GPU Comparison

Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.

Quick Verdict

On raw speed the GeForce RTX 3090 Ti comes out dramatically faster — about 543% ahead of the Radeon RX 6400. But the Radeon RX 6400 is the better value, undercutting it by $1,318 USD for the performance you get.

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VS
AMD
Radeon RX 6400
Price
$232 USD
Perf Index
7%
Value Score
0.030
VRAM4GB GDDR6
Thermal TDP53W
Price
$1,550 USD
Perf Index
45%
Value Score
0.029
VRAM24GB GDDR6
Thermal TDP450W

GeForce RTX 3090 Ti vs Radeon RX 6400: In-Depth Breakdown

Performance: GeForce RTX 3090 Ti vs Radeon RX 6400

The GeForce RTX 3090 Ti is dramatically faster, around 543% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the GeForce RTX 3090 Ti 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 $232 USD, $1,318 USD less than the GeForce RTX 3090 Ti at $1,550 USD. Despite being slower, the Radeon RX 6400 offers the better performance-per-dollar, so budget-focused buyers should weigh it carefully. The GeForce RTX 3090 Ti is trading below its $1,999 USD MSRP — a genuine deal.

Power & Efficiency

At 53W against 450W, 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 GeForce RTX 3090 Ti carries 24GB versus 4GB on the Radeon RX 6400. The extra 20GB 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 Radeon RX 6400 brings AMD FSR upscaling and strong rasterization value, while the GeForce RTX 3090 Ti offers NVIDIA DLSS upscaling/frame generation and stronger ray tracing. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.

Which should you buy: Radeon RX 6400 or GeForce RTX 3090 Ti?

Choose the GeForce RTX 3090 Ti 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.

Frequently Asked Questions

Is the GeForce RTX 3090 Ti better than the Radeon RX 6400?

The GeForce RTX 3090 Ti is dramatically faster, roughly 543% ahead. The Radeon RX 6400 is still worth it if value matters more than top-end frames.

Which is better for 4K gaming, the Radeon RX 6400 or the GeForce RTX 3090 Ti?

The GeForce RTX 3090 Ti is the better 4K option — it's comfortable at 4K with upscaling and native 1440p, and its 24GB of VRAM helps with 4K textures.

Is the GeForce RTX 3090 Ti worth the extra $1,318 USD over the Radeon RX 6400?

Only if you need the extra performance or features; on pure value the Radeon RX 6400 comes out ahead.

Does the GeForce RTX 3090 Ti have enough VRAM advantage to matter?

Its 24GB (vs 4GB) gives real headroom for 4K, heavy texture mods, and creative/AI work. At 1080p the gap matters less.