GeForce RTX 4090 Mobile
Radeon RX 6950 XT
GeForce RTX 4090 Mobile vs Radeon RX 6950 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 4090 Mobile vs Radeon RX 6950 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 4090 Mobile vs Radeon RX 6950 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 4090 Mobile
2023Why buy it
- ✅10.9% more average FPS across 50 tracked games in our benchmark data.
- ✅Better long-term bet: Ada Lovelace (2022−2024) on 4nm gives it a newer hardware base for upcoming games.
- ✅Draws 120W instead of 335W, a 215W reduction.
Trade-offs
- ❌Lower G3D Mark per dollar, at 0 vs 25.5 G3D/$ (Unknown MSRP vs $1,099 MSRP).
Radeon RX 6950 XT
2022Why buy it
- ✅Delivers 100+% more G3D Mark for each dollar spent, at 25.5 vs 0 G3D/$ ($1,099 MSRP vs Unknown MSRP).
Trade-offs
- ❌Lower average FPS than GeForce RTX 4090 Mobile across 50 tracked games in our benchmark data.
- ❌GeForce RTX 4090 Mobile is the safer long-term pick here because the hardware is newer and the feature stack is stronger.
- ❌179.2% higher power demand at 335W vs 120W.
Quick Answers
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GeForce RTX 4090 Mobile vs Radeon RX 6950 XT Technical Specifications
Side-by-side specs, architecture details, clocks, memory, power, and platform differences.
GeForce RTX 4090 Mobile
The GeForce RTX 4090 Mobile is manufactured by NVIDIA. It was released in January 3 2023. It features the Ada Lovelace architecture. The core clock ranges from 1335 MHz to 1695 MHz. It has 9728 shading units. The thermal design power (TDP) is 120W. Manufactured using 4 nm process technology. It features 76 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 27,048 points.
Radeon RX 6950 XT
The Radeon RX 6950 XT is manufactured by AMD. It was released in May 10 2022. It features the RDNA 2.0 architecture. The core clock ranges from 1925 MHz to 2324 MHz. It has 5120 shading units. The thermal design power (TDP) is 335W. Manufactured using 7 nm process technology. It features 80 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 28,076 points. Launch price was $1,099.
Graphics Performance
The GeForce RTX 4090 Mobile scores 27,048 and the Radeon RX 6950 XT reaches 28,076 in the G3D Mark benchmark — just a 3.8% difference, making them near-identical in rasterization performance. The GeForce RTX 4090 Mobile is built on Ada Lovelace while the Radeon RX 6950 XT uses RDNA 2.0, both on 4 nm vs 7 nm. Shader units: 9,728 (GeForce RTX 4090 Mobile) vs 5,120 (Radeon RX 6950 XT). Raw compute: 32.98 TFLOPS (GeForce RTX 4090 Mobile) vs 23.8 TFLOPS (Radeon RX 6950 XT). Boost clocks: 1695 MHz vs 2324 MHz. Ray tracing: 76 RT cores (GeForce RTX 4090 Mobile) vs 80 (Radeon RX 6950 XT) with 304 Tensor cores.
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| G3D Mark Score | 27,048 | 28,076+4% |
| Architecture | Ada Lovelace | RDNA 2.0 |
| Process Node | 4 nm | 7 nm |
| Shading Units | 9728+90% | 5120 |
| Compute (TFLOPS) | 32.98 TFLOPS+39% | 23.8 TFLOPS |
| Boost Clock | 1695 MHz | 2324 MHz+37% |
| ROPs | 112 | 128+14% |
| TMUs | 304 | 320+5% |
| L1 Cache | 9.5 MB+850% | 1 MB |
| L2 Cache | 64 MB+1500% | 4 MB |
| Ray Tracing Cores | 76 | 80+5% |
Advanced Features (DLSS/FSR)
Both GPUs support Frame Generation, but they get there through different ecosystems. The GeForce RTX 4090 Mobile uses DLSS 3.5 + Frame Generation, while the Radeon RX 6950 XT relies on FSR Frame Generation + AFMF. Both can help smooth out supported games, but they are not on the same feature stack.The GeForce RTX 4090 Mobile gets NVIDIA DLSS, which still tends to look cleaner in motion. The Radeon RX 6950 XT leans on FSR, which is flexible and widely supported, but usually a bit rougher at the same settings.
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| Upscaling Tech | DLSS 3.5 Super Resolution | FSR 3 |
| Frame Generation | DLSS 3.5 + Frame Generation | FSR Frame Generation + AFMF |
| Ray Reconstruction | Yes (DLSS 3.5) | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
Both cards ship with 16 GB of GDDR6. Memory bus width is 256-bit on the GeForce RTX 4090 Mobile and 256-bit on the Radeon RX 6950 XT. L2 Cache: 64 MB (GeForce RTX 4090 Mobile) vs 4 MB (Radeon RX 6950 XT) — the GeForce RTX 4090 Mobile has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 576 GB/s | 576 GB/s |
| Bus Width | 256-bit | 256-bit |
| L2 Cache | 64 MB+1500% | 4 MB |
Display & API Support
DirectX support: 12.2 (GeForce RTX 4090 Mobile) vs 12 Ultimate (Radeon RX 6950 XT). Vulkan: 1.3 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 1 vs 4.
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| DirectX | 12.2+2% | 12 Ultimate |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 1 | 4+300% |
Media & Encoding
Hardware encoder: 8th Gen NVENC (GeForce RTX 4090 Mobile) vs RDNA 2 (Radeon RX 6950 XT). Decoder: 5th Gen NVDEC vs RDNA 2. Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4090 Mobile) vs H.264,H.265/HEVC,AV1 decode (Radeon RX 6950 XT).
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| Encoder | 8th Gen NVENC | RDNA 2 |
| Decoder | 5th Gen NVDEC | RDNA 2 |
| Codecs | MPEG-2,H.264,HEVC,VP9,AV1 | H.264,H.265/HEVC,AV1 decode |
Power & Dimensions
The GeForce RTX 4090 Mobile draws 120W versus the Radeon RX 6950 XT's 335W — a 94.5% difference. The GeForce RTX 4090 Mobile is more power-efficient. Recommended PSU: 650W (GeForce RTX 4090 Mobile) vs 850W (Radeon RX 6950 XT). Power connectors: Mobile vs 2x 8-pin. Card length: 0mm vs 267mm, occupying 0 vs 3 slots. Typical load temperature: 80°C vs 83°C.
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| TDP | 120W-64% | 335W |
| Recommended PSU | 650W-24% | 850W |
| Power Connector | Mobile | 2x 8-pin |
| Length | 0mm | 267mm |
| Height | 0mm | 120mm |
| Slots | 0-100% | 3 |
| Temp (Load) | 80°C-4% | 83°C |
| Perf/Watt | 225.4+169% | 83.8 |
Value Analysis
The newer card here is GeForce RTX 4090 Mobile (2023 vs 2022).
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| MSRP | — | $1099 |
| Codename | AD103 | Navi 21 |
| Release | January 3 2023 | May 10 2022 |
| Ranking | #30 | #25 |
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