GeForce RTX 3090
Radeon RX 6800 XT
GeForce RTX 3090 vs Radeon RX 6800 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 3090 vs Radeon RX 6800 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 3090 vs Radeon RX 6800 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 3090
2020Why buy it
- ✅19.8% more average FPS across 50 tracked games in our benchmark data.
- ✅Access to DLSS 2 Super Resolution (2020).
- ✅50% more VRAM for high-resolution textures and newer games (24 GB vs 16 GB).
Trade-offs
- ❌No equivalent frame-generation stack like FSR Frame Generation + AFMF (2023).
- ❌131% HIGHER MSRP$1,499 MSRPvs$649 MSRP
- ❌Lower G3D Mark per dollar, at 17.7 vs 38.5 G3D/$ ($1,499 MSRP vs $649 MSRP).
- ❌16.7% higher power demand at 350W vs 300W.
- ❌16.9% longer card at 312mm vs 267mm.
Radeon RX 6800 XT
2020Why buy it
- ✅Costs $850 less on MSRP ($649 MSRP vs $1,499 MSRP).
- ✅Delivers 117.1% more G3D Mark for each dollar spent, at 38.5 vs 17.7 G3D/$ ($649 MSRP vs $1,499 MSRP).
- ✅Access to a newer frame-generation stack with FSR Frame Generation + AFMF (2023).
- ✅Draws 300W instead of 350W, a 50W reduction.
- ✅Measures 267mm instead of 312mm, a 45mm shorter card that is more SFF-friendly.
Trade-offs
- ❌Lower average FPS than GeForce RTX 3090 across 50 tracked games in our benchmark data.
- ❌Less VRAM, with 16 GB vs 24 GB for high-resolution textures and newer games.
- ❌No DLSS support; it relies on FSR 3 (2023) instead.
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GeForce RTX 3090 vs Radeon RX 6800 XT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
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.
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.
Graphics Performance
In G3D Mark, the GeForce RTX 3090 scores 26,594 versus the Radeon RX 6800 XT's 24,995 — the GeForce RTX 3090 leads by 6.4%. The GeForce RTX 3090 is built on Ampere while the Radeon RX 6800 XT uses RDNA 2.0, both on 8 nm vs 7 nm. Shader units: 10,496 (GeForce RTX 3090) vs 4,608 (Radeon RX 6800 XT). Raw compute: 35.58 TFLOPS (GeForce RTX 3090) vs 20.74 TFLOPS (Radeon RX 6800 XT). Boost clocks: 1695 MHz vs 2250 MHz. Ray tracing: 82 RT cores (GeForce RTX 3090) vs 72 (Radeon RX 6800 XT) with 328 Tensor cores.
| Feature | GeForce RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| G3D Mark Score | 26,594+6% | 24,995 |
| Architecture | Ampere | RDNA 2.0 |
| Process Node | 8 nm | 7 nm |
| Shading Units | 10496+128% | 4608 |
| Compute (TFLOPS) | 35.58 TFLOPS+72% | 20.74 TFLOPS |
| Boost Clock | 1695 MHz | 2250 MHz+33% |
| ROPs | 112 | 128+14% |
| TMUs | 328+14% | 288 |
| L1 Cache | 10.3 MB+930% | 1 MB |
| L2 Cache | 6 MB+50% | 4 MB |
| Ray Tracing Cores | 82+14% | 72 |
Advanced Features (DLSS/FSR)
The clearest feature edge for the Radeon RX 6800 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 3090 does not have comparable native support in the same tier.The GeForce RTX 3090 gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon RX 6800 XT leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce RTX 3090 | Radeon RX 6800 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 3090 has 24 GB of VRAM, while the Radeon RX 6800 XT carries 16 GB. GeForce RTX 3090 gives you 50% more memory capacity, which matters more once you move into heavier textures, mods, or higher resolutions. Memory bandwidth: 936 GB/s (GeForce RTX 3090) vs 512 GB/s (Radeon RX 6800 XT) — a 82.8% advantage for the GeForce RTX 3090. Memory bus width is 384-bit on the GeForce RTX 3090 and 256-bit on the Radeon RX 6800 XT. L2 Cache: 6 MB (GeForce RTX 3090) vs 4 MB (Radeon RX 6800 XT) — the GeForce RTX 3090 has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| VRAM Capacity | 24 GB+50% | 16 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bandwidth | 936 GB/s+83% | 512 GB/s |
| Bus Width | 384-bit+50% | 256-bit |
| L2 Cache | 6 MB+50% | 4 MB |
Display & API Support
DirectX support: 12 Ultimate (GeForce RTX 3090) vs 12 Ultimate (12_2) (Radeon RX 6800 XT). Vulkan: 1.4 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 4.
| Feature | GeForce RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| DirectX | 12 Ultimate | 12 Ultimate (12_2) |
| Vulkan | 1.4+8% | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: NVENC 7th gen (GeForce RTX 3090) vs VCN 3.0 (Radeon RX 6800 XT). Decoder: NVDEC 5th gen vs VCN 3.0. Supported codecs: H.264,H.265/HEVC,AV1 (GeForce RTX 3090) vs H.264,H.265,VP9,AV1 (Radeon RX 6800 XT).
| Feature | GeForce RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| Encoder | NVENC 7th gen | VCN 3.0 |
| Decoder | NVDEC 5th gen | VCN 3.0 |
| Codecs | H.264,H.265/HEVC,AV1 | H.264,H.265,VP9,AV1 |
Power & Dimensions
The GeForce RTX 3090 draws 350W versus the Radeon RX 6800 XT's 300W — a 15.4% difference. The Radeon RX 6800 XT is more power-efficient. Recommended PSU: 750W (GeForce RTX 3090) vs 750W (Radeon RX 6800 XT). Power connectors: 2x 8-pin vs 2x 8-pin. Card length: 312mm vs 267mm, occupying 3 vs 2 slots. Typical load temperature: 85°C vs 75.
| Feature | GeForce RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| TDP | 350W | 300W-14% |
| Recommended PSU | 750W | 750W |
| Power Connector | 2x 8-pin | 2x 8-pin |
| Length | 312mm | 267mm |
| Height | 140mm | 120mm |
| Slots | 3 | 2-33% |
| Temp (Load) | 85°C | 75-12% |
| Perf/Watt | 76.0 | 83.3+10% |
Value Analysis
At launch, the GeForce RTX 3090 came in at $1499, while the Radeon RX 6800 XT launched at $649. On MSRP, Radeon RX 6800 XT was 56.7% cheaper ($850 less). Performance per dollar on MSRP (G3D Mark / MSRP): 17.7 (GeForce RTX 3090) vs 38.5 (Radeon RX 6800 XT) — the Radeon RX 6800 XT offers 117.5% better value.
| Feature | GeForce RTX 3090 | Radeon RX 6800 XT |
|---|---|---|
| MSRP | $1499 | $649-57% |
| Performance per Dollar | 17.7 | 38.5+118% |
| Codename | GA102 | Navi 21 |
| Release | September 1 2020 | October 28 2020 |
| Ranking | #37 | #42 |
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