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 6800 XT is available. Benchmarks for other models are currently being processed.
The GeForce RTX 4090 Laptop is noticeably faster than the Radeon RX 6800 XT, leading by roughly 8% in our performance index. The Radeon RX 6800 XT is the cheaper option by $2,964 GBP.
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GeForce RTX 4090 Laptop vs Radeon RX 6800 XT: In-Depth Breakdown
Performance: GeForce RTX 4090 Laptop vs Radeon RX 6800 XT
The GeForce RTX 4090 Laptop is noticeably faster, around 8% ahead of the Radeon RX 6800 XT. Both cards sit in the same broad class, well suited to 1440p.
Price & Value
Right now the Radeon RX 6800 XT starts at $836 GBP against $3,800 GBP for the GeForce RTX 4090 Laptop. The Radeon RX 6800 XT still sits about $187 GBP above its $649 GBP MSRP.
Power & Efficiency
The GeForce RTX 4090 Laptop draws just 150W versus 300W for the Radeon RX 6800 XT, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom. Its more modern Ada Lovelace architecture on a TSMC 4N process is part of why it does more with each watt.
Generation & Longevity
The GeForce RTX 4090 Laptop is roughly 3 years newer than the Radeon RX 6800 XT (Ada Lovelace vs RDNA 2), so it generally benefits from a more modern architecture and longer driver-support runway.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4090 Laptop brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6800 XT offers AMD FSR upscaling and strong rasterization value. If you lean on upscaling or ray tracing, that ecosystem difference can matter as much as the frame-rate gap.
Which should you buy: GeForce RTX 4090 Laptop or Radeon RX 6800 XT?
The GeForce RTX 4090 Laptop is the faster card by about 8%. 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 GeForce RTX 4090 Laptop better than the Radeon RX 6800 XT?
Which is better for 4K gaming, the GeForce RTX 4090 Laptop or the Radeon RX 6800 XT?
Is the GeForce RTX 4090 Laptop worth the extra $2,964 GBP over the Radeon RX 6800 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4090 Laptop | Radeon RX 6800 XT |
|---|---|---|
| Architecture | Ada Lovelace | RDNA 2 |
| Process Node | TSMC 4N | TSMC N7 |
| CUDA Cores (CUDA Cores / Stream Processors) | 9,728✓ | 4,608 |
| Ray Tracing Cores | 76✓ | 72 |
| Tensor / AI Cores | 304 | — |
Clock Speeds
| Specification | GeForce RTX 4090 Laptop | Radeon RX 6800 XT |
|---|---|---|
| Base Clock | 1,455 MHz | 1,825 MHz✓ |
| Boost Clock | 2,040 MHz | 2,250 MHz✓ |
Memory
| Specification | GeForce RTX 4090 Laptop | Radeon RX 6800 XT |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit | 256-bit |
| Memory Speed | 18 Gbps✓ | 16 Gbps |
| Bandwidth | 576 GB/s✓ | 512 GB/s |
Connectivity & Power
| Specification | GeForce RTX 4090 Laptop | Radeon RX 6800 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 150 W✓ | 300 W |
| Power Connectors | None | 2x 8-pin |
| Released | Feb 2023 | Oct 2020 |