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 5080 is available. Benchmarks for other models are currently being processed.
The GeForce RTX 5080 is dramatically faster than the GeForce RTX 4090 Laptop, leading by roughly 68% in our performance index. The GeForce RTX 5080 is the cheaper option by $2,700 GBP.
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Comparable or lower specs
GeForce RTX 5080 vs GeForce RTX 4090 Laptop: In-Depth Breakdown
Performance: GeForce RTX 5080 vs GeForce RTX 4090 Laptop
The GeForce RTX 5080 is dramatically faster, around 68% ahead of the GeForce RTX 4090 Laptop. That gap is enough to move it up a tier: the GeForce RTX 5080 is comfortable at 4K and high-refresh 1440p, while the GeForce RTX 4090 Laptop is better matched to 1440p. The GeForce RTX 5080 packs 10,752 CUDA cores versus 9,728 on the GeForce RTX 4090 Laptop.
Price & Value
Right now the GeForce RTX 5080 starts at $1,100 GBP against $3,800 GBP for the GeForce RTX 4090 Laptop. The GeForce RTX 5080 still sits about $101 GBP above its $999 GBP MSRP.
Power & Efficiency
The GeForce RTX 4090 Laptop draws just 150W versus 360W for the GeForce RTX 5080, and it also delivers more performance per watt — so it runs cooler and quieter and needs less PSU headroom.
Memory & Bandwidth
The GeForce RTX 5080's memory is faster — 960 GB/s versus 576 GB/s — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 5080 is roughly 2 years newer than the GeForce RTX 4090 Laptop (Blackwell vs Ada Lovelace), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 4090 Laptop or GeForce RTX 5080?
The GeForce RTX 5080 is the faster card by about 68%. 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 5080 better than the GeForce RTX 4090 Laptop?
Which is better for 4K gaming, the GeForce RTX 4090 Laptop or the GeForce RTX 5080?
Is the GeForce RTX 4090 Laptop worth the extra $2,700 GBP over the GeForce RTX 5080?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 4090 Laptop | GeForce RTX 5080 |
|---|---|---|
| Architecture | Ada Lovelace | Blackwell |
| Process Node | TSMC 4N | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 9,728 | 10,752✓ |
| Ray Tracing Cores | 76 | 84✓ |
| Tensor / AI Cores | 304 | 336✓ |
Clock Speeds
| Specification | GeForce RTX 4090 Laptop | GeForce RTX 5080 |
|---|---|---|
| Base Clock | 1,455 MHz | 2,295 MHz✓ |
| Boost Clock | 2,040 MHz | 2,617 MHz✓ |
Memory
| Specification | GeForce RTX 4090 Laptop | GeForce RTX 5080 |
|---|---|---|
| VRAM Capacity | 16 GB | 16 GB |
| Memory Type | GDDR6 | GDDR7 |
| Memory Bus | 256-bit | 256-bit |
| Memory Speed | 18 Gbps | 30 Gbps✓ |
| Bandwidth | 576 GB/s | 960 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 4090 Laptop | GeForce RTX 5080 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| TDP | 150 W✓ | 360 W |
| Power Connectors | None | 1x 16-pin |
| Released | Feb 2023 | Jan 2025 |
Related Reading
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Can you run Cyberpunk 2077 with full Path Tracing while streaming? We put the RTX 5070 Ti to the ultimate test using DLSS 4.5.
The Unrivaled Apex: NVIDIA GeForce RTX 5090 Deep Dive
The RTX 5090 redefines what is possible in consumer graphics. We explore why the Blackwell flagship remains in a league of its own.
The 1440p Goldilocks: NVIDIA GeForce RTX 5070 Ti Review
Is the RTX 5070 Ti the perfect middle ground? We analyze the real-world performance of NVIDIA's 16GB Blackwell contender.