GeForce RTX 3080 12GB vs Radeon RX 6600 XT
Performance-wise the GeForce RTX 3080 12GB is out front, dramatically faster, roughly 106% up on the Radeon RX 6600 XT. Value tips toward the Radeon RX 6600 XT, though: $799 GBP cheaper for what you get.
Maximum Capacity Reached. Remove a model to add another. (2/2)
GeForce RTX 3080 12GB vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: GeForce RTX 3080 12GB vs Radeon RX 6600 XT
The GeForce RTX 3080 12GB is dramatically faster, around 106% ahead of the Radeon RX 6600 XT. That gap is enough to move it up a tier: the GeForce RTX 3080 12GB is comfortable at 1440p, while the Radeon RX 6600 XT is better matched to 1080p.
Price & Value
Right now the Radeon RX 6600 XT starts at $271 GBP against $1,070 GBP for the GeForce RTX 3080 12GB. Despite being slower, the Radeon RX 6600 XT offers the better performance-per-dollar (~92% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6600 XT is trading below its $379 GBP MSRP — a genuine deal. The GeForce RTX 3080 12GB still sits about $271 GBP above its $799 GBP MSRP.
Power & Efficiency
The Radeon RX 6600 XT sips power at 160W next to the GeForce RTX 3080 12GB's 350W, and still leads on performance-per-watt — quieter, cooler, and gentler on your PSU.
VRAM & Future-Proofing
The GeForce RTX 3080 12GB's 12GB (vs 8GB on the Radeon RX 6600 XT) gives it more room for 4K textures and memory-hungry creative or AI workloads.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 3080 12GB brings NVIDIA DLSS upscaling/frame generation and stronger ray tracing, while the Radeon RX 6600 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 3080 12GB or Radeon RX 6600 XT?
Choose the GeForce RTX 3080 12GB if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 6600 XT stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 3080 12GB better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the GeForce RTX 3080 12GB or the Radeon RX 6600 XT?
Is the GeForce RTX 3080 12GB worth the extra $799 GBP over the Radeon RX 6600 XT?
Does the GeForce RTX 3080 12GB have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 3080 12GB or Radeon RX 6600 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3080 12GB | Radeon RX 6600 XT |
|---|---|---|
| Architecture | Ampere | RDNA 2 |
| Process Node | Samsung 8nm | TSMC N7 |
| CUDA Cores (CUDA Cores / Stream Processors) | 8,960✓ | 2,048 |
| Ray Tracing Cores | — | 32 |
Clock Speeds
| Specification | GeForce RTX 3080 12GB | Radeon RX 6600 XT |
|---|---|---|
| Base Clock | 1,440 MHz | 1,968 MHz✓ |
| Boost Clock | 1,710 MHz | 2,589 MHz✓ |
Memory
| Specification | GeForce RTX 3080 12GB | Radeon RX 6600 XT |
|---|---|---|
| VRAM Capacity | 12 GB✓ | 8 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 384-bit✓ | 128-bit |
| Memory Speed | 19 Gbps✓ | 16 Gbps |
| Bandwidth | 912 GB/s✓ | 256 GB/s |
Connectivity & Power
| Specification | GeForce RTX 3080 12GB | Radeon RX 6600 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| TDP | 350 W | 160 W✓ |
| Power Connectors | 2x 8-pin | 1x 8-pin |
| Released | Jan 2022 | Jul 2021 |