GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the Radeon RX 6600 comes out dramatically faster — about 143% ahead of the Radeon RX 6400. It also wins on performance-per-dollar, making it the cleaner choice when you can afford it.
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Radeon RX 6600 vs Radeon RX 6400: In-Depth Breakdown
Performance: Radeon RX 6600 vs Radeon RX 6400
The Radeon RX 6600 is dramatically faster, around 143% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the Radeon RX 6600 is comfortable at 1080p, while the Radeon RX 6400 is better matched to entry-level 1080p.
Price & Value
The Radeon RX 6400 currently lists from $232 USD, $33 USD less than the Radeon RX 6600 at $265 USD. Because it's both faster and competitively priced, the Radeon RX 6600 wins on performance-per-dollar by about 112%. The Radeon RX 6600 is trading below its $330 USD MSRP — a genuine deal.
Power & Efficiency
At 53W against 132W, the Radeon RX 6400 is both the lower-power and the more efficient card, making it the easier build to cool and power.
VRAM & Future-Proofing
The Radeon RX 6600 carries 8GB versus 4GB on the Radeon RX 6400. The extra 4GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Which should you buy: Radeon RX 6600 or Radeon RX 6400?
The Radeon RX 6600 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the Radeon RX 6400 if you find it at a steep discount.