AMD's mid-range RDNA 3 GPU is reportedly as fast, or faster, than an RX 6900 XT

AMD has reportedly boosted its ray tracing performance significantly

AMD's mid-range RDNA 3 GPU is reportedly as fast, or faster, than an RX 6900 XT

AMD's Navi 33 graphics card is said to outperform Radeon's current flagship

If today's rumours are to be believed, AMD has something very special on the horizon with their RDNA 3 GPU architecture. That said, as always, take these rumours with some salt. 

According to Moore's Law is Dead, AMD's RDNA 3 based Navi 33 GPU design will offer PC gamers similar performance to a Radeon RX 6900 XT in rasterisation workloads, which is a big feat given the fact that AMD also has stronger Navi 32 and Navi 31 designs. AMD's Radeon RX 6900 XT is currently AMD's strongest graphics card, and Navi 33 is said to be the GPU design behind AMD's Radeon RX 7700 XT.

These performance estimates suggest that AMD's RDNA 3 graphics architecture contains some major improvements over today's RDNA 2 based graphics cards. When it comes to architectural changes with RDNA 3, AMD has reportedly made some major advancements in terms of their ray tracing performance, with AMD's Navi 33 RX 7700 XT delivering more performance than AMD's RX 6900 XT.

AMD's Radeon RX 7700 XT reportedly deliver greater performance than a Radeon RX 6900 XT at 1080p, similar performance levels at 1440p and slightly lower levels of performance at 4K in rasterisation workloads. With this performance profile and a reported 128-bit memory bus and a 8GB frame buffer, AMD is reportedly targeting aggressive pricing with their Radeon RX 7700 XT and marketing this graphics card at 1440p resolutions.

AMD's mid-range RDNA 3 GPU is reportedly as fast, or faster, than an RX 6900 XT

With RDNA 3 AMD's once again targeting power efficiency

Like RDNA and RDNA 2, AMD's apparent focus with RDNA 3 is power efficiency. Simply put, delivering more performance per watt allows AMD to achieve higher performance levels at any given power budget. This has obvious benefits for the mobile GPU market, but the benefits do not end there.

Having more efficient graphics cards allows AMD to deliver higher performance levels without the need for larger GPU coolers/heatsinks, or more robust power circuitry. It also allows PC builders to utilise more powerful GPU designs without needing to invest in a higher wattage power supply. Having a more power efficient graphics architecture allows GPU makers to make their GPUs cheaper to build for a given performance category, as less investment needs to go into heatsink design, power circuitry and their associated component/material costs.

The obvious way for AMD to increase their power efficiency is to revamp their ray tracing architecture. Improving AMD's RT accelerators allows AMD to achieve higher performance levels in applicable workloads, and therefore deliver more performance at any given power envelope. That said, this only helps in RT workloads. If AMD's RX 7700 XT is going head-to-head with AMD's RX 6900 XT, AMD must have made several changes that increases AMD's power efficiency in standard rasterised workloads. 

AMD's mid-range RDNA 3 GPU is reportedly as fast, or faster, than an RX 6900 XT

What should we expect from RDNA 3?

AMD's RDNA and RDNA 2 architectures are the backbone of the Xbox Series X, Xbox Series S, PlayStation 5, and Steam Deck. With RDNA 3, AMD has had the opportunity to learn from these designs and work on further architectural enhancements. AMD should have a good idea of what future gaming workloads will look like, both by looking at the development of Unreal Engine 5 and hearing back from the early users of next-generation console hardware. They have also had plenty of time to react to Nvidia's RTX graphics architectures, and plan accordingly. We expect a larger focus on ray tracing with RDNA 3, and a little more focus on content creation and streaming workloads.

If today's rumours contain legitimate information, AMD has something special on the Horizon with their RDNA 3 architecture. This is especially true if AMD has managed to make multi-chip graphics cards work on the high-end. 

You can join the discussion on AMD's Radeon RX 7700 XT matching or beating their RX 6900 XT on the OC3D Forums.

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Most Recent Comments

11-04-2022, 21:03:07

Moore's Law Is Dead said these could also possibly be the 7600XT cards while Navi 32 could be the 7700XT. I know Navi 31 seems to be a 6900XT replacement in part and is quite different than Navi 32, but a cutdown variety could be the 7800XT like it is with RDNA2. Or alternatively Navi 32 could be 7800XT while a cutdown variant of it could be the 7700XT.Quote

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