CPU
GPU
GeForce RTX 3080
Popular choices:
Radeon RX 6900 XT
Popular choices:
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 GeForce RTX 3080
Performance Per Dollar Radeon RX 6900 XT
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon RX 6900 XT is the superior choice for raw performance. It leads with a 6.6% higher G3D Mark score and 60% more VRAM (16 GB vs 10 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce RTX 3080.
| Insight | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| Performance | ❌Lower raw frame rates (-6.6%) | ✅Leading raw performance (+6.6%) |
| Longevity | 🔮Strong Longevity (Ampere (2020−2025) / 8nm) | 🔮Strong Longevity (RDNA 2.0 (2020−2025) / 7nm) |
| Ecosystem | ✨ DLSS 2 Upscaling | Supports FSR Upscaling |
| VRAM | 🎮 High Capacity (10 GB) | 🎮 High Capacity (16 GB) |
| Efficiency | Normal Efficiency | Normal Efficiency |
| Case Fit | Standard Size (285mm) | Standard Size (267mm) |
💎 Value Proposition
The Radeon RX 6900 XT offers a compelling cost-to-performance ratio. Priced at $385 versus $400 for the GeForce RTX 3080, it costs 4% less. While it maintains competitive performance, this results in a 10.8% higher cost efficiency score.
| Insight | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| Cost Efficiency | ❌Lower cost efficiency | ✅Better overall value (+10.8%) |
| Upfront Cost | ⚠️Higher upfront cost ($400) | ✅More affordable ($385) |
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 GeForce RTX 3080 and Radeon RX 6900 XT
GeForce RTX 3080
The GeForce RTX 3080 is manufactured by NVIDIA. It was released in September 1 2020. It features the Ampere architecture. The core clock ranges from 1440 MHz to 1710 MHz. It has 8704 shading units. The thermal design power (TDP) is 320W. Manufactured using 8 nm process technology. It features 68 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 25,071 points. Launch price was $699.
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.
Graphics Performance
In G3D Mark, the GeForce RTX 3080 scores 25,071 versus the Radeon RX 6900 XT's 26,729 — the Radeon RX 6900 XT leads by 6.6%. The GeForce RTX 3080 is built on Ampere while the Radeon RX 6900 XT uses RDNA 2.0, both on 8 nm vs 7 nm. Shader units: 8,704 (GeForce RTX 3080) vs 5,120 (Radeon RX 6900 XT). Raw compute: 29.77 TFLOPS (GeForce RTX 3080) vs 23.04 TFLOPS (Radeon RX 6900 XT). Boost clocks: 1710 MHz vs 2250 MHz. Ray tracing: 68 RT cores (GeForce RTX 3080) vs 80 (Radeon RX 6900 XT) with 272 Tensor cores.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| G3D Mark Score | 25,071 | 26,729+7% |
| Architecture | Ampere | RDNA 2.0 |
| Process Node | 8 nm | 7 nm |
| Shading Units | 8704+70% | 5120 |
| Compute (TFLOPS) | 29.77 TFLOPS+29% | 23.04 TFLOPS |
| Boost Clock | 1710 MHz | 2250 MHz+32% |
| ROPs | 96 | 128+33% |
| TMUs | 272 | 320+18% |
| L1 Cache | 8.5 MB+750% | 1 MB |
| L2 Cache | 5 MB+25% | 4 MB |
| Ray Tracing Cores | 68 | 80+18% |
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 lacks specific hardware/driver support for this native frame generation tier.The GeForce RTX 3080 gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The Radeon RX 6900 XT relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| Upscaling Tech | DLSS 2.0 | FSR 3 (Native) |
| Frame Generation | FSR 3 / AFMF (Compatible) | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce RTX 3080 comes with 10 GB of VRAM, while the Radeon RX 6900 XT has 16 GB. The Radeon RX 6900 XT offers 60% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 760 GB/s (GeForce RTX 3080) vs 512 GB/s (Radeon RX 6900 XT) — a 48.4% advantage for the GeForce RTX 3080. Bus width: 320-bit vs 256-bit. L2 Cache: 5 MB (GeForce RTX 3080) vs 4 MB (Radeon RX 6900 XT) — the GeForce RTX 3080 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| VRAM Capacity | 10 GB | 16 GB+60% |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bandwidth | 760 GB/s+48% | 512 GB/s |
| Bus Width | 320-bit+25% | 256-bit |
| L2 Cache | 5 MB+25% | 4 MB |
Display & API Support
DirectX support: 12 Ultimate (12_2) (GeForce RTX 3080) vs 12 Ultimate (Radeon RX 6900 XT). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| DirectX | 12 Ultimate (12_2) | 12 Ultimate |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: NVENC (Ampere) (GeForce RTX 3080) vs VCN 3.0 (Radeon RX 6900 XT). Decoder: NVDEC (Ampere) vs VCN 3.0. Supported codecs: H.264,H.265,VP9,AV1 (GeForce RTX 3080) vs H.264,H.265/HEVC,AV1,VP9 (Radeon RX 6900 XT).
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| Encoder | NVENC (Ampere) | VCN 3.0 |
| Decoder | NVDEC (Ampere) | VCN 3.0 |
| Codecs | H.264,H.265,VP9,AV1 | H.264,H.265/HEVC,AV1,VP9 |
Power & Dimensions
The GeForce RTX 3080 draws 320W versus the Radeon RX 6900 XT's 300W — a 6.5% difference. The Radeon RX 6900 XT is more power-efficient. Recommended PSU: 750W (GeForce RTX 3080) vs 850W (Radeon RX 6900 XT). Power connectors: 2x 8-pin vs 2x 8-pin. Card length: 285mm vs 267mm, occupying 2 vs 2.5 slots. Typical load temperature: 75 vs 80°C.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| TDP | 320W | 300W-6% |
| Recommended PSU | 750W-12% | 850W |
| Power Connector | 2x 8-pin | 2x 8-pin |
| Length | 285mm | 267mm |
| Height | 112mm | 120mm |
| Slots | 2-20% | 2.5 |
| Temp (Load) | 75-6% | 80°C |
| Perf/Watt | 78.3 | 89.1+14% |
Value Analysis
The GeForce RTX 3080 launched at $699 MSRP and currently averages $400, while the Radeon RX 6900 XT launched at $999 and now averages $385. The Radeon RX 6900 XT costs 3.8% less ($15 savings) at current market prices. Performance per dollar (G3D Mark / price): 62.7 (GeForce RTX 3080) vs 69.4 (Radeon RX 6900 XT) — the Radeon RX 6900 XT offers 10.7% better value.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| MSRP | $699-30% | $999 |
| Avg Price (30d) | $400 | $385-4% |
| Performance per Dollar | 62.7 | 69.4+11% |
| Codename | GA102 | Navi 21 |
| Release | September 1 2020 | October 28 2020 |
| Ranking | #41 | #35 |
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