GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
On raw speed the Radeon RX 6900 XT comes out marginally faster — about 5% ahead of the Radeon RX 7800 XT. But the Radeon RX 7800 XT is the better value, undercutting it by $148 GBP for the performance you get.
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Radeon RX 6900 XT vs Radeon RX 7800 XT: In-Depth Breakdown
Performance: Radeon RX 6900 XT vs Radeon RX 7800 XT
The Radeon RX 6900 XT is marginally faster, around 5% ahead of the Radeon RX 7800 XT. That gap is enough to move it up a tier: the Radeon RX 6900 XT is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 7800 XT is better matched to 1440p. The Radeon RX 6900 XT packs 5,120 stream processors versus 3,840 on the Radeon RX 7800 XT.
Price & Value
The Radeon RX 7800 XT currently lists from $552 GBP, $148 GBP less than the Radeon RX 6900 XT at $700 GBP. Despite being slower, the Radeon RX 7800 XT offers the better performance-per-dollar (~21% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6900 XT is trading below its $999 GBP MSRP — a genuine deal.
Power & Efficiency
At 263W against 300W, the Radeon RX 7800 XT is both the lower-power and the more efficient card, making it the easier build to cool and power. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.
Memory & Bandwidth
The Radeon RX 7800 XT's memory is faster — 624 GB/s versus 512 GB/s — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 7800 XT is roughly 3 years newer than the Radeon RX 6900 XT (RDNA 3 vs RDNA 2), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: Radeon RX 7800 XT or Radeon RX 6900 XT?
Choose the Radeon RX 6900 XT if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 7800 XT stretches your money further for only slightly lower performance.