GeForce RTX 3090 vs GeForce RTX 5090
The GeForce RTX 5090 pulls ahead here — in a different league, about 156% ahead of the GeForce RTX 3090. But the GeForce RTX 3090 is the better value, undercutting it by $4,500 CAD for the performance you get.
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Comparable or lower specs
GeForce RTX 5090 vs GeForce RTX 3090: In-Depth Breakdown
Performance: GeForce RTX 5090 vs GeForce RTX 3090
The GeForce RTX 5090 is dramatically faster, around 156% ahead of the GeForce RTX 3090. That gap is enough to move it up a tier: the GeForce RTX 5090 is comfortable at 4K and high-refresh 1440p, while the GeForce RTX 3090 is better matched to 1440p. The GeForce RTX 5090 packs 21,760 CUDA cores versus 10,496 on the GeForce RTX 3090.
Price & Value
Pricing has the GeForce RTX 3090 at $800 CAD, $4,500 CAD under the GeForce RTX 5090's $5,300 CAD. Despite being slower, the GeForce RTX 3090 offers the better performance-per-dollar (~158% better value), so budget-focused buyers should weigh it carefully. The GeForce RTX 3090 is trading below its $1,499 CAD MSRP — a genuine deal. The GeForce RTX 5090 still sits about $3,301 CAD above its $1,999 CAD MSRP.
Power & Efficiency
At 350W vs 575W, the GeForce RTX 3090 is the gentler load on your system. The GeForce RTX 5090's extra power draw buys more performance per watt, not just more heat — worth it if your PSU has the headroom. Its more modern Blackwell architecture on a TSMC 4N process is part of why it does more with each watt.
VRAM & Future-Proofing
The GeForce RTX 5090 carries 32GB versus 24GB on the GeForce RTX 3090. The extra 8GB helps at 4K, with high-resolution texture packs, and for content-creation or local-AI workloads that exhaust smaller buffers. The GeForce RTX 5090's memory is also faster — 1,792 GB/s versus 936 GB/s (512-bit vs 384-bit bus) — which helps feed the GPU at 4K and with heavy textures.
Generation & Longevity
The GeForce RTX 5090 is roughly 5 years newer than the GeForce RTX 3090 (Blackwell vs Ampere), so it generally benefits from a more modern architecture and longer driver-support runway.
Which should you buy: GeForce RTX 3090 or GeForce RTX 5090?
Choose the GeForce RTX 5090 if you want the most performance and can absorb the higher price. If you're optimizing for value, the GeForce RTX 3090 stretches your money further for only slightly lower performance.
Frequently Asked Questions
Is the GeForce RTX 5090 better than the GeForce RTX 3090?
Which is better for 4K gaming, the GeForce RTX 3090 or the GeForce RTX 5090?
Is the GeForce RTX 5090 worth the extra $4,500 CAD over the GeForce RTX 3090?
Does the GeForce RTX 5090 have enough VRAM advantage to matter?
Which should you buy: GeForce RTX 3090 or GeForce RTX 5090?
Technical Specifications Comparison
Architecture & Cores
| Specification | GeForce RTX 3090 | GeForce RTX 5090 |
|---|---|---|
| Architecture | Ampere | Blackwell |
| Process Node | Samsung 8nm | TSMC 4N |
| CUDA Cores (CUDA Cores / CUDA Cores) | 10,496 | 21,760✓ |
| Ray Tracing Cores | 82 | 170✓ |
| Tensor / AI Cores | 328 | 680✓ |
Clock Speeds
| Specification | GeForce RTX 3090 | GeForce RTX 5090 |
|---|---|---|
| Base Clock | 1,395 MHz | 2,010 MHz✓ |
| Boost Clock | 1,695 MHz | 2,407 MHz✓ |
Memory
| Specification | GeForce RTX 3090 | GeForce RTX 5090 |
|---|---|---|
| VRAM Capacity | 24 GB | 32 GB✓ |
| Memory Type | GDDR6X | GDDR7 |
| Memory Bus | 384-bit | 512-bit✓ |
| Memory Speed | 19.5 Gbps | 28 Gbps✓ |
| Bandwidth | 936 GB/s | 1,792 GB/s✓ |
Connectivity & Power
| Specification | GeForce RTX 3090 | GeForce RTX 5090 |
|---|---|---|
| Interface | PCIe 4.0 x16 | PCIe 5.0 x16 |
| TDP | 350 W✓ | 575 W |
| Power Connectors | 1x 12-pin | 1x 16-pin |
| Released | Sep 2020 | Jan 2025 |
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