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 6900 XT is available. Benchmarks for other models are currently being processed.
The Radeon RX 6900 XT is significantly faster than the GeForce RTX 4080 Laptop, leading by roughly 21% in our performance index. The Radeon RX 6900 XT is the cheaper option by $1,399 GBP.
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Radeon RX 6900 XT vs GeForce RTX 4080 Laptop: In-Depth Breakdown
Performance: Radeon RX 6900 XT vs GeForce RTX 4080 Laptop
The Radeon RX 6900 XT is significantly faster, around 21% ahead of the GeForce RTX 4080 Laptop. Both cards sit in the same broad class, well suited to 1440p.
Price & Value
Right now the Radeon RX 6900 XT starts at $700 GBP against $2,099 GBP for the GeForce RTX 4080 Laptop. The Radeon RX 6900 XT is trading below its $999 GBP MSRP — a genuine deal.
Power & Efficiency
The GeForce RTX 4080 Laptop draws just 150W versus 300W for the Radeon RX 6900 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.
VRAM & Future-Proofing
With 16GB against 12GB, the Radeon RX 6900 XT has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 4080 Laptop's 12GB can fall short.
Generation & Longevity
The GeForce RTX 4080 Laptop is roughly 3 years newer than the Radeon RX 6900 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 4080 Laptop brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6900 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 4080 Laptop or Radeon RX 6900 XT?
The Radeon RX 6900 XT is the faster card by about 21%. 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 6900 XT better than the GeForce RTX 4080 Laptop?
Which is better for 4K gaming, the GeForce RTX 4080 Laptop or the Radeon RX 6900 XT?
Is the GeForce RTX 4080 Laptop worth the extra $1,399 GBP over the Radeon RX 6900 XT?
Does the Radeon RX 6900 XT have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4080 Laptop | Radeon RX 6900 XT |
|---|---|---|
| Architecture | Ada Lovelace | RDNA 2 |
| Process Node | TSMC 4N | TSMC N7 |
| CUDA Cores (CUDA Cores / Stream Processors) | 7,424✓ | 5,120 |
| Ray Tracing Cores | 58 | 80✓ |
| Tensor / AI Cores | 232 | — |
Clock Speeds
| Specification | GeForce RTX 4080 Laptop | Radeon RX 6900 XT |
|---|---|---|
| Base Clock | 1,350 MHz | 1,825 MHz✓ |
| Boost Clock | 2,280 MHz✓ | 2,250 MHz |
Memory
| Specification | GeForce RTX 4080 Laptop | Radeon RX 6900 XT |
|---|---|---|
| VRAM Capacity | 12 GB | 16 GB✓ |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 192-bit | 256-bit✓ |
| Memory Speed | 18 Gbps✓ | 16 Gbps |
| Bandwidth | 432 GB/s | 512 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 4080 Laptop | Radeon RX 6900 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 150 W✓ | 300 W |
| Power Connectors | None | 2x 8-pin |
| Released | Feb 2023 | Dec 2020 |