GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for Radeon RX 7900 XT is available. Benchmarks for other models are currently being processed.
The Radeon RX 7900 XT is dramatically faster than the Radeon RX 6800, leading by roughly 61% in our performance index.
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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.
Power & Efficiency
The Radeon RX 6800 pulls less power (250W vs 300W), 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?
The Radeon RX 7900 XT is the faster card by about 61%. 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.
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?
Does the Radeon RX 7900 XT have enough VRAM advantage to matter?
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✓ | 300 W |
| Power Connectors | 2x 8-pin | 2x 8-pin |
| Released | Nov 2020 | Nov 2022 |
Related Reading
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The 20GB Value King: AMD Radeon RX 7900 XT Review
With its massive 20GB VRAM and aggressive price cuts, the Radeon RX 7900 XT is a high-end 4K contender that refuses to age. Is it still worth it today?