GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the Radeon RX 6400 comes out noticeably faster — about 17% ahead of the Radeon R9 380.
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Radeon RX 6400 vs Radeon R9 380: In-Depth Breakdown
Performance: Radeon RX 6400 vs Radeon R9 380
The Radeon RX 6400 is noticeably faster, around 17% ahead of the Radeon R9 380. Both cards sit in the same broad class, well suited to entry-level 1080p.
Power & Efficiency
At 53W against 190W, the Radeon RX 6400 is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern RDNA 2 architecture on a TSMC N6 process is part of why it does more with each watt.
VRAM & Future-Proofing
The Radeon RX 6400 carries 4GB versus 2GB on the Radeon R9 380. The extra 2GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The Radeon R9 380's memory is also faster — 176 GB/s versus 128 GB/s (256-bit vs 64-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 6400 is roughly 7 years newer than the Radeon R9 380 (RDNA 2 vs GCN 3.0), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Radeon RX 6400 or Radeon R9 380?
The Radeon RX 6400 is the faster card by about 17%. 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.