Radeon RX 6800 XT vs GeForce RTX 3090
Radeon RX 6800 XT
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GeForce RTX 3090
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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 6800 XT
Performance Per Dollar GeForce RTX 3090
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce RTX 3090 is the superior choice for raw performance. It leads with a 6.4% higher G3D Mark score and 50% more VRAM (24 GB vs 16 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX 6800 XT.
| Insight | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-6.4%) | ✅Leading raw performance (+6.4%) |
| 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 (24 GB) |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | Standard Size (267mm) | Standard Size (312mm) |
💎 Value Proposition
The Radeon RX 6800 XT offers a compelling cost-to-performance ratio. Priced at $743 versus $900 for the GeForce RTX 3090, it costs 17% less. While it maintains competitive performance, this results in a 13.8% higher cost efficiency score.
| Insight | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| Cost Efficiency | ✅Better overall value (+13.8%) | ❌Lower cost efficiency |
| Upfront Cost | ✅More affordable ($743) | ⚠️Higher upfront cost ($900) |
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 6800 XT and GeForce RTX 3090
Radeon RX 6800 XT
The Radeon RX 6800 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 4608 shading units. The thermal design power (TDP) is 300W. Manufactured using 7 nm process technology. It features 72 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 24,995 points. Launch price was $649.
GeForce RTX 3090
The GeForce RTX 3090 is manufactured by NVIDIA. It was released in September 1 2020. It features the Ampere architecture. The core clock ranges from 1395 MHz to 1695 MHz. It has 10496 shading units. The thermal design power (TDP) is 350W. Manufactured using 8 nm process technology. It features 82 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 26,594 points. Launch price was $1,499.
Graphics Performance
In G3D Mark, the Radeon RX 6800 XT scores 24,995 versus the GeForce RTX 3090's 26,594 — the GeForce RTX 3090 leads by 6.4%. The Radeon RX 6800 XT is built on RDNA 2.0 while the GeForce RTX 3090 uses Ampere, both on 7 nm vs 8 nm. Shader units: 4,608 (Radeon RX 6800 XT) vs 10,496 (GeForce RTX 3090). Raw compute: 20.74 TFLOPS (Radeon RX 6800 XT) vs 35.58 TFLOPS (GeForce RTX 3090). Boost clocks: 2250 MHz vs 1695 MHz. Ray tracing: 72 RT cores (Radeon RX 6800 XT) vs 82 (GeForce RTX 3090) vs 328.
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| G3D Mark Score | 24,995 | 26,594+6% |
| Architecture | RDNA 2.0 | Ampere |
| Process Node | 7 nm | 8 nm |
| Shading Units | 4608 | 10496+128% |
| Compute (TFLOPS) | 20.74 TFLOPS | 35.58 TFLOPS+72% |
| Boost Clock | 2250 MHz+33% | 1695 MHz |
| ROPs | 128+14% | 112 |
| TMUs | 288 | 328+14% |
| L1 Cache | 1 MB | 10.3 MB+930% |
| L2 Cache | 4 MB | 6 MB+50% |
| Ray Tracing Cores | 72 | 82+14% |
Advanced Features (DLSS/FSR)
A critical advantage for the Radeon RX 6800 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 3090 lacks specific hardware/driver support for this native frame generation tier.
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| 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 6800 XT comes with 16 GB of VRAM, while the GeForce RTX 3090 has 24 GB. The GeForce RTX 3090 offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 512 GB/s (Radeon RX 6800 XT) vs 936 GB/s (GeForce RTX 3090) — a 82.8% advantage for the GeForce RTX 3090. Bus width: 256-bit vs 384-bit. L2 Cache: 4 MB (Radeon RX 6800 XT) vs 6 MB (GeForce RTX 3090) — the GeForce RTX 3090 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| VRAM Capacity | 16 GB | 24 GB+50% |
| Memory Type | GDDR6 | GDDR6X |
| Memory Bandwidth | 512 GB/s | 936 GB/s+83% |
| Bus Width | 256-bit | 384-bit+50% |
| L2 Cache | 4 MB | 6 MB+50% |
Display & API Support
DirectX support: 12 Ultimate (12_2) (Radeon RX 6800 XT) vs 12 Ultimate (GeForce RTX 3090). Vulkan: 1.3 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| DirectX | 12 Ultimate (12_2) | 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 6800 XT) vs NVENC 7th gen (GeForce RTX 3090). Decoder: VCN 3.0 vs NVDEC 5th gen. Supported codecs: H.264,H.265,VP9,AV1 (Radeon RX 6800 XT) vs H.264,H.265/HEVC,AV1 (GeForce RTX 3090).
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| Encoder | VCN 3.0 | NVENC 7th gen |
| Decoder | VCN 3.0 | NVDEC 5th gen |
| Codecs | H.264,H.265,VP9,AV1 | H.264,H.265/HEVC,AV1 |
Power & Dimensions
The Radeon RX 6800 XT draws 300W versus the GeForce RTX 3090's 350W — a 15.4% difference. The Radeon RX 6800 XT is more power-efficient. Recommended PSU: 750W (Radeon RX 6800 XT) vs 750W (GeForce RTX 3090). Power connectors: 2x 8-pin vs 2x 8-pin. Card length: 267mm vs 312mm, occupying 2 vs 3 slots. Typical load temperature: 75 vs 85°C.
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| TDP | 300W-14% | 350W |
| Recommended PSU | 750W | 750W |
| Power Connector | 2x 8-pin | 2x 8-pin |
| Length | 267mm | 312mm |
| Height | 120mm | 140mm |
| Slots | 2-33% | 3 |
| Temp (Load) | 75-12% | 85°C |
| Perf/Watt | 83.3+10% | 76.0 |
Value Analysis
The Radeon RX 6800 XT launched at $649 MSRP and currently averages $743, while the GeForce RTX 3090 launched at $1499 and now averages $900. The Radeon RX 6800 XT costs 17.4% less ($157 savings) at current market prices. Performance per dollar (G3D Mark / price): 33.6 (Radeon RX 6800 XT) vs 29.5 (GeForce RTX 3090) — the Radeon RX 6800 XT offers 13.9% better value.
| Feature | Radeon RX 6800 XT | GeForce RTX 3090 |
|---|---|---|
| MSRP | $649-57% | $1499 |
| Avg Price (30d) | $743-17% | $900 |
| Performance per Dollar | 33.6+14% | 29.5 |
| Codename | Navi 21 | GA102 |
| Release | October 28 2020 | September 1 2020 |
| Ranking | #42 | #37 |
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