Radeon RX 6900 XT vs GeForce RTX 3080 Ti
Radeon RX 6900 XT
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GeForce RTX 3080 Ti
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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 6900 XT
Performance Per Dollar GeForce RTX 3080 Ti
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce RTX 3080 Ti is the superior choice for raw performance. It leads with a 0.5% higher G3D Mark score. However, the Radeon RX 6900 XT offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| Performance | ❌Lower raw frame rates (-0.5%) | ✅Leading raw performance (+0.5%) |
| Longevity | 🔮Strong Longevity (RDNA 2.0 (2020−2025) / 7nm) | 🔮Strong Longevity (Ampere (2020−2025) / 8nm) |
| Ecosystem | Supports FSR Upscaling | ✨ DLSS 2 Upscaling |
| VRAM | 🎮 High Capacity (16 GB) | 🎮 High Capacity (12 GB) |
| Efficiency | 💡 Excellent Perf/Watt | Normal Efficiency |
| Case Fit | Standard Size (267mm) | Standard Size (285mm) |
💎 Value Proposition
The Radeon RX 6900 XT offers a compelling cost-to-performance ratio. Priced at $385 versus $550 for the GeForce RTX 3080 Ti, it costs 30% less. While it maintains competitive performance, this results in a 42.2% higher cost efficiency score.
| Insight | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+42.2%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($385) | ⚠️Higher upfront cost ($550) |
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 6900 XT and GeForce RTX 3080 Ti
Radeon RX 6900 XT
The Radeon RX 6900 XT is manufactured by AMD. It was released in October 28 2020. It features the RDNA 2.0 architecture. The core clock ranges from 1825 MHz to 2250 MHz. It has 5120 shading units. The thermal design power (TDP) is 300W. Manufactured using 7 nm process technology. It features 80 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,729 points. Launch price was $999.
GeForce RTX 3080 Ti
The GeForce RTX 3080 Ti is manufactured by NVIDIA. It was released in May 31 2021. It features the Ampere architecture. The core clock ranges from 1365 MHz to 1665 MHz. It has 10240 shading units. The thermal design power (TDP) is 350W. Manufactured using 8 nm process technology. It features 80 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,861 points. Launch price was $1,199.
Graphics Performance
The Radeon RX 6900 XT scores 26,729 and the GeForce RTX 3080 Ti reaches 26,861 in the G3D Mark benchmark — just a 0.5% difference, making them near-identical in rasterization performance. The Radeon RX 6900 XT is built on RDNA 2.0 while the GeForce RTX 3080 Ti uses Ampere, both on 7 nm vs 8 nm. Shader units: 5,120 (Radeon RX 6900 XT) vs 10,240 (GeForce RTX 3080 Ti). Raw compute: 23.04 TFLOPS (Radeon RX 6900 XT) vs 34.1 TFLOPS (GeForce RTX 3080 Ti). Boost clocks: 2250 MHz vs 1665 MHz. Ray tracing: 80 RT cores (Radeon RX 6900 XT) vs 80 (GeForce RTX 3080 Ti) vs 320.
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| G3D Mark Score | 26,729 | 26,861 |
| Architecture | RDNA 2.0 | Ampere |
| Process Node | 7 nm | 8 nm |
| Shading Units | 5120 | 10240+100% |
| Compute (TFLOPS) | 23.04 TFLOPS | 34.1 TFLOPS+48% |
| Boost Clock | 2250 MHz+35% | 1665 MHz |
| ROPs | 128+14% | 112 |
| TMUs | 320 | 320 |
| L1 Cache | 1 MB | 10 MB+900% |
| L2 Cache | 4 MB | 6 MB+50% |
| Ray Tracing Cores | 80 | 80 |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 6900 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 Ti lacks specific hardware/driver support for this native frame generation tier.
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| 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)
The Radeon RX 6900 XT comes with 16 GB of VRAM, while the GeForce RTX 3080 Ti has 12 GB. The Radeon RX 6900 XT offers 33.3% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 512 GB/s (Radeon RX 6900 XT) vs 912 GB/s (GeForce RTX 3080 Ti) — a 78.1% advantage for the GeForce RTX 3080 Ti. Bus width: 256-bit vs 384-bit. L2 Cache: 4 MB (Radeon RX 6900 XT) vs 6 MB (GeForce RTX 3080 Ti) — the GeForce RTX 3080 Ti has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| VRAM Capacity | 16 GB+33% | 12 GB |
| Memory Type | GDDR6 | GDDR6X |
| Memory Bandwidth | 512 GB/s | 912 GB/s+78% |
| Bus Width | 256-bit | 384-bit+50% |
| L2 Cache | 4 MB | 6 MB+50% |
Display & API Support
DirectX support: 12 Ultimate (Radeon RX 6900 XT) vs 12 Ultimate (GeForce RTX 3080 Ti). Vulkan: 1.3 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| DirectX | 12 Ultimate | 12 Ultimate |
| Vulkan | 1.3 | 1.4+8% |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: VCN 3.0 (Radeon RX 6900 XT) vs NVENC 7th gen (GeForce RTX 3080 Ti). Decoder: VCN 3.0 vs NVDEC 5th gen. Supported codecs: H.264,H.265/HEVC,AV1,VP9 (Radeon RX 6900 XT) vs H.264,H.265/HEVC,AV1 (GeForce RTX 3080 Ti).
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| Encoder | VCN 3.0 | NVENC 7th gen |
| Decoder | VCN 3.0 | NVDEC 5th gen |
| Codecs | H.264,H.265/HEVC,AV1,VP9 | H.264,H.265/HEVC,AV1 |
Power & Dimensions
The Radeon RX 6900 XT draws 300W versus the GeForce RTX 3080 Ti's 350W — a 15.4% difference. The Radeon RX 6900 XT is more power-efficient. Recommended PSU: 850W (Radeon RX 6900 XT) vs 750W (GeForce RTX 3080 Ti). Power connectors: 2x 8-pin vs 2x 8-pin. Card length: 267mm vs 285mm, occupying 2.5 vs 2 slots. Typical load temperature: 80°C vs 85°C.
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| TDP | 300W-14% | 350W |
| Recommended PSU | 850W | 750W-12% |
| Power Connector | 2x 8-pin | 2x 8-pin |
| Length | 267mm | 285mm |
| Height | 120mm | 112mm |
| Slots | 2.5 | 2-20% |
| Temp (Load) | 80°C-6% | 85°C |
| Perf/Watt | 89.1+16% | 76.7 |
Value Analysis
The Radeon RX 6900 XT launched at $999 MSRP and currently averages $385, while the GeForce RTX 3080 Ti launched at $1199 and now averages $550. The Radeon RX 6900 XT costs 30% less ($165 savings) at current market prices. Performance per dollar (G3D Mark / price): 69.4 (Radeon RX 6900 XT) vs 48.8 (GeForce RTX 3080 Ti) — the Radeon RX 6900 XT offers 42.2% better value. The GeForce RTX 3080 Ti is the newer GPU (2021 vs 2020).
| Feature | Radeon RX 6900 XT | GeForce RTX 3080 Ti |
|---|---|---|
| MSRP | $999-17% | $1199 |
| Avg Price (30d) | $385-30% | $550 |
| Performance per Dollar | 69.4+42% | 48.8 |
| Codename | Navi 21 | GA102 |
| Release | October 28 2020 | May 31 2021 |
| Ranking | #35 | #33 |
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