GeForce RTX 4090 Mobile vs Radeon RX 6950 XT
GeForce RTX 4090 Mobile
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Radeon RX 6950 XT
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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 GeForce RTX 4090 Mobile
Performance Per Dollar Radeon RX 6950 XT
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The Radeon RX 6950 XT is the superior choice for raw performance. It leads with a 3.8% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce RTX 4090 Mobile.
| Insight | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| Performance | ❌Lower raw frame rates (-3.8%) | ✅Leading raw performance (+3.8%) |
| Longevity | 🏆Elite Architecture (Ada Lovelace (2022−2024) / 4nm) | 🔮Strong Longevity (RDNA 2.0 (2020−2025) / 7nm) |
| Ecosystem | ✨ DLSS 3/4 + Frame Gen Support | Supports FSR Upscaling |
| VRAM | 🎮 High Capacity (16 GB) | 🎮 High Capacity (16 GB) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | Standard Size (267mm) |
💎 Value Proposition
While current pricing data is unavailable, the Radeon RX 6950 XT remains the clear technical winner. Check real-time availability to determine if the performance gap justifies the market price.
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 4090 Mobile and Radeon RX 6950 XT
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 technologies, but they achieve it differently. The GeForce RTX 4090 Mobile uses DLSS 3 (AI-based) which is hardware-accelerated on Tensor Cores, often providing superior image quality. The Radeon RX 6950 XT utilizes FSR 3 & AFMF, which is more open but driver-based. Both can significantly boost FPS in supported titles.The GeForce RTX 4090 Mobile gives access to NVIDIA DLSS (Deep Learning Super Sampling), widely regarding as the superior upscaling method for image quality. The Radeon RX 6950 XT relies on FSR (FidelityFX Super Resolution), which is capable but generally slightly noisier than DLSS in motion.
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| Upscaling Tech | DLSS 3.5 | FSR 3 (Native) |
| Frame Generation | DLSS 3.0 (Native) | FSR 3 / AFMF (Driver) |
| Ray Reconstruction | Yes (DLSS 3.5) | No |
| Low Latency | NVIDIA Reflex | AMD Anti-Lag |
Video Memory (VRAM)
Both cards feature 16 GB of GDDR6. Bus width: 256-bit vs 256-bit. 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 GeForce RTX 4090 Mobile is the newer GPU (2023 vs 2022).
| Feature | GeForce RTX 4090 Mobile | Radeon RX 6950 XT |
|---|---|---|
| MSRP | — | $1099 |
| Avg Price (30d) | — | $850 |
| Codename | AD103 | Navi 21 |
| Release | January 3 2023 | May 10 2022 |
| Ranking | #30 | #25 |
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