AMD Unveils RDNA 3-Based Radeon RX 7900 XTX and 7900 XT Graphics Cards

Slashdot readers MojoKid and williamyf share the news of AMD's two new high-end graphics cards, the Radeon RX 7900 XTX and 7900 XT. "Priced at $999 and $899 respectively and available in December this year, the new Radeon cards are expected to go toe-to-toe with NVIDIA's GeForce RTX 4080 and 4090," writes MojoKid. HotHardware reports: AMD states that its goals for RDNA 3 are to accelerate performance-per-watt leadership and to raise the bar for high resolution and high framerate gaming. AMD has turned to a chiplet architecture to accomplish these goals, a first for gaming GPUs. The chiplet complexes consist of a 5nm graphics compute die (GCD), which is flanked top and bottom by up to six 6nm memory and cache dice (MCD). The RX 7900 XTX uses the full complement of 6 MCDs which aggregates as a 384-bit memory bus (64-bit per die) with GDDR6 memory offering 20Gbps of throughput. The RX 7900 XT uses 5 MCDs with a corresponding 320-bit bus. All of this increased bandwidth and resources translates to what AMD claims is up to a 1.7X uplift in performance for the Radeon RX 7900 XTX versus its previous gen Radeon RX 6950 XT card in high resolution gaming. This could put the card within striking distance of NVIDIA's GeForce RTX 4090 possibly, but it's hard to say until cards ship to independent reviewers for testing. Regardless, gamers will appreciate the RX 7900 XTX's price point versus NVIDIA's $1600 top-end beast.

Read more of this story at Slashdot.