRock Radeon RX 5700 XT Challenger Pro 8G OC comes with base and boost clock speeds of 1,650MHz and 1,795MHz (up to 1,905MHz) respectively.
ASRock Launches the Radeon RX 5700 XT Challenger Pro 8G OC Graphics Card - VideoCardz.com