GeForce RTX 3080 vs GeForce RTX 3090
The GeForce RTX 3090 is a real step up in speed — leading the GeForce RTX 3080 by roughly 11% in our performance index.
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GeForce RTX 3090 vs GeForce RTX 3080: In-Depth Breakdown
Performance: GeForce RTX 3090 vs GeForce RTX 3080
The GeForce RTX 3090 is noticeably faster, around 11% ahead of the GeForce RTX 3080. Both cards sit in the same broad class, well suited to 1440p. The GeForce RTX 3090 packs 10,496 CUDA cores versus 8,704 on the GeForce RTX 3080. The GeForce RTX 3090 also has more RT cores (82 vs 68) and more AI cores (328 vs 272), strengthening its ray-tracing and AI-upscaling performance.
Power & Efficiency
The GeForce RTX 3080 pulls less power (320W vs 350W), so it's the easier card to cool and the lighter load on your PSU. The faster GeForce RTX 3090 draws more overall but extracts more performance from each watt — plan for a sturdier power supply if you pick it.
VRAM & Future-Proofing
With 24GB against 10GB, the GeForce RTX 3090 has more headroom for 4K textures and memory-hungry creative/AI tasks where the GeForce RTX 3080's 10GB can fall short. The GeForce RTX 3090's memory is also faster — 936 GB/s versus 760 GB/s (384-bit vs 320-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Which should you buy: GeForce RTX 3080 or GeForce RTX 3090?
The GeForce RTX 3090 is the faster card by about 11%. 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 3090 better than the GeForce RTX 3080?
Which is better for 4K gaming, the GeForce RTX 3080 or the GeForce RTX 3090?
Does the GeForce RTX 3090 have enough VRAM advantage to matter?
Which is better for ray tracing, the GeForce RTX 3090 or the GeForce RTX 3080?
Which should you buy: GeForce RTX 3080 or GeForce RTX 3090?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3080 | GeForce RTX 3090 |
|---|---|---|
| Architecture | Ampere | Ampere |
| Process Node | Samsung 8nm | Samsung 8nm |
| CUDA Cores (CUDA Cores / CUDA Cores) | 8,704 | 10,496✓ |
| Ray Tracing Cores | 68 | 82✓ |
| Tensor / AI Cores | 272 | 328✓ |
Clock Speeds
| Specification | GeForce RTX 3080 | GeForce RTX 3090 |
|---|---|---|
| Base Clock | 1,440 MHz✓ | 1,395 MHz |
| Boost Clock | 1,710 MHz✓ | 1,695 MHz |
Memory
| Specification | GeForce RTX 3080 | GeForce RTX 3090 |
|---|---|---|
| VRAM Capacity | 10 GB | 24 GB✓ |
| Memory Type | GDDR6X | GDDR6X |
| Memory Bus | 320-bit | 384-bit✓ |
| Memory Speed | 19 Gbps | 19.5 Gbps✓ |
| Bandwidth | 760 GB/s | 936 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 3080 | GeForce RTX 3090 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| TDP | 320 W✓ | 350 W |
| Power Connectors | 1x 12-pin | 1x 12-pin |
| Released | Sep 2020 | Sep 2020 |
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