GPU Comparison
Select up to 2 GPUs to analyze their pricing, performance, and specifications side-by-side.
Market Value Leader
Market comparison is currently pending while we verify the latest benchmarks for GeForce RTX 3080 Laptop and GeForce RTX 4090 Laptop.
On raw speed the GeForce RTX 4090 Laptop comes out dramatically faster — about 43% ahead of the GeForce RTX 3080 Laptop. The GeForce RTX 3080 Laptop is the cheaper option by $2,170 GBP.
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Comparable or lower specs
GeForce RTX 4090 Laptop vs GeForce RTX 3080 Laptop: In-Depth Breakdown
Performance: GeForce RTX 4090 Laptop vs GeForce RTX 3080 Laptop
The GeForce RTX 4090 Laptop is dramatically faster, around 43% ahead of the GeForce RTX 3080 Laptop. Both cards sit in the same broad class, well suited to 1440p. The GeForce RTX 4090 Laptop packs 9,728 CUDA cores versus 6,144 on the GeForce RTX 3080 Laptop.
Price & Value
The GeForce RTX 3080 Laptop currently lists from $1,630 GBP, $2,170 GBP less than the GeForce RTX 4090 Laptop at $3,800 GBP.
Memory & Bandwidth
The GeForce RTX 4090 Laptop's memory is faster — 576 GB/s versus 448 GB/s — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 4090 Laptop is roughly 2 years newer than the GeForce RTX 3080 Laptop (Ada Lovelace vs Ampere), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 3080 Laptop or GeForce RTX 4090 Laptop?
The GeForce RTX 4090 Laptop is the faster card by about 43%. 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 Laptop better than the GeForce RTX 3080 Laptop?
Which is better for 4K gaming, the GeForce RTX 3080 Laptop or the GeForce RTX 4090 Laptop?
Is the GeForce RTX 4090 Laptop worth the extra $2,170 GBP over the GeForce RTX 3080 Laptop?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 Laptop |
|---|---|---|
| Architecture | Ampere | Ada Lovelace |
| Process Node | Samsung 8nm | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 6,144 | 9,728✓ |
| Ray Tracing Cores | 48 | 76✓ |
| Tensor / AI Cores | 192 | 304✓ |
Clock Speeds
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 Laptop |
|---|---|---|
| Base Clock | 1,110 MHz | 1,455 MHz✓ |
| Boost Clock | 1,545 MHz | 2,040 MHz✓ |
Memory
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 Laptop |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR6 |
| Memory Bus | 256-bit | 256-bit |
| Memory Speed | 14 Gbps | 18 Gbps✓ |
| Bandwidth | 448 GB/s | 576 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 3080 Laptop | GeForce RTX 4090 Laptop |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 150 W | 150 W |
| Power Connectors | None | None |
| Released | Jan 2021 | Feb 2023 |