GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The Radeon RX 7900 XTX is dramatically faster than the Radeon RX 6600, leading by roughly 273% in our performance index. The Radeon RX 6600, however, delivers more performance per dollar — $1,500 CAD cheaper.
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Radeon RX 7900 XTX vs Radeon RX 6600: In-Depth Breakdown
Performance: Radeon RX 7900 XTX vs Radeon RX 6600
The Radeon RX 7900 XTX is dramatically faster, around 273% ahead of the Radeon RX 6600. That gap is enough to move it up a tier: the Radeon RX 7900 XTX is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6600 is better matched to 1080p. The Radeon RX 7900 XTX packs 6,144 stream processors versus 1,792 on the Radeon RX 6600.
Price & Value
Right now the Radeon RX 6600 starts at $360 CAD against $1,860 CAD for the Radeon RX 7900 XTX. Despite being slower, the Radeon RX 6600 offers the better performance-per-dollar (~38% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 7900 XTX still sits about $861 CAD above its $999 CAD MSRP.
Power & Efficiency
The Radeon RX 6600 pulls less power (132W vs 355W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 7900 XTX draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
With 24GB against 8GB, the Radeon RX 7900 XTX has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6600's 8GB can fall short. The Radeon RX 7900 XTX's memory is also faster — 960 GB/s versus 224 GB/s (384-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 6600 or Radeon RX 7900 XTX?
Choose the Radeon RX 7900 XTX if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 6600 stretches your money further for only slightly lower performance.