GeForce RTX 3090 vs GeForce RTX 4090 Mobile
GeForce RTX 3090
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GeForce RTX 4090 Mobile
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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 3090
Performance Per Dollar GeForce RTX 4090 Mobile
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce RTX 4090 Mobile is the superior choice for raw performance. It leads with a 1.7% higher G3D Mark score. However, the GeForce RTX 3090 offers more VRAM, which may be beneficial for texture-heavy scenarios at higher resolutions.
| Insight | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| Performance | ❌Lower raw frame rates (-1.7%) | ✅Leading raw performance (+1.7%) |
| Longevity | 🔮Strong Longevity (Ampere (2020−2025) / 8nm) | 🏆Elite Architecture (Ada Lovelace (2022−2024) / 4nm) |
| Ecosystem | ✨ DLSS 2 Upscaling | ✨ DLSS 3/4 + Frame Gen Support |
| VRAM | 🎮 High Capacity (24 GB) | 🎮 High Capacity (16 GB) |
| Efficiency | ⚡ Higher Power Consumption | 💡 Excellent Perf/Watt |
| Case Fit | Standard Size (312mm) | — |
💎 Value Proposition
While current pricing data is unavailable, the GeForce RTX 4090 Mobile 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 3090 and GeForce RTX 4090 Mobile
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.
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.
Graphics Performance
The GeForce RTX 3090 scores 26,594 and the GeForce RTX 4090 Mobile reaches 27,048 in the G3D Mark benchmark — just a 1.7% difference, making them near-identical in rasterization performance. The GeForce RTX 3090 is built on Ampere while the GeForce RTX 4090 Mobile uses Ada Lovelace, both on 8 nm vs 4 nm. Shader units: 10,496 (GeForce RTX 3090) vs 9,728 (GeForce RTX 4090 Mobile). Raw compute: 35.58 TFLOPS (GeForce RTX 3090) vs 32.98 TFLOPS (GeForce RTX 4090 Mobile). Boost clocks: 1695 MHz vs 1695 MHz. Ray tracing: 82 RT cores (GeForce RTX 3090) vs 76 (GeForce RTX 4090 Mobile) with 328 Tensor cores vs 304.
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| G3D Mark Score | 26,594 | 27,048+2% |
| Architecture | Ampere | Ada Lovelace |
| Process Node | 8 nm | 4 nm |
| Shading Units | 10496+8% | 9728 |
| Compute (TFLOPS) | 35.58 TFLOPS+8% | 32.98 TFLOPS |
| Boost Clock | 1695 MHz | 1695 MHz |
| ROPs | 112 | 112 |
| TMUs | 328+8% | 304 |
| L1 Cache | 10.3 MB+8% | 9.5 MB |
| L2 Cache | 6 MB | 64 MB+967% |
| Ray Tracing Cores | 82+8% | 76 |
| Tensor Cores | 328+8% | 304 |
Advanced Features (DLSS/FSR)
A critical advantage for the GeForce RTX 4090 Mobile is support for DLSS 3 Frame Gen. This allows it to generate entire frames using AI/Algorithms, essentially doubling the frame rate in CPU-bound scenarios or heavy ray-tracing titles. The GeForce RTX 3090 lacks specific hardware/driver support for this native frame generation tier.
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| Upscaling Tech | DLSS 2.0 | DLSS 3.5 |
| Frame Generation | FSR 3 / AFMF (Compatible) | DLSS 3.0 (Native) |
| Ray Reconstruction | No | Yes (DLSS 3.5) |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
The GeForce RTX 3090 comes with 24 GB of VRAM, while the GeForce RTX 4090 Mobile has 16 GB. The GeForce RTX 3090 offers 50% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 936 GB/s (GeForce RTX 3090) vs 576 GB/s (GeForce RTX 4090 Mobile) — a 62.5% advantage for the GeForce RTX 3090. Bus width: 384-bit vs 256-bit. L2 Cache: 6 MB (GeForce RTX 3090) vs 64 MB (GeForce RTX 4090 Mobile) — the GeForce RTX 4090 Mobile has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| VRAM Capacity | 24 GB+50% | 16 GB |
| Memory Type | GDDR6X | GDDR6 |
| Memory Bandwidth | 936 GB/s+63% | 576 GB/s |
| Bus Width | 384-bit+50% | 256-bit |
| L2 Cache | 6 MB | 64 MB+967% |
Display & API Support
DirectX support: 12 Ultimate (GeForce RTX 3090) vs 12.2 (GeForce RTX 4090 Mobile). Vulkan: 1.4 vs 1.3. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 4 vs 1.
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| DirectX | 12 Ultimate | 12.2+2% |
| Vulkan | 1.4+8% | 1.3 |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 4+300% | 1 |
Media & Encoding
Hardware encoder: NVENC 7th gen (GeForce RTX 3090) vs 8th Gen NVENC (GeForce RTX 4090 Mobile). Decoder: NVDEC 5th gen vs 5th Gen NVDEC. Supported codecs: H.264,H.265/HEVC,AV1 (GeForce RTX 3090) vs MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4090 Mobile).
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| Encoder | NVENC 7th gen | 8th Gen NVENC |
| Decoder | NVDEC 5th gen | 5th Gen NVDEC |
| Codecs | H.264,H.265/HEVC,AV1 | MPEG-2,H.264,HEVC,VP9,AV1 |
Power & Dimensions
The GeForce RTX 3090 draws 350W versus the GeForce RTX 4090 Mobile's 120W — a 97.9% difference. The GeForce RTX 4090 Mobile is more power-efficient. Recommended PSU: 750W (GeForce RTX 3090) vs 650W (GeForce RTX 4090 Mobile). Power connectors: 2x 8-pin vs Mobile. Card length: 312mm vs 0mm, occupying 3 vs 0 slots. Typical load temperature: 85°C vs 80°C.
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| TDP | 350W | 120W-66% |
| Recommended PSU | 750W | 650W-13% |
| Power Connector | 2x 8-pin | Mobile |
| Length | 312mm | 0mm |
| Height | 140mm | 0mm |
| Slots | 3 | 0-100% |
| Temp (Load) | 85°C | 80°C-6% |
| Perf/Watt | 76.0 | 225.4+197% |
Value Analysis
The GeForce RTX 4090 Mobile is the newer GPU (2023 vs 2020).
| Feature | GeForce RTX 3090 | GeForce RTX 4090 Mobile |
|---|---|---|
| MSRP | $1499 | — |
| Avg Price (30d) | $900 | — |
| Codename | GA102 | AD103 |
| Release | September 1 2020 | January 3 2023 |
| Ranking | #37 | #30 |
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