AMD Radeon RX 7900 XTX Video Card Review

The FPS Review may receive a commission if you purchase something after clicking a link in this article.

AMD Radeon RX 7000 GPU Series and RDNA 3 Architecture

We are now going to post the entire Radeon RX 7000 Series product information and RDNA 3 architecture information for those that would like more details and more of a deep dive into these new GPUs.

The Radeon RX 7000/7900 series improves upon performance per Watt by 54% and 165% more transistors per mm2 with a new interconnect between Chiplets that is 5.3TB/s. You can see specifically what’s new in RDNA 3 architecture below.

The Radeon RX 7900 PCB is made from premium IT-170 material with a 14-layer PCB with 4 layers of 2 oz. copper. It has 20 power-stage phases and low PCIe slot peak currents. It has 24GB of GDDR6 on the 7900 XTX, and the GPU is a Chiplet design. It has HDMI 2.1a, DisplayPort 2.1, and USB Type-C. The shroud is a die-cast aluminum shroud and the backplate is die-cast aluminum as well. It has a 10% larger vapor chamber and uses dispensed GDDR6 thermal interface material, ultra-soft MOSFET thermal interface material, and new GPU thermal interface material. The LED is RGB, and the fans support Zero-RP mode, also unique the fans have intake temperature sensors.

The Radeon RX 7000 series has a new AMD Radiance Display Engine. This supports full REC2020 coverage, 12-bit HDR color support, and of course DisplayPort 2.1 and AVI Encoding/Decoding.

RDNA 3 Architecture

We are going to post the entirety of the RDNA 3 architecture information if you’d like to learn what makes this architecture tick. The notable improvements are naturally moving to a Chiplet design with a GCD and MCDs. The GCD contains the Compute Units, Ray Accelerators, AI accelerators, Stream Processors, and such. The MCDs contains the memory controller, AMD Infinity Cache, and other I/O. In order to facilitate the high bandwidth needed to connect the chiplets AMD had to come up with its new Infinity Links technology, with high-performance fanout links that can provide up to 5.3TB/s of bandwidth across the chiplet interconnect.

RDNA 3 doubles the FP32 units. The Ray Accelerators for Ray Tracing have also been improved with better handling of ray divergence, traversal flags reducing work in the shader core, and enhanced BVH formats and construction reducing overall traversal steps.

AMD is also using the new 2nd Gen Infinity Cache. While the 7900 XTX has 96MB, less than the 128MB in the Radeon RX 6900 series, it is much faster in this new generation. They can get away with less, yet have higher performance. There is 96MB of 2nd Gen Infinity Cache, 6MB of L2 cache, 3MB of L1 cache, and 3MB of L0 cache, all of which is faster than the previous gen.

Join the discussion in our forums...

REVIEW OVERVIEW

Gaming Performance
8
Power Efficiency
8
Build and Cooling
9
Price Value
9

SUMMARY

We reviewed the AMD Radeon RX 7900 XTX video card, and put it up against the competition at 4K, with Ray Tracing and tested FSR performance in many games with a focus on the gameplay experience. The AMD Radeon RX 7900 XTX video card proved to offer a strong value at its price point, offering competitive performance at a lower price point, and all the latest features, including new ones like DisplayPort 2.1 and AV1. It has a robust build, excellent cooling and efficiency, and form factor size that will be compatible with current builds, and doesn't require new power connectors. Its performance is strong but does fall behind the competition's flagship, and Ray Tracing performance, but for the price point being way lower, the value is extremely high on the Radeon RX 7900 XTX by comparison.
Brent Justicehttps://www.thefpsreview.com
Former managing editor of GPUs at HardOCP for 18 years, Brent Justice has been reviewing computer components since the late 90s, educated in the art and method of the computer hardware review, he brings experience, knowledge, and hands-on testing with a gamer-oriented and hardware enthusiast perspective. You can follow him on Twitter - @Brent_Justice You can sub to his YouTube channel - Justice Gaming https://www.youtube.com/c/JusticeGamingChannel You can check out his computer builds on KIT - @BrentJustice https://kit.co/BrentJustice

Recent News

We reviewed the AMD Radeon RX 7900 XTX video card, and put it up against the competition at 4K, with Ray Tracing and tested FSR performance in many games with a focus on the gameplay experience. The AMD Radeon RX 7900 XTX video card proved to offer a strong value at its price point, offering competitive performance at a lower price point, and all the latest features, including new ones like DisplayPort 2.1 and AV1. It has a robust build, excellent cooling and efficiency, and form factor size that will be compatible with current builds, and doesn't require new power connectors. Its performance is strong but does fall behind the competition's flagship, and Ray Tracing performance, but for the price point being way lower, the value is extremely high on the Radeon RX 7900 XTX by comparison.AMD Radeon RX 7900 XTX Video Card Review