Radeon RX 6800 vs Radeon RX 7900 XT
The Radeon RX 7900 XT is a massive performance leap — leading the Radeon RX 6800 by roughly 61% in our performance index. The Radeon RX 6800, however, delivers more performance per dollar — $404 EUR cheaper.
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Comparable or lower specs
Radeon RX 7900 XT vs Radeon RX 6800: In-Depth Breakdown
Performance: Radeon RX 7900 XT vs Radeon RX 6800
The Radeon RX 7900 XT is dramatically faster, around 61% ahead of the Radeon RX 6800. That gap is enough to move it up a tier: the Radeon RX 7900 XT is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6800 is better matched to 1440p. The Radeon RX 7900 XT packs 5,376 stream processors versus 3,840 on the Radeon RX 6800.
Price & Value
On price, expect to pay $484 EUR for the Radeon RX 6800 versus $888 EUR for the Radeon RX 7900 XT. Despite being slower, the Radeon RX 6800 offers the better performance-per-dollar (~14% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6800 is trading below its $579 EUR MSRP — a genuine deal.
Power & Efficiency
The Radeon RX 6800 pulls less power (250W vs 315W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 7900 XT draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it. Its more modern RDNA 3 architecture on a TSMC N5 process is part of why it does more with each watt.
VRAM & Future-Proofing
With 20GB against 16GB, the Radeon RX 7900 XT has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6800's 16GB can fall short. The Radeon RX 7900 XT's memory is also faster — 800 GB/s versus 512 GB/s (320-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 7900 XT is roughly 2 years newer than the Radeon RX 6800 (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 6800 or Radeon RX 7900 XT?
Choose the Radeon RX 7900 XT if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 6800 stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the Radeon RX 7900 XT better than the Radeon RX 6800?
Which is better for 4K gaming, the Radeon RX 6800 or the Radeon RX 7900 XT?
Is the Radeon RX 7900 XT worth the extra $404 EUR over the Radeon RX 6800?
Does the Radeon RX 7900 XT have enough VRAM advantage to matter?
Which should you buy: Radeon RX 6800 or Radeon RX 7900 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6800 | Radeon RX 7900 XT |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC N7 | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 3,840 | 5,376✓ |
| Ray Tracing Cores | 60 | 84✓ |
| Tensor / AI Cores | — | 168 |
Clock Speeds
| Specification | Radeon RX 6800 | Radeon RX 7900 XT |
|---|---|---|
| Base Clock | 1,700 MHz✓ | 1,500 MHz |
| Boost Clock | 2,105 MHz | 2,400 MHz✓ |
Memory
| Specification | Radeon RX 6800 | Radeon RX 7900 XT |
|---|---|---|
| VRAM Capacity | 16 GB | 20 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit | 320-bit✓ |
| Memory Speed | 16 Gbps | 20 Gbps✓ |
| Bandwidth | 512 GB/s | 800 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6800 | Radeon RX 7900 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 250 W✓ | 315 W |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Released | Nov 2020 | Nov 2022 |
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