GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Market comparison is currently pending while we verify the latest benchmarks for GeForce RTX 4080 and Radeon RX 6600 XT.
The GeForce RTX 4080 is dramatically faster than the Radeon RX 6600 XT, leading by roughly 206% in our performance index. The Radeon RX 6600 XT, however, delivers more performance per dollar — $229,758 JPY cheaper.
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.
Price & Value
Right now the Radeon RX 6600 XT starts at $75,658 JPY against $305,416 JPY for the GeForce RTX 4080. Despite being slower, the Radeon RX 6600 XT offers the better performance-per-dollar (~32% better value), so budget-focused buyers should weigh it carefully. The Radeon RX 6600 XT still sits about $75,279 JPY above its $379 JPY MSRP. The GeForce RTX 4080 still sits about $304,217 JPY above its $1,199 JPY MSRP.
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?
Choose the GeForce RTX 4080 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 4080 better than the Radeon RX 6600 XT?
Which is better for 4K gaming, the GeForce RTX 4080 or the Radeon RX 6600 XT?
Is the GeForce RTX 4080 worth the extra $229,758 JPY over 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 |
Related Reading
The Ultimate 1440p Powerhouse: NVIDIA GeForce RTX 4080
In 2026, the RTX 4080 has found its sweet spot. Is this former 4K titan the ultimate high-refresh 1440p card for today's market?
Best for: The 4K Texture Modder & Raw Power Enthusiast
Modded Skyrim and Starfield at 4K can exceed 18GB of VRAM usage. Discover why the 7900 XT's 20GB buffer is a necessity.