GeForce RTX 4080 Mobile vs GeForce RTX 3090
GeForce RTX 4080 Mobile
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GeForce RTX 3090
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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 4080 Mobile
Performance Per Dollar GeForce RTX 3090
Performance Comparison
About G3D Mark🏆 Chipversus Verdict
🚀 Performance Leadership
The GeForce RTX 3090 is the superior choice for raw performance. It leads with a 7.2% higher G3D Mark score and 100% more VRAM (24 GB vs 12 GB). This advantage makes it significantly better for higher resolutions (1440p/4K) and graphic-intensive titles compared to the GeForce RTX 4080 Mobile.
| Insight | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| Performance | ❌Lower raw frame rates (-7.2%) | ✅Leading raw performance (+7.2%) |
| Longevity | 🏆Elite Architecture (Ada Lovelace (2022−2024) / 4nm) | 🔮Strong Longevity (Ampere (2020−2025) / 8nm) |
| Ecosystem | ✨ DLSS 3/4 + Frame Gen Support | ✨ DLSS 2 Upscaling |
| VRAM | 🎮 High Capacity (12 GB) | 🎮 High Capacity (24 GB) |
| Efficiency | 💡 Excellent Perf/Watt | ⚡ Higher Power Consumption |
| Case Fit | — | Standard Size (312mm) |
💎 Value Proposition
While current pricing data is unavailable, the GeForce RTX 3090 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 4080 Mobile and GeForce RTX 3090
GeForce RTX 4080 Mobile
The GeForce RTX 4080 Mobile is manufactured by NVIDIA. It was released in January 3 2023. It features the Ada Lovelace architecture. The core clock ranges from 1290 MHz to 2010 MHz. It has 7424 shading units. The thermal design power (TDP) is 150W. Manufactured using 4 nm process technology. It features 58 dedicated ray tracing cores for enhanced lighting effects. G3D Mark benchmark score: 24,805 points.
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.
Graphics Performance
In G3D Mark, the GeForce RTX 4080 Mobile scores 24,805 versus the GeForce RTX 3090's 26,594 — the GeForce RTX 3090 leads by 7.2%. The GeForce RTX 4080 Mobile is built on Ada Lovelace while the GeForce RTX 3090 uses Ampere, both on 4 nm vs 8 nm. Shader units: 7,424 (GeForce RTX 4080 Mobile) vs 10,496 (GeForce RTX 3090). Raw compute: 24.72 TFLOPS (GeForce RTX 4080 Mobile) vs 35.58 TFLOPS (GeForce RTX 3090). Boost clocks: 2010 MHz vs 1695 MHz. Ray tracing: 58 RT cores (GeForce RTX 4080 Mobile) vs 82 (GeForce RTX 3090) with 232 Tensor cores vs 328.
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| G3D Mark Score | 24,805 | 26,594+7% |
| Architecture | Ada Lovelace | Ampere |
| Process Node | 4 nm | 8 nm |
| Shading Units | 7424 | 10496+41% |
| Compute (TFLOPS) | 24.72 TFLOPS | 35.58 TFLOPS+44% |
| Boost Clock | 2010 MHz+19% | 1695 MHz |
| ROPs | 80 | 112+40% |
| TMUs | 232 | 328+41% |
| L1 Cache | 7.3 MB | 10.3 MB+41% |
| L2 Cache | 48 MB+700% | 6 MB |
| Ray Tracing Cores | 58 | 82+41% |
| Tensor Cores | 232 | 328+41% |
Advanced Features (DLSS/FSR)
A critical advantage for the GeForce RTX 4080 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.The GeForce RTX 4080 Mobile supports the newer DLSS 3.5 (including Frame Gen/Ray Reconstruction), whereas the GeForce RTX 3090 is capped at DLSS 2.0.
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| Upscaling Tech | DLSS 3.5 | DLSS 2.0 |
| Frame Generation | DLSS 3.0 (Native) | FSR 3 / AFMF (Compatible) |
| Ray Reconstruction | Yes (DLSS 3.5) | No |
| Low Latency | NVIDIA Reflex | NVIDIA Reflex |
Video Memory (VRAM)
The GeForce RTX 4080 Mobile comes with 12 GB of VRAM, while the GeForce RTX 3090 has 24 GB. The GeForce RTX 3090 offers 100% more capacity, crucial for higher resolutions and texture-heavy games. Memory bandwidth: 432 GB/s (GeForce RTX 4080 Mobile) vs 936 GB/s (GeForce RTX 3090) — a 116.7% advantage for the GeForce RTX 3090. Bus width: 192-bit vs 384-bit. L2 Cache: 48 MB (GeForce RTX 4080 Mobile) vs 6 MB (GeForce RTX 3090) — the GeForce RTX 4080 Mobile has significantly larger on-die cache to reduce VRAM reliance.
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| VRAM Capacity | 12 GB | 24 GB+100% |
| Memory Type | GDDR6 | GDDR6X |
| Memory Bandwidth | 432 GB/s | 936 GB/s+117% |
| Bus Width | 192-bit | 384-bit+100% |
| L2 Cache | 48 MB+700% | 6 MB |
Display & API Support
DirectX support: 12.2 (GeForce RTX 4080 Mobile) vs 12 Ultimate (GeForce RTX 3090). Vulkan: 1.3 vs 1.4. OpenGL: 4.6 vs 4.6. Maximum simultaneous displays: 1 vs 4.
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| DirectX | 12.2+2% | 12 Ultimate |
| Vulkan | 1.3 | 1.4+8% |
| OpenGL | 4.6 | 4.6 |
| Max Displays | 1 | 4+300% |
Media & Encoding
Hardware encoder: 8th Gen NVENC (GeForce RTX 4080 Mobile) vs NVENC 7th gen (GeForce RTX 3090). Decoder: 5th Gen NVDEC vs NVDEC 5th gen. Supported codecs: MPEG-2,H.264,HEVC,VP9,AV1 (GeForce RTX 4080 Mobile) vs H.264,H.265/HEVC,AV1 (GeForce RTX 3090).
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| Encoder | 8th Gen NVENC | NVENC 7th gen |
| Decoder | 5th Gen NVDEC | NVDEC 5th gen |
| Codecs | MPEG-2,H.264,HEVC,VP9,AV1 | H.264,H.265/HEVC,AV1 |
Power & Dimensions
The GeForce RTX 4080 Mobile draws 150W versus the GeForce RTX 3090's 350W — a 80% difference. The GeForce RTX 4080 Mobile is more power-efficient. Recommended PSU: 650W (GeForce RTX 4080 Mobile) vs 750W (GeForce RTX 3090). Power connectors: Mobile vs 2x 8-pin. Card length: 0mm vs 312mm, occupying 0 vs 3 slots. Typical load temperature: 80°C vs 85°C.
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| TDP | 150W-57% | 350W |
| Recommended PSU | 650W-13% | 750W |
| Power Connector | Mobile | 2x 8-pin |
| Length | 0mm | 312mm |
| Height | 0mm | 140mm |
| Slots | 0-100% | 3 |
| Temp (Load) | 80°C-6% | 85°C |
| Perf/Watt | 165.4+118% | 76.0 |
Value Analysis
The GeForce RTX 4080 Mobile is the newer GPU (2023 vs 2020).
| Feature | GeForce RTX 4080 Mobile | GeForce RTX 3090 |
|---|---|---|
| MSRP | — | $1499 |
| Avg Price (30d) | — | $900 |
| Codename | AD104 | GA102 |
| Release | January 3 2023 | September 1 2020 |
| Ranking | #43 | #37 |
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