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.
On raw speed the Radeon RX 7900 XT comes out dramatically faster — about 85% ahead of the Radeon RX 6800M.
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Comparable or lower specs
Radeon RX 7900 XT vs Radeon RX 6800M: In-Depth Breakdown
Performance: Radeon RX 7900 XT vs Radeon RX 6800M
The Radeon RX 7900 XT is dramatically faster, around 85% ahead of the Radeon RX 6800M. 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 6800M is better matched to 1440p. The Radeon RX 7900 XT packs 5,376 stream processors versus 2,560 on the Radeon RX 6800M.
Power & Efficiency
At 145W against 300W, the Radeon RX 6800M 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 7900 XT carries 20GB versus 12GB on the Radeon RX 6800M. 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 7900 XT's memory is also faster — 800 GB/s versus 384 GB/s (320-bit vs 192-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: Radeon RX 6800M or Radeon RX 7900 XT?
The Radeon RX 7900 XT is the faster card by about 85%. 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 6800M?
Which is better for 4K gaming, the Radeon RX 6800M 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 6800M | Radeon RX 7900 XT |
|---|---|---|
| Architecture | RDNA 2 | RDNA 3 |
| Process Node | TSMC 7nm | TSMC N5 |
| CUDA Cores (Stream Processors / Stream Processors) | 2,560 | 5,376✓ |
| Ray Tracing Cores | 40 | 84✓ |
| Tensor / AI Cores | 80 | 168✓ |
Clock Speeds
| Specification | Radeon RX 6800M | Radeon RX 7900 XT |
|---|---|---|
| Base Clock | 1,975 MHz✓ | 1,500 MHz |
| Boost Clock | 2,300 MHz | 2,400 MHz✓ |
Memory
| Specification | Radeon RX 6800M | Radeon RX 7900 XT |
|---|---|---|
| VRAM Capacity | 12 GB | 20 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 192-bit | 320-bit✓ |
| Memory Speed | 16 Gbps | 20 Gbps✓ |
| Bandwidth | 384 GB/s | 800 GB/s✓ |
Connectivity & Power
| Specification | Radeon RX 6800M | Radeon RX 7900 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 145 W✓ | 300 W |
| Power Connectors | None | 2x 8-pin |
| Released | Jun 2021 | Nov 2022 |
Related Reading
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Modded Skyrim and Starfield at 4K can exceed 18GB of VRAM usage. Discover why the 7900 XT's 20GB buffer is a necessity.
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?