GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the GeForce RTX 4080 comes out dramatically faster — about 729% ahead of the Radeon RX 6400. But the Radeon RX 6400 is the better value, undercutting it by $6,416 for the performance you get.
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GeForce RTX 4080 vs Radeon RX 6400: In-Depth Breakdown
Performance: GeForce RTX 4080 vs Radeon RX 6400
The GeForce RTX 4080 is dramatically faster, around 729% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the GeForce RTX 4080 is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6400 is better matched to entry-level 1080p.
Price & Value
The Radeon RX 6400 currently lists from $378, $6,416 less than the GeForce RTX 4080 at $6,794. Despite being slower, the Radeon RX 6400 offers the better performance-per-dollar (~117% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6400 still sits about $219 above its $159 MSRP. The GeForce RTX 4080 still sits about $5,595 above its $1,199 MSRP.
Power & Efficiency
On power, the Radeon RX 6400 is the gentler choice at 53W versus 320W. The GeForce RTX 4080 is more efficient per watt because it's faster, but its higher 320W draw means more heat and a bigger PSU.
VRAM & Future-Proofing
The GeForce RTX 4080 carries 16GB versus 4GB on the Radeon RX 6400. The extra 12GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4080 brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6400 offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: GeForce RTX 4080 or Radeon RX 6400?
Choose the GeForce RTX 4080 if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 6400 stretches your money further for only slightly lower performance.