ASRock blew me away with thermal performance on its new Radeon RX 5600 XT Phantom Gaming D3 6G OC, with the card sitting at 59C during hours of heavy benchmark loads. It's the second-coolest graphics card I've tested in the last few years, second only to the SAPPHIRE RX 5600 XT PULSE OC (with its new BIOS) which is 1C cooler.
Also remember, the card is completely silent when it's not under any load.
The power consumption of all of the custom Radeon RX 5600 XT graphics cards are within 10W of each other, with my entire Intel Core i7-8700K test bed using 190W with the Radeon RX 5600 XT Phantom Gaming D3 6G OC installed.
Note: I spent a considerable amount of time benchmarking the stock BIOS (with the GDDR6 clocked at 12Gbps) and the new BIOS (with the GDDR6 clocked up to 14Gbps). I've included both results in the charts, so you can see out-of-the-box performance and then how the card performs post-BIOS update. I'm only judging the card from the post-BIOS update.
ASRock has what seems to be my favorite Radeon RX 5600 XT yet, with great performance, incredible cooling chops, and a slick but not over-the-top style. The entire package from start to finish is nothing but class -- especially with the new BIOS installed.
The Radeon RX 5600 XT Phantom Gaming D3 6G OC costs around $310, which means it's $10 more than the dual-fan (Phantom Gaming D2) edition (which also has a smaller heat sink) and $20 more than the dual-fan Challenger D model. If you want to see those models reviewed, I can ask ASRock if they'll be kind enough to send them over for an ASRock Radeon RX 5600 XT showdown article.
At the end of the day, I absolutely recommend the Radeon RX 5600 XT Phantom Gaming D3 6G OC.
ASRock quickly came onto the custom Radeon graphics card scene in the cryptocurrency mining boom, and has established itself very quickly as a champion in the arena. I'm actually quite excited about where ASRock is headed, and can't wait to see what they do with RDNA 2 / Navi 2X graphics cards later this year.
The Bottom Line
ASRock kills it with the Radeon RX 5600 XT Phantom Gaming D3 6G OC graphics card. Stellar performance for 1080p and 1440p gamers thanks to faster GDDR6 with a quick BIOS update.