Radeon RX 6600 XT vs GeForce RTX 3080 Mobile
Radeon RX 6600 XT
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GeForce RTX 3080 Mobile
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Performance Spectrum - GPU
About G3D Mark
G3D Mark is a standard benchmark that measures graphics performance in real-world gaming scenarios. It simplifies comparing cards from different brands, where higher scores directly correlate with better fps and smoother gaming experiences.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (G3D Mark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Radeon RX 6600 XT
Performance Per Dollar GeForce RTX 3080 Mobile
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon RX 6600 XT is the superior choice for raw performance. It leads with a 1.5% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce RTX 3080 Mobile.
| Insight | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| Performance | ✅Leading raw performance (+1.5%) | ❌Lower raw frame rates (-1.5%) |
| Longevity | 🔮Strong Longevity (RDNA 2.0 (2020−2025) / 7nm) | 🔮Strong Longevity (Ampere / 8nm) |
| Ecosystem | Supports FSR Upscaling | ✨ DLSS 2 Upscaling |
| VRAM | 🎮 High Capacity (8 GB) | 🎮 High Capacity (8 GB) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | 📏 Compact / SFF Friendly | — |
💎 Value Proposition
While current pricing data is unavailable, the Radeon RX 6600 XT remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
Performance Check
Real-world benchmarks and performance projections based on comprehensive hardware analysis and comparative metrics. Values represent expected performance on High/Ultra settings at 1080p, 1440p, and 4K. Modeled using a Ryzen 7 7800X3D reference profile to minimize specific CPU bottlenecks.
Note: Performance behavior can vary per game. Specific architectures may perform better or worse depending on game engine optimizations and API implementation.
Technical Specifications
Side-by-side comparison of Radeon RX 6600 XT and GeForce RTX 3080 Mobile
Radeon RX 6600 XT
The Radeon RX 6600 XT is manufactured by AMD. It was released in July 30 2021. It features the RDNA 2.0 architecture. The core clock ranges from 1968 MHz to 2589 MHz. It has 2048 shading units. The thermal design power (TDP) is 160W. Manufactured using 7 nm process technology. It features 32 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 16,453 points. Launch price was $379.
GeForce RTX 3080 Mobile
The GeForce RTX 3080 Mobile is manufactured by NVIDIA. It was released in January 12 2021. It features the Ampere architecture. The core clock ranges from 1110 MHz to 1545 MHz. It has 6144 shading units. The thermal design power (TDP) is 115W. Manufactured using 8 nm process technology. It features 48 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 16,214 points.
Graphics Performance
The Radeon RX 6600 XT scores 16,453 and the GeForce RTX 3080 Mobile reaches 16,214 in the G3D Mark benchmark — just a 1.5% difference, making them near-identical in rasterization performance. The Radeon RX 6600 XT is built on RDNA 2.0 while the GeForce RTX 3080 Mobile uses Ampere, both on 7 nm vs 8 nm. Shader units: 2,048 (Radeon RX 6600 XT) vs 6,144 (GeForce RTX 3080 Mobile). Raw compute: 10.6 TFLOPS (Radeon RX 6600 XT) vs 18.98 TFLOPS (GeForce RTX 3080 Mobile). Boost clocks: 2589 MHz vs 1545 MHz. Ray tracing: 32 RT cores (Radeon RX 6600 XT) vs 48 (GeForce RTX 3080 Mobile) vs 192.
| Feature | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| G3D Mark Score | 16,453+1% | 16,214 |
| Architecture | RDNA 2.0 | Ampere |
| Process Node | 7 nm | 8 nm |
| Shading Units | 2048 | 6144+200% |
| Compute (TFLOPS) | 10.6 TFLOPS | 18.98 TFLOPS+79% |
| Boost Clock | 2589 MHz+68% | 1545 MHz |
| ROPs | 64 | 96+50% |
| TMUs | 128 | 192+50% |
| L1 Cache | 0.5 MB | 6 MB+1100% |
| L2 Cache | 2 MB | 4 MB+100% |
| Ray Tracing Cores | 32 | 48+50% |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 6600 XT is support for FSR 3 / AFMF. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce RTX 3080 Mobile lacks specific hardware/driver support for this native frame generation tier.
| Feature | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| Upscaling Tech | FSR 3 (Native) | DLSS 2.0 |
| Frame Generation | FSR 3 / AFMF (Driver) | FSR 3 / AFMF (Compatible) |
| Ray Reconstruction | No | No |
| Low Latency | AMD Anti-Lag | NVIDIA Reflex |
Video Memory (VRAM)
Both cards feature 8 GB of GDDR6. Memory bandwidth: 256 GB/s (Radeon RX 6600 XT) vs 448 GB/s (GeForce RTX 3080 Mobile) — a 75% advantage for the GeForce RTX 3080 Mobile. Bus width: 128-bit vs 256-bit. L2 Cache: 2 MB (Radeon RX 6600 XT) vs 4 MB (GeForce RTX 3080 Mobile) — the GeForce RTX 3080 Mobile has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| VRAM Capacity | 8 GB | 8 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 256 GB/s | 448 GB/s+75% |
| Bus Width | 128-bit | 256-bit+100% |
| L2 Cache | 2 MB | 4 MB+100% |
Display & API Support
DirectX support: 12 Ultimate (Radeon RX 6600 XT) vs 12.2 (GeForce RTX 3080 Mobile). Vulkan: 1.4 vs 1.2. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| DirectX | 12 Ultimate | 12.2+2% |
| Vulkan | 1.4+17% | 1.2 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: VCE (Radeon RX 6600 XT) vs 7th Gen NVENC (GeForce RTX 3080 Mobile). Decoder: UVD vs 5th Gen NVDEC. Supported codecs: H.264,H.265/HEVC,AV1 (Radeon RX 6600 XT) vs MPEG-2,H.264,HEVC,VP9,AV1 (Decode) (GeForce RTX 3080 Mobile).
| Feature | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| Encoder | VCE | 7th Gen NVENC |
| Decoder | UVD | 5th Gen NVDEC |
| Codecs | H.264,H.265/HEVC,AV1 | MPEG-2,H.264,HEVC,VP9,AV1 (Decode) |
Power & Dimensions
The Radeon RX 6600 XT draws 160W versus the GeForce RTX 3080 Mobile's 115W — a 32.7% difference. The GeForce RTX 3080 Mobile is more power-efficient. Recommended PSU: 500W (Radeon RX 6600 XT) vs 650W (GeForce RTX 3080 Mobile). Power connectors: 8-pin vs Mobile. Card length: 190mm vs 0mm, occupying 2 vs 0 slots. Typical load temperature: 75°C vs 80°C.
| Feature | Radeon RX 6600 XT | GeForce RTX 3080 Mobile |
|---|---|---|
| TDP | 160W | 115W-28% |
| Recommended PSU | 500W-23% | 650W |
| Power Connector | 8-pin | Mobile |
| Length | 190mm | 0mm |
| Height | 110mm | 0mm |
| Slots | 2 | 0-100% |
| Temp (Load) | 75°C-6% | 80°C |
| Perf/Watt | 102.8 | 141.0+37% |
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