GeForce RTX 3080 12GB vs GeForce RTX 5080
Performance-wise the GeForce RTX 5080 is out front, dramatically faster, roughly 81% up on the GeForce RTX 3080 12GB. It is also the stronger value pick here, so it's the easy recommendation if your budget allows.
Maximum Capacity Reached. Remove a model to add another. (2/2)
GeForce RTX 5080 vs GeForce RTX 3080 12GB: In-Depth Breakdown
Performance: GeForce RTX 5080 vs GeForce RTX 3080 12GB
The GeForce RTX 5080 is dramatically faster, around 81% ahead of the GeForce RTX 3080 12GB. 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 3080 12GB is better matched to 1440p. The GeForce RTX 5080 packs 10,752 CUDA cores versus 8,960 on the GeForce RTX 3080 12GB.
Price & Value
Right now the GeForce RTX 3080 12GB starts at $1,070 GBP against $1,220 GBP for the GeForce RTX 5080. Because it's both faster and competitively priced, the GeForce RTX 5080 wins on performance-per-dollar by about 59%. The GeForce RTX 3080 12GB still sits about $271 GBP above its $799 GBP MSRP. The GeForce RTX 5080 still sits about $221 GBP above its $999 GBP MSRP.
VRAM & Future-Proofing
The GeForce RTX 5080's 16GB (vs 12GB on the GeForce RTX 3080 12GB) gives it more room for 4K textures and memory-hungry creative or AI workloads.
Generation & Longevity
The GeForce RTX 5080 is roughly 3 years newer than the GeForce RTX 3080 12GB (Blackwell vs Ampere), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 3080 12GB or GeForce RTX 5080?
The GeForce RTX 5080 is the all-round winner here — it's faster and the better value, so buy it if it fits your budget. Only consider the GeForce RTX 3080 12GB if you find it at a steep discount.
Frequently Asked Questions
Is the GeForce RTX 5080 better than the GeForce RTX 3080 12GB?
Which is better for 4K gaming, the GeForce RTX 3080 12GB or the GeForce RTX 5080?
Is the GeForce RTX 5080 worth the extra $150 GBP over the GeForce RTX 3080 12GB?
Does the GeForce RTX 5080 have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 3080 12GB or GeForce RTX 5080?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3080 12GB | GeForce RTX 5080 |
|---|---|---|
| Architecture | Ampere | Blackwell |
| Process Node | Samsung 8nm | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 8,960 | 10,752✓ |
| Ray Tracing Cores | — | 84 |
| Tensor / AI Cores | — | 336 |
Clock Speeds
| Specification | GeForce RTX 3080 12GB | GeForce RTX 5080 |
|---|---|---|
| Base Clock | 1,440 MHz | 2,295 MHz✓ |
| Boost Clock | 1,710 MHz | 2,617 MHz✓ |
Memory
| Specification | GeForce RTX 3080 12GB | GeForce RTX 5080 |
|---|---|---|
| VRAM Capacity | 12 GB | 16 GB✓ |
| Memory Type | GDDR6X | GDDR7 |
| Memory Bus | 384-bit✓ | 256-bit |
| Memory Speed | 19 Gbps | 30 Gbps✓ |
| Bandwidth | 912 GB/s | 960 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 3080 12GB | GeForce RTX 5080 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| TDP | 350 W✓ | 360 W |
| Power Connectors | 2x 8-pin | 1x 16-pin |
| Released | Jan 2022 | Jan 2025 |
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