Differenze chiave

• VRAM is the headline: 8GB on the XFX vs 24GB on the Sapphire. Modern AAA titles at 1440p already eat past 8GB, and 4K absolutely requires more. The Sapphire's 384-bit memory bus and 960 GB/s bandwidth crush the XFX's 128-bit bus and 322 GB/s.
• Raw compute is not close. The Sapphire has 6144 stream processors vs 2048, 192 tensor cores vs 64, and 96 RT cores vs 32. FP32 throughput is 61.4 TFLOPS vs 25.6. That's the difference between 'runs the game' and 'runs the game at 4K ultra with headroom.'
• 4K gaming score: 91 for the Sapphire vs 35 for the XFX. Even at 1440p it's 90 vs 51. The XFX only manages a 58 at 1080p, which tells you it's a budget card stretched thin.
• Real-world sentiment backs the Sapphire hard. 688 reviews at 4.4/5 with owners consistently praising 4K performance, quiet operation, and cool temps. The XFX has 6 reviews at 4.0/5, so you're buying with a lot less community feedback.
• The one spec the XFX wins is boost clock: 3320 MHz vs 2680 MHz. That's a higher clock on a much smaller chip, which is like redlining a Civic to keep up with a Corvette. It doesn't translate to real performance.