GeForce RTX 3090 Ti vs Radeon RX 6800 XT
Performance-wise the GeForce RTX 3090 Ti is out front, significantly faster, roughly 19% up on the Radeon RX 6800 XT. Value tips toward the Radeon RX 6800 XT, though: $2,715 AUD cheaper for what you get.
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GeForce RTX 3090 Ti vs Radeon RX 6800 XT: In-Depth Breakdown
Performance: GeForce RTX 3090 Ti vs Radeon RX 6800 XT
The GeForce RTX 3090 Ti is significantly faster, around 19% ahead of the Radeon RX 6800 XT. That gap is enough to move it up a tier: the GeForce RTX 3090 Ti is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6800 XT is better matched to 1440p.
Price & Value
Right now the Radeon RX 6800 XT starts at $1,783 AUD against $4,498 AUD for the GeForce RTX 3090 Ti. Despite being slower, the Radeon RX 6800 XT offers the better performance-per-dollar (~112% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6800 XT still sits about $1,134 AUD above its $649 AUD MSRP. The GeForce RTX 3090 Ti still sits about $2,499 AUD above its $1,999 AUD MSRP.
Power & Efficiency
The Radeon RX 6800 XT sips power at 300W next to the GeForce RTX 3090 Ti's 450W, and still leads on performance-per-watt — quieter, cooler, and gentler on your PSU.
VRAM & Future-Proofing
The GeForce RTX 3090 Ti's 24GB (vs 16GB on the Radeon RX 6800 XT) gives it more room for 4K textures and memory-hungry creative or AI workloads.
Generation & Longevity
The GeForce RTX 3090 Ti is roughly 2 years newer than the Radeon RX 6800 XT (Ampere 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 3090 Ti 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 3090 Ti or Radeon RX 6800 XT?
Choose the GeForce RTX 3090 Ti if you want the most performance and can absorb the higher price. If you're optimizing for value, the Radeon RX 6800 XT stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 3090 Ti better than the Radeon RX 6800 XT?
Which is better for 4K gaming, the GeForce RTX 3090 Ti or the Radeon RX 6800 XT?
Is the GeForce RTX 3090 Ti worth the extra $2,715 AUD over the Radeon RX 6800 XT?
Does the GeForce RTX 3090 Ti have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 3090 Ti or Radeon RX 6800 XT?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3090 Ti | Radeon RX 6800 XT |
|---|---|---|
| Architecture | Ampere | RDNA 2 |
| Process Node | Samsung 8nm | TSMC N7 |
| CUDA Cores (CUDA Cores / Stream Processors) | 10,752✓ | 4,608 |
| Ray Tracing Cores | 84✓ | 72 |
| Tensor / AI Cores | 336 | — |
Clock Speeds
| Specification | GeForce RTX 3090 Ti | Radeon RX 6800 XT |
|---|---|---|
| Base Clock | 1,560 MHz | 1,825 MHz✓ |
| Boost Clock | 1,860 MHz | 2,250 MHz✓ |
Memory
| Specification | GeForce RTX 3090 Ti | Radeon RX 6800 XT |
|---|---|---|
| VRAM Capacity | 24 GB✓ | 16 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 384-bit✓ | 256-bit |
| Memory Speed | 21 Gbps✓ | 16 Gbps |
| Bandwidth | 1,008 GB/s✓ | 512 GB/s |
Connectivity & Power
| Specification | GeForce RTX 3090 Ti | Radeon RX 6800 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 450 W | 300 W✓ |
| Power Connectors | 1x 16-pin | 2x 8-pin |
| Released | Mar 2022 | Oct 2020 |