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 6600 XT is available. Benchmarks for other models are currently being processed.
The GeForce RTX 4080 is dramatically faster than the Radeon RX 6600 XT, leading by roughly 206% in our performance index.
Maximum Capacity Reached. Remove a model to add another. (2/2)
GeForce RTX 4080 vs Radeon RX 6600 XT: In-Depth Breakdown
Performance: GeForce RTX 4080 vs Radeon RX 6600 XT
The GeForce RTX 4080 is dramatically faster, around 206% ahead of the Radeon RX 6600 XT. That gap is enough to move it up a tier: the GeForce RTX 4080 is comfortable at 4K with upscaling and native 1440p, while the Radeon RX 6600 XT is better matched to 1080p.
Power & Efficiency
The Radeon RX 6600 XT pulls less power (160W vs 320W), so it's the easier card to cool and the lighter load on your PSU. The faster GeForce RTX 4080 draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it. 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 8GB, the GeForce RTX 4080 has more headroom for 4K textures and memory-hungry creative/AI tasks where the Radeon RX 6600 XT's 8GB can fall short.
Features & Ecosystem
Beyond raw numbers, the GeForce RTX 4080 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 4080 or Radeon RX 6600 XT?
The GeForce RTX 4080 is the faster card by about 206%. 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 4080 better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the GeForce RTX 4080 or the Radeon RX 6600 XT?
Does the GeForce RTX 4080 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4080 | Radeon RX 6600 XT |
|---|---|---|
| Architecture | Ada Lovelace | RDNA 2 |
| Process Node | TSMC 4N | TSMC N7 |
| CUDA Cores (CUDA Cores / Stream Processors) | 9,728✓ | 2,048 |
| Ray Tracing Cores | 76✓ | 32 |
| Tensor / AI Cores | 304 | — |
Clock Speeds
| Specification | GeForce RTX 4080 | Radeon RX 6600 XT |
|---|---|---|
| Base Clock | 2,205 MHz✓ | 1,968 MHz |
| Boost Clock | 2,505 MHz | 2,589 MHz✓ |
Memory
| Specification | GeForce RTX 4080 | Radeon RX 6600 XT |
|---|---|---|
| VRAM Capacity | 16 GB✓ | 8 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bus | 256-bit✓ | 128-bit |
| Memory Speed | 22.4 Gbps✓ | 16 Gbps |
| Bandwidth | 716.8 GB/s✓ | 256 GB/s |
Connectivity & Power
| Specification | GeForce RTX 4080 | Radeon RX 6600 XT |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x8 |
| TDP | 320 W | 160 W✓ |
| Power Connectors | 1x 16-pin | 1x 8-pin |
| Released | Sep 2022 | Jul 2021 |
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