CPU
GPU
GeForce RTX 4090 Laptop GPU
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 4090 Laptop GPU
Performance Per Dollar Radeon RX 6900 XT
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce RTX 4090 Laptop GPU is the superior choice for raw performance. It leads with a 1.4% higher G3D Mark score. This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the Radeon RX 6900 XT.
| Insight | GeForce RTX 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| Performance | ✅Leading raw performance (+1.4%) | ❌Lower raw frame rates (-1.4%) |
| Longevity | 🏆Elite Architecture (Ada Lovelace (2022−2024) / 5nm) | 🔮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 | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | — | Standard Size (267mm) |
💎 Value Proposition
While current pricing data is unavailable, the GeForce RTX 4090 Laptop GPU 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 Laptop GPU and Radeon RX 6900 XT
GeForce RTX 4090 Laptop GPU
The GeForce RTX 4090 Laptop GPU is manufactured by NVIDIA. It was released in December 28 2023. It features the Ada Lovelace architecture. The core clock ranges from 2280 MHz to 2520 MHz. It has 14592 shading units. The thermal design power (TDP) is 425W. Manufactured using 5 nm process technology. It features 114 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 27,102 points. Launch price was $1,599.
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
The GeForce RTX 4090 Laptop GPU scores 27,102 and the Radeon RX 6900 XT reaches 26,729 in the G3D Mark benchmark — just a 1.4% difference, making them near-identical in rasterization performance. The GeForce RTX 4090 Laptop GPU is built on Ada Lovelace while the Radeon RX 6900 XT uses RDNA 2.0, both on 5 nm vs 7 nm. Shader units: 14,592 (GeForce RTX 4090 Laptop GPU) vs 5,120 (Radeon RX 6900 XT). Raw compute: 73.54 TFLOPS (GeForce RTX 4090 Laptop GPU) vs 23.04 TFLOPS (Radeon RX 6900 XT). Boost clocks: 2520 MHz vs 2250 MHz. Ray tracing: 114 RT cores (GeForce RTX 4090 Laptop GPU) vs 80 (Radeon RX 6900 XT) with 456 Tensor cores.
| Feature | GeForce RTX 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| G3D Mark Score | 27,102+1% | 26,729 |
| Architecture | Ada Lovelace | RDNA 2.0 |
| Process Node | 5 nm | 7 nm |
| Shading Units | 14592+185% | 5120 |
| Compute (TFLOPS) | 73.54 TFLOPS+219% | 23.04 TFLOPS |
| Boost Clock | 2520 MHz+12% | 2250 MHz |
| ROPs | 176+38% | 128 |
| TMUs | 456+43% | 320 |
| L1 Cache | 14.3 MB+1330% | 1 MB |
| L2 Cache | 72 MB+1700% | 4 MB |
| Ray Tracing Cores | 114+43% | 80 |
Advanced Features (DLSS/FSR)
Both GPUs support Frame Generation technologies, but they achieve it differently. The GeForce RTX 4090 Laptop GPU uses DLSS 3 (AI-based) which is hardware-accelerated on Tensor Cores, often providing superior image quality. The Radeon RX 6900 XT utilizes FSR 3 & AFMF, which is more open but driver-based. Both can significantly boost FPS in supported titles.The GeForce RTX 4090 Laptop GPU 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 4090 Laptop GPU | Radeon RX 6900 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. Memory bandwidth: 576 GB/s (GeForce RTX 4090 Laptop GPU) vs 512 GB/s (Radeon RX 6900 XT) — a 12.5% advantage for the GeForce RTX 4090 Laptop GPU. Bus width: 256-bit vs 256-bit. L2 Cache: 72 MB (GeForce RTX 4090 Laptop GPU) vs 4 MB (Radeon RX 6900 XT) — the GeForce RTX 4090 Laptop GPU has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bandwidth | 576 GB/s+13% | 512 GB/s |
| Bus Width | 256-bit | 256-bit |
| L2 Cache | 72 MB+1700% | 4 MB |
Display & API Support
DirectX support: 12 Ultimate (GeForce RTX 4090 Laptop GPU) 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 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| DirectX | 12 Ultimate | 12 Ultimate |
| Vulkan | 1.3 | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4 | 4 |
Media & Encoding
Hardware encoder: NVENC (9th Gen) (GeForce RTX 4090 Laptop GPU) vs VCN 3.0 (Radeon RX 6900 XT). Decoder: NVDEC (6th Gen) vs VCN 3.0. Supported codecs: H.264,H.265,VP9,AV1 (GeForce RTX 4090 Laptop GPU) vs H.264,H.265/HEVC,AV1,VP9 (Radeon RX 6900 XT).
| Feature | GeForce RTX 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| Encoder | NVENC (9th Gen) | VCN 3.0 |
| Decoder | NVDEC (6th Gen) | VCN 3.0 |
| Codecs | H.264,H.265,VP9,AV1 | H.264,H.265/HEVC,AV1,VP9 |
Power & Dimensions
The GeForce RTX 4090 Laptop GPU draws 425W versus the Radeon RX 6900 XT's 300W — a 34.5% difference. The Radeon RX 6900 XT is more power-efficient. Recommended PSU: 650W (GeForce RTX 4090 Laptop GPU) vs 850W (Radeon RX 6900 XT). Power connectors: Mobile vs 2x 8-pin. Card length: 0mm vs 267mm, occupying 0 vs 2.5 slots. Typical load temperature: 80 vs 80°C.
| Feature | GeForce RTX 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| TDP | 425W | 300W-29% |
| Recommended PSU | 650W-24% | 850W |
| Power Connector | Mobile | 2x 8-pin |
| Length | 0mm | 267mm |
| Height | 0mm | 120mm |
| Slots | 0-100% | 2.5 |
| Temp (Load) | 80 | 80°C |
| Perf/Watt | 63.8 | 89.1+40% |
Value Analysis
The GeForce RTX 4090 Laptop GPU is the newer GPU (2023 vs 2020).
| Feature | GeForce RTX 4090 Laptop GPU | Radeon RX 6900 XT |
|---|---|---|
| MSRP | — | $999 |
| Avg Price (30d) | — | $385 |
| Codename | AD102 | Navi 21 |
| Release | December 28 2023 | October 28 2020 |
| Ranking | #14 | #35 |
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