GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Only verified data for GeForce RTX 4090 is available. Benchmarks for other models are currently being processed.
The GeForce RTX 4090 is dramatically faster than the GeForce RTX 3080 Laptop, leading by roughly 157% in our performance index.
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Comparable or lower specs
GeForce RTX 4090 vs GeForce RTX 3080 Laptop: In-Depth Breakdown
Performance: GeForce RTX 4090 vs GeForce RTX 3080 Laptop
The GeForce RTX 4090 is dramatically faster, around 157% ahead of the GeForce RTX 3080 Laptop. That gap is enough to move it up a tier: the GeForce RTX 4090 is comfortable at 4K and high-refresh 1440p, while the GeForce RTX 3080 Laptop is better matched to 1440p. The GeForce RTX 4090 packs 16,384 CUDA cores versus 6,144 on the GeForce RTX 3080 Laptop.
Power & Efficiency
The GeForce RTX 3080 Laptop draws just 150W versus 450W for the GeForce RTX 4090, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom.
VRAM & Future-Proofing
With 24GB against 16GB, the GeForce RTX 4090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 3080 Laptop's 16GB can fall short. The GeForce RTX 4090's memory is also faster — 1,008 GB/s versus 448 GB/s (384-bit vs 256-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: GeForce RTX 3080 Laptop or GeForce RTX 4090?
The GeForce RTX 4090 is the faster card by about 157%. With live pricing limited for this pair, base your decision on the spec differences above — particularly VRAM and power draw — and check current stock before buying.
Frequently Asked Questions
Is the GeForce RTX 4090 better than the GeForce RTX 3080 Laptop?
Which is better for 4K gaming, the GeForce RTX 3080 Laptop or the GeForce RTX 4090?
Does the GeForce RTX 4090 have enough VRAM advantage to matter?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 |
|---|---|---|
| Architecture | Ampere | Ada Lovelace |
| Process Node | Samsung 8nm | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 6,144 | 16,384✓ |
| Ray Tracing Cores | 48 | 128✓ |
| Tensor / AI Cores | 192 | 512✓ |
Clock Speeds
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 |
|---|---|---|
| Base Clock | 1,110 MHz | 2,235 MHz✓ |
| Boost Clock | 1,545 MHz | 2,520 MHz✓ |
Memory
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 |
|---|---|---|
| VRAM Capacity | 16 GB | 24 GB✓ |
| Memory Type | GDDR6 | GDDR6X |
| Memory Bus | 256-bit | 384-bit✓ |
| Memory Speed | 14 Gbps | 21 Gbps✓ |
| Bandwidth | 448 GB/s | 1,008 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 150 W✓ | 450 W |
| Power Connectors | None | 1x 16-pin |
| Released | Jan 2021 | Sep 2022 |