pc gamer AMD RX 6800 XT runs at almost half the frame rate of Nvidia's RTX 3080 in Vulkan Ray Tracing tests

[ENTERPRISE]

Quote

AMD is just getting started at the whole ray tracing game. The AMD RX 6800 XT marks Team Radeon's very first ray tracing enabled GPU, with the power to render Microsoft DirectX Raytracing (DXR) supporting games, albeit rather slower than the Nvidia competition. But no longer is AMD restricted to Microsoft's ray tracing API as today the Khronos group, a cross-vendor supported consortium of super-smart people, has unleashed its own GPU-agnostic ray tracing extension for Vulkan.

 

Source: https://www.pcgamer.com/uk/amd-rx-6800-xt-vulkan-ray-tracing/

[Andrew]

I hope for AMD users this is a software issue and not a hardware one. I'd have expected the 6800XT to at least come close to the 3080.

[schuck6566]

3 minutes ago, Andrew said:

I hope for AMD users this is a software issue and not a hardware one. I'd have expected the 6800XT to at least come close to the 3080.

The missing Tensor cores will make the difference I believe. "RDNA 2 isn’t as efficient at ray tracing as Nvidia’s second-gen technology, though. Turning on ray tracing drops frame rates by roughly 38 to 45 percent on the Radeon RX 6800-series cards, compared to 28 to 37 percent on the GeForce GPUs." "The biggest missing piece for Radeon? DLSS. Nvidia’s Deep Learning Super Sampling feature uses dedicated tensor cores to upscale games using AI, letting the games render at lower resolutions to increase performance. DLSS 2.0 works like black magic in games that support it, clawing back most or all of the frames lost to ray tracing’s hefty performance impact. The Radeon RX 6800-series lacks an answer to Nvidia’s tensor cores or DLSS." https://www.pcworld.com/article/3597535/amd-radeon-rx-6800-xt-tested-5-key-things.html

[UltraMega]

To be fair tho, both Nvidia and and are performing much worse with Vulkan RT vs DXR. The amd cards are worse sure but neither are performing well.

[ENTERPRISE]

I think some of the performance loss for AMD will be down to 

 

A. New API and optimizations to be had 

B. This is AMD's first pop at RT, as such realistically we know it will not stand up to the Nvidia 3000 series.

[Darkpriest667]

This is AMDs first revision of RT hardware. Compare it to a 2080ti and then resubmit the results. 

[Chiraq]

I don't care. It's too fresh anyway. Give a couple years. The way Nvidia handles their YT reviewers has swayed me to AMD for the next card, looking to support AMD now they are catching up big time. I hope others feels the same way. The cards perform similar across the manufacturers all in all. 

 

2c