GeForce RTX 3080 vs GeForce RTX 5080
On raw speed the GeForce RTX 5080 comes out ahead: far and away the quicker card, about 91% ahead of the GeForce RTX 3080. That said, the GeForce RTX 3080 is the smarter buy on value — $680 EUR less for the performance on offer.
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GeForce RTX 5080 vs GeForce RTX 3080: In-Depth Breakdown
Performance: GeForce RTX 5080 vs GeForce RTX 3080
The GeForce RTX 5080 is dramatically faster, around 91% ahead of the GeForce RTX 3080. 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 is better matched to 1440p. The GeForce RTX 5080 packs 10,752 CUDA cores versus 8,704 on the GeForce RTX 3080.
Price & Value
The GeForce RTX 3080 currently lists from $629 EUR, $680 EUR less than the GeForce RTX 5080 at $1,309 EUR. Despite being slower, the GeForce RTX 3080 offers the better performance-per-dollar (~9% better value), so budget-focused buyers should weigh it carefully. The GeForce RTX 3080 is trading below its $699 EUR MSRP — a genuine deal. The GeForce RTX 5080 still sits about $310 EUR above its $999 EUR MSRP.
Power & Efficiency
On power, the GeForce RTX 3080 is the gentler choice at 320W versus 360W. The GeForce RTX 5080 is more efficient per watt because it's faster, but its higher 360W draw means more heat and a bigger PSU. Its more modern Blackwell architecture on a TSMC 4N process is part of why it does more with each watt.
VRAM & Future-Proofing
VRAM favors the GeForce RTX 5080 at 16GB versus 10GB on the GeForce RTX 3080 — that extra 6GB matters most at 4K, with high-res texture packs, and for content-creation/local-AI work. The GeForce RTX 5080's memory is also faster — 960 GB/s versus 760 GB/s (256-bit vs 320-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 5080 is roughly 5 years newer than the GeForce RTX 3080 (Blackwell vs Ampere), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 3080 or GeForce RTX 5080?
Choose the GeForce RTX 5080 if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce RTX 3080 stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 5080 better than the GeForce RTX 3080?
Which is better for 4K gaming, the GeForce RTX 3080 or the GeForce RTX 5080?
Is the GeForce RTX 5080 worth the extra $680 EUR over the GeForce RTX 3080?
Does the GeForce RTX 5080 have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 3080 or GeForce RTX 5080?
Video Benchmarks & Review
RTX 3080 vs RTX 4080 vs RTX 5080
Video Highlights
Curated gameplay footage and benchmarking review from MxBenchmarkPC on YouTube.
Editorial Review: What the Benchmarks Show
As analyzed by MxBenchmarkPC, the older Ampere-based RTX 3080 (10GB) is benchmarked against the newer Blackwell-based RTX 5080 (16GB). The RTX 5080 delivers a monumental performance leap, nearly doubling average frame rates at 4K resolution and providing massive memory bandwidth advantages.
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3080 | GeForce RTX 5080 |
|---|---|---|
| Architecture | Ampere | Blackwell |
| Process Node | Samsung 8nm | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 8,704 | 10,752✓ |
| Ray Tracing Cores | 68 | 84✓ |
| Tensor / AI Cores | 272 | 336✓ |
Clock Speeds
| Specification | GeForce RTX 3080 | GeForce RTX 5080 |
|---|---|---|
| Base Clock | 1,440 MHz | 2,295 MHz✓ |
| Boost Clock | 1,710 MHz | 2,617 MHz✓ |
Memory
| Specification | GeForce RTX 3080 | GeForce RTX 5080 |
|---|---|---|
| VRAM Capacity | 10 GB | 16 GB✓ |
| Memory Type | GDDR6X | GDDR7 |
| Memory Bus | 320-bit✓ | 256-bit |
| Memory Speed | 19 Gbps | 30 Gbps✓ |
| Bandwidth | 760 GB/s | 960 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 3080 | GeForce RTX 5080 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| TDP | 320 W✓ | 360 W |
| Power Connectors | 1x 12-pin | 1x 16-pin |
| Released | Sep 2020 | Jan 2025 |
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