NVIDIA GeForce RTX 5070 vs NVIDIA GeForce RTX 3070
Transient-aware PSU requirements, ATX compliance, cable safety audit, and power efficiency comparison.
| Specification | NVIDIA GeForce RTX 5070 | NVIDIA GeForce RTX 3070 |
|---|---|---|
| Performance Tier | High-End | High-End |
| Total Board Power (TBP) | 250W | 220W |
| Transient Peak (modeled) | 341W | 361W |
| Minimum Recommended PSU | 500W | 500W |
| PCIe Connector Required | 12v-2x6 | 8pin-x2 |
| Number of Connectors | 1 | 2 |
| ATX 3.1 Required | ✓ Yes | ✗ No |
| Daisy-Chain Safe | ✗ No | ✓ Yes |
| MSRP | $549 | $499 |
| Generation | Blackwell | Ampere |
PSU Requirement Breakdown
NVIDIA GeForce RTX 5070
⚠ NVIDIA GeForce RTX 5070 requires an ATX 3.1 PSU with a native 12V-2x6 cable. DO NOT use adapter cables from older 8-pin connectors. If your PSU lacks a native 12V-2x6 port, you must upgrade your PSU.
NVIDIA GeForce RTX 3070
Power Efficiency Verdict
NVIDIA GeForce RTX 5070 requires less PSU headroom per dollar spent. It needs 500W recommended at $549, versus 500W at $499 for the NVIDIA GeForce RTX 3070.
Note: NVIDIA GeForce RTX 5070 requires an ATX 3.1 PSU with a native 12V-2x6 cable — factor in a possible PSU upgrade cost if you currently own an ATX 2.x unit.
Frequently Asked Questions
Which PSU do I need for NVIDIA GeForce RTX 5070?
NVIDIA GeForce RTX 5070 has a 250W TBP but can spike to 341W during transient loads. We recommend a minimum 500W ATX 3.1 PSU with a native 12V-2x6 connector for safe operation with headroom.
Which PSU do I need for NVIDIA GeForce RTX 3070?
NVIDIA GeForce RTX 3070 has a 220W TBP and transient peak up to 361W. We recommend a minimum 500W ATX 3.1 PSU for stable operation.
Does NVIDIA GeForce RTX 5070 or NVIDIA GeForce RTX 3070 need ATX 3.1?
NVIDIA GeForce RTX 5070 requires an ATX 3.1 PSU with a native 12V-2x6 connector. Do not use adapter cables. NVIDIA GeForce RTX 3070 uses 8pin-x2 and does not require ATX 3.1.