Radeon RX 6800 vs Radeon RX 7900 XTX
The Radeon RX 7900 XTX is a massive performance leap — leading the Radeon RX 6800 by roughly 81% in our performance index. The Radeon RX 6800, however, delivers more performance per dollar — $559 EUR cheaper.
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Comparable or lower specs
Radeon RX 7900 XTX vs Radeon RX 6800: In-Depth Breakdown
Performance: Radeon RX 7900 XTX vs Radeon RX 6800
The Radeon RX 7900 XTX is dramatically faster, around 81% ahead of the Radeon RX 6800. That gap is enough to move it up a tier: the Radeon RX 7900 XTX is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6800 is better matched to 1440p. The Radeon RX 7900 XTX packs 6,144 stream processors versus 3,840 on the Radeon RX 6800.
Price & Value
On price, expect to pay $540 EUR for the Radeon RX 6800 versus $1,099 EUR for the Radeon RX 7900 XTX. Despite being slower, the Radeon RX 6800 offers the better performance-per-dollar (~13% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6800 is trading below its $579 EUR MSRP — a genuine deal. The Radeon RX 7900 XTX still sits about $100 EUR above its $999 EUR MSRP.
Power & Efficiency
The Radeon RX 6800 pulls less power (250W vs 355W), so it's the easier card to cool and the lighter load on your PSU. The faster Radeon RX 7900 XTX 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 24GB against 16GB, the Radeon RX 7900 XTX 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 XTX's memory is also faster — 960 GB/s versus 512 GB/s (384-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The Radeon RX 7900 XTX 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 XTX?
Choose the Radeon RX 7900 XTX 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 XTX better than the Radeon RX 6800?
Which is better for 4K gaming, the Radeon RX 6800 or the Radeon RX 7900 XTX?
Is the Radeon RX 7900 XTX worth the extra $559 EUR over the Radeon RX 6800?
Does the Radeon RX 7900 XTX have enough VRAM advantage to matter?
Which should you buy: Radeon RX 6800 or Radeon RX 7900 XTX?
Technical Specifications Comparison
Architecture & Cores
| Specification | Radeon RX 6800 | Radeon RX 7900 XTX |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC N7 | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 3,840 | 6,144✓ |
| Ray Tracing Cores | 60 | 96✓ |
| Tensor / AI Cores | — | 192 |
Clock Speeds
| Specification | Radeon RX 6800 | Radeon RX 7900 XTX |
|---|---|---|
| Base Clock | 1,700 MHz | 1,900 MHz✓ |
| Boost Clock | 2,105 MHz | 2,500 MHz✓ |
Memory
| Specification | Radeon RX 6800 | Radeon RX 7900 XTX |
|---|---|---|
| VRAM Capacity | 16 GB | 24 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit | 384-bit✓ |
| Memory Speed | 16 Gbps | 20 Gbps✓ |
| Bandwidth | 512 GB/s | 960 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6800 | Radeon RX 7900 XTX |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 250 W✓ | 355 W |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Released | Nov 2020 | Nov 2022 |
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