GPU HEAD-TO-HEAD

AMD Radeon RX 7900 XTX vs AMD Radeon RX 7900 XT

Which graphics card is better for running local language models? Here is how the AMD Radeon RX 7900 XTX (24 GB) compares against the AMD Radeon RX 7900 XT (20 GB) in real memory headroom, supported model architectures, and generation speed.

AMD · RDNA 3 24 GB VRAM

AMD Radeon RX 7900 XTX

  • Memory Bandwidth: 960 GB/s (GDDR6 384-bit)
  • Fits fully in VRAM: 37 popular models
  • Power Draw (TDP): 355W
  • Largest recommended (Q4): 32B–34B
View all AMD Radeon RX 7900 XTX models →
AMD · RDNA 3 20 GB VRAM

AMD Radeon RX 7900 XT

  • Memory Bandwidth: 800 GB/s (GDDR6 320-bit)
  • Fits fully in VRAM: 37 popular models
  • Power Draw (TDP): 315W
  • Largest recommended (Q4): 20B–22B
View all AMD Radeon RX 7900 XT models →

The AI Local Check Verdict: Which GPU should you buy for AI?

The AMD Radeon RX 7900 XTX is the clear winner for local AI. It provides both 4 GB more VRAM and higher memory bandwidth (960 GB/s vs 800 GB/s).

This allows it to run larger model architectures entirely in video memory while also delivering faster token generation speeds on models of all sizes.

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