GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
The Radeon RX 6600 XT is significantly faster than the Radeon RX Vega 64, leading by roughly 29% in our performance index.
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Radeon RX 6600 XT vs Radeon RX Vega 64: In-Depth Breakdown
Performance: Radeon RX 6600 XT vs Radeon RX Vega 64
The Radeon RX 6600 XT is significantly faster, around 29% ahead of the Radeon RX Vega 64. Both cards sit in the same broad class, well suited to 1080p.
Power & Efficiency
The Radeon RX 6600 XT draws just 160W versus 295W for the Radeon RX Vega 64, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom. Its more modern RDNA 2 architecture on a TSMC N7 process is part of why it does more with each watt.
Memory & Bandwidth
The Radeon RX Vega 64's memory is faster — 484 GB/s versus 256 GB/s (2048-bit vs 128-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 6600 XT is roughly 4 years newer than the Radeon RX Vega 64 (RDNA 2 vs GCN 5.0 (Vega)), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Radeon RX 6600 XT or Radeon RX Vega 64?
The Radeon RX 6600 XT is the faster card by about 29%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.