GeForce RTX 3080
Radeon RX 6900 XT
GeForce RTX 3080 vs Radeon RX 6900 XT Performance Spectrum
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.
GeForce RTX 3080 vs Radeon RX 6900 XT FPS Benchmarks
Predicted gaming performance across popular games. Tested paired with Ryzen 7 9800X3D to isolate GPU performance.
Search any supported game below to compare 1080p FPS for both components.
Path of Exile 2
Counter-Strike 2
League of Legends
Valorant
Among Us
Apex Legends
ARC Raiders
Baldur's Gate 3
Call of Duty: Black Ops 6
GeForce RTX 3080 vs Radeon RX 6900 XT: Pros, Cons & Final Verdict
See where each GPU makes more sense in practice: raw FPS, VRAM, features, power draw, pricing, and long-term headroom.
GeForce RTX 3080
2020Why buy it
- ✅Costs $300 less on MSRP ($699 MSRP vs $999 MSRP).
- ✅Delivers 34.1% more G3D Mark for each dollar spent, at 35.9 vs 26.8 G3D/$ ($699 MSRP vs $999 MSRP).
- ✅Access to DLSS 2 Super Resolution (2020).
Trade-offs
- ❌Lower average FPS than Radeon RX 6900 XT across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 10 GB vs 16 GB for high-resolution textures and newer games.
- ❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
Radeon RX 6900 XT
2020Why buy it
- ✅2.6% more average FPS across 50 tracked games in our benchmark data.
- ✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
- ✅60% more VRAM for high-resolution textures and newer games (16 GB vs 10 GB).
Trade-offs
- ❌No DLSS support; it relies on FSR 3 (2023) instead.
- ❌42.9% HIGHER MSRP$999 MSRPvs$699 MSRP
- ❌Lower G3D Mark per dollar, at 26.8 vs 35.9 G3D/$ ($999 MSRP vs $699 MSRP).
Quick Answers
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GeForce RTX 3080 vs Radeon RX 6900 XT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
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)
The clearest feature edge for the Radeon RX 6900 XT is support for FSR Frame Generation + AFMF. In games that support it, that can smooth out motion and lift perceived FPS. The GeForce RTX 3080 does not have comparable native support in the same tier.The GeForce RTX 3080 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon RX 6900 XT leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| Upscaling Tech | DLSS 2 Super Resolution | FSR 3 |
| Frame Generation | Not Supported | FSR Frame Generation + AFMF |
| Ray Reconstruction | No | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
The GeForce RTX 3080 has 10 GB of VRAM, while the Radeon RX 6900 XT carries 16 GB. Radeon RX 6900 XT gives you 60% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. 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. Memory bus width is 320-bit on the GeForce RTX 3080 and 256-bit on the Radeon RX 6900 XT. 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
At launch, the GeForce RTX 3080 came in at $699, while the Radeon RX 6900 XT launched at $999. On MSRP, GeForce RTX 3080 was 30% cheaper ($300 less). Performance per dollar on MSRP (G3D Mark / MSRP): 35.9 (GeForce RTX 3080) vs 26.8 (Radeon RX 6900 XT) — the GeForce RTX 3080 offers 34% better value.
| Feature | GeForce RTX 3080 | Radeon RX 6900 XT |
|---|---|---|
| MSRP | $699-30% | $999 |
| Performance per Dollar | 35.9+34% | 26.8 |
| Codename | GA102 | Navi 21 |
| Release | September 1 2020 | October 28 2020 |
| Ranking | #41 | #35 |
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