The new RDNA3 graphics architecture releases today, and leading from the top are the new Radeon RX 7900 XT (in this review), and the RX 7900 XTX flagship, which we’ve also reviewed today. Both these graphics cards are designed to take the fight to NVIDIA’s high-end: the GeForce RTX 40-series “Ada,” but at highly competitive prices. The RX 7900 XT from this review targets a slightly lower price-point than the RX 7900 XTX flagship, while being designed for the exact same class of gaming—4K Ultra HD maxed out with ray tracing.
The “Navi 31” silicon on which the RX 7900 series is based, features six of these, and hence has a 384-bit wide memory interface. Five of these are enabled on the RX 7900 XT, hence it ends up with a 320-bit memory interface. Each MCD has a 16 MB piece of the GPU’s 96 MB Infinity Cache, the RX 7900 XT gets 80 MB of it.
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