TechPowerUp published a review on the ASRock Radeon RX 580 Phantom Gaming X 8 GB
A quote from the article:
ASRock is the first new player in the GPU market for a long time. We review their AMD-based RX 580 Phantom Gaming X, which is an overclocked custom-design variant. ASRock has optimized their card for low-cost, which matters a lot today, due to prices being inflated by GPU mining.ASRock Radeon RX 580 Phantom Gaming X 8 GB Review
We have with us ASRock's very first graphics card, the Radeon RX 580 Phantom Gaming X 8 GB. When ASRock started operations in the early-2000s, no PC enthusiast took it seriously. It focused on low-cost motherboards made on entry-level chipsets, but over the years, earned a lot of brand equity by targeting the largest segment of the market first. As the company became more independent from ASUSTek, it started directly competing across all market segments and earned respect from PC enthusiasts for coming up with some of the boldest and strangest motherboard designs. The company has since matured into a solid motherboard brand that has products in every price-band.