Skip to main content

Digital Trends may earn a commission when you buy through links on our site. Why trust us?

This AMD GPU from 2021 beats the RX 7900 XTX and the RTX 4080

An AMD graphics card that launched in 2021 managed to beat both Nvidia’s RTX 4080 and AMD’s own flagship, the RX 7900 XTX. Surely that would make it one of the best GPUs you could buy right now — unfortunately, it’s much too pricey to be considered worthwhile, and you can’t even use it in a regular PC.

The crazy GPU in question is the AMD Radeon Pro W6800X Duo. Thanks to tests performed by a hardware expert, we were able to see it run far outside of its usual environment. Here’s how it fared.

The AMD Radeon Pro W6800X Duo graphics card.
der8auer/YouTube

AMD’s Radeon Pro W6800X Duo is normally intended to run inside the 2019 Mac Pro. Apple sells it as a separate module, and it costs a hefty amount — a whopping $5,000. Despite these obstacles, we were able to see it run inside a regular PC, all thanks to der8auer. The YouTuber is an extreme overclocking expert, and it’s apparent that he also doesn’t shy away from other challenges, even though they may be quite costly.

First, some quick facts about the Radeon Pro W6800X Duo. The Navi 21-based card is made up of two graphics dies, not just one, and they are connected using AMD’s proprietary Infinity Fabric tech. It’s not exactly two full Navi 21 dies, though, because AMD disabled some compute units (CUs) on each, trimming them down a bit. In addition, each GPU has 32GB of GDDR6 memory and a total of 512GB/s memory bandwidth.

Get your weekly teardown of the tech behind PC gaming
Check your inbox!

The number of displays that the GPU can support is certainly impressive. Apple’s product page tells us that the card can run up to eight 4K monitors, four 5K monitors, or six Pro Display XDRs. And if you want to have not just one, but two Radeon Pro W6800X Duo cards, you can — with an external Infinity Fabric Link connection, two Duo modules can be joined to create a monstrosity that houses a total of four GPUs.

This Insane AMD Dual GPU from 2021 is Faster than a RX 7900 XTX

This powerful GPU was made for workstations and would never end up in a gamer’s hands by accident. It can only run on the 2019 Mac Pro, but der8auer convinced it to run on a standard motherboard and put it through some benchmarks to check out the performance. To make this happen, the overclocker had to perform quite a lot of tweaks.

The standard AMD Adrenalin drivers also presented a problem since the card was not meant to be run outside of an Apple computer. Fortunately, the YouTuber was able to overcome that obstacle by using the Apple Boot Camp driver. Once the GPU was all set to go, der8auer installed it in a system with the Intel Core i9-13900K and 32GB of DDR5-6000 memory.

The benchmark results show that the card is worth the price for those who can make use of it. It proved to be 4% faster than the RTX 4080 and even 8% faster than the RX 7900 XTX, which means that it was able to beat AMD’s current flagship consumer card. However, Nvidia’s RTX 4090 stands undefeated — it still won by 27%.

Monica J. White
Monica is a UK-based freelance writer and self-proclaimed geek. A firm believer in the "PC building is just like expensive…
AMD responds to GPU overheating issues with RX 7900 XTX
RX 7900 XTX installed in a test bench.

As the number of AMD Radeon RX 7900 XTX owners reporting overheating grows, the company has responded. Initially, complaints were met with a simple statement that temperatures of 110 degrees Celsius were normal and not a cause for concern.

That meant requests to return AMD RX 7900 XTX reference graphics cards were denied. While reaching 110 degrees Celsius might be acceptable, thermal throttling is unexpected behavior. AMD is now asking anyone experiencing throttling to contact AMD customer support for assistance. This isn't the first problem with AMD's latest GPU so hopefully, this is taken care of quickly.

Read more
AMD RX 7900 XTX vs. Nvidia RTX 4090: the ultimate flagship GPU battle
RX 7900 XTX lying on a textured background.

AMD's latest Radeon RX 7000-series is Team Red's response to Nvidia's RTX 40-series. For Nvidia, the current reigning leader of the pack is the RTX 4090, an expensive, but immensely powerful GPU. In the case of AMD, we have two cards sitting near the top -- the RX 7900 XT and the RX 7900 XTX. How does AMD's new headliner, the XTX, compete with Nvidia's flagship?

If you're wondering which GPU will reign as the best of the best, you've come to the right place. We've tested both cards extensively and we know the answer.
Pricing and availability

Read more
Our AMD RX 7900 XTX vs. Nvidia RTX 4080 comparison has a clear winner
RX 7900 XTX installed in a test bench.

AMD's long-awaited RX 7900 XTX is here, and given its price, a lot of gamers have a tough decision between the RTX 7900 XTX and Nvidia's RTX 4080. Both are among the best graphics cards you can buy, but one of them is clearly better for most people.

The RX 7900 XTX simply offers a better value, and although the RTX 4080 has better features and ray tracing support, AMD still comes out on top given how much cheaper its GPU is. I'll break down specs, performance, ray tracing, and more here, but make sure to read my RTX 4080 review and RX 7900 XTX review for a complete look at these graphics cards.
Breaking down specs

Read more