GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the Radeon RX 6700 XT comes out dramatically faster — about 271% ahead of the Radeon RX 6400. But the Radeon RX 6400 is the better value, undercutting it by $694 GBP for the performance you get.
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Radeon RX 6700 XT vs Radeon RX 6400: In-Depth Breakdown
Performance: Radeon RX 6700 XT vs Radeon RX 6400
The Radeon RX 6700 XT is dramatically faster, around 271% ahead of the Radeon RX 6400. That gap is enough to move it up a tier: the Radeon RX 6700 XT is comfortable at 1440p, while the Radeon RX 6400 is better matched to entry-level 1080p. The Radeon RX 6700 XT packs 2,560 stream processors versus 768 on the Radeon RX 6400. The Radeon RX 6700 XT also has more RT cores (40 vs 12), strengthening its ray-tracing and AI-upscaling performance.
Price & Value
The Radeon RX 6400 currently lists from $174 GBP, $694 GBP less than the Radeon RX 6700 XT at $869 GBP. Despite being slower, the Radeon RX 6400 offers the better performance-per-dollar (~34% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6700 XT still sits about $390 GBP above its $479 GBP MSRP.
Power & Efficiency
At 53W against 230W, 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 6700 XT carries 12GB versus 4GB on the Radeon RX 6400. The extra 8GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The Radeon RX 6700 XT's memory is also faster — 384 GB/s versus 128 GB/s (192-bit vs 64-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 6700 XT or Radeon RX 6400?
Choose the Radeon RX 6700 XT 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.