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AMD has officially unveiled the flagship gaming graphics cards Radeon RX 7900 XTX and Radeon RX 7900 XT, built on the latest RDNA 3 graphics architecture. The company claims that these are the world’s first graphics cards with a chiplet design. Ryzen processors have been using this approach for a long time, and it has fully justified itself.
The main GPU die (GCD) is manufactured in TSMC’s 5nm process, while the cache (MCD) uses the more affordable 6nm process. The GCD includes traditional render pipeline components such as FP32 and ROP shaders, while the MCD is responsible for Infinity Cache and the GDDR6 memory controller.
Note that both video cards are equipped with classic 8-pin PCIe power connectors. This means that you don’t have to buy a new power supply or use 12VHPWR adapters, as is the case with NVIDIA graphics cards.
Radeon RX 7900 XTX
The Radeon RX 7900 XTX received a graphics processor with 96 computing units (CU), operating at a clock frequency of up to 2.3 GHz, as well as 24 GB of GDDR6 memory with a 384-bit bus. Power consumption of new items is 355 watts. AMD claims up to 1.7x performance gains in traditional raster workloads, and up to 1.8x performance gains in ray tracing workloads, compared to the Radeon RX 6950 XT.
The Radeon RX 7900 XTX will go on sale December 12 for $999.
Radeon RX 7900XT
The Radeon RX 7900 XT is equipped with a GPU with 84 compute units and 20 GB of GDDR6 memory with a 320-bit bus. The declared clock frequency of the chip is 2 GHz. Power consumption – 300 watts. On paper, the difference between the Radeon RX 7900 XT and the Radeon RX 7900 XTX is about 24%, but in real conditions this figure may be different.
The Radeon RX 7900 XT will also go on sale on December 12 for $899.
