Comparison of SAPPHIRE Radeon RX 7900 XTX 24GB video card vs SAPPHIRE Radeon RX 7900 XTX 24GB video card by specifications and benchmarks. SAPPHIRE Radeon RX 7900 XTX 24GB runs at 1.900 GHz base clock speed and has 24 GB of GDDR6 memory, while video card SAPPHIRE Radeon RX 7900 XTX 24GB runs at 1.900 GHz base clock speed and has 24 GB of GDDR6 memory. The TDP of the first video card is 346 W-3 %, and the second is 346 W-3 %. Compare the table of benchmark results to find out which graphic card is better.