NVIDIA GeForce RTX 5070 SUPER vs NVIDIA GeForce RTX 3070 Ti
Transient-aware PSU requirements, ATX compliance, cable safety audit, and power efficiency comparison.
| Specification | NVIDIA GeForce RTX 5070 SUPER | NVIDIA GeForce RTX 3070 Ti |
|---|---|---|
| Performance Tier | High-End | High-End |
| Total Board Power (TBP) | 275W | 290W |
| Transient Peak (modeled) | 391W | 486W |
| Minimum Recommended PSU | 550W | 700W |
| PCIe Connector Required | 12v-2x6 | 8pin-x2 |
| Number of Connectors | 1 | 2 |
| ATX 3.1 Required | ✓ Yes | ✗ No |
| Daisy-Chain Safe | ✗ No | ✗ No |
| MSRP | $649 | $599 |
| Generation | Blackwell | Ampere |
PSU Requirement Breakdown
NVIDIA GeForce RTX 5070 SUPER
⚠ NVIDIA GeForce RTX 5070 SUPER 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 Ti
⚠ NVIDIA GeForce RTX 3070 Ti requires 2 separate 8-pin PCIe power cables. DO NOT daisy-chain — each cable must run directly from the PSU to the GPU.
Power Efficiency Verdict
NVIDIA GeForce RTX 5070 SUPER requires less PSU headroom per dollar spent. It needs 550W recommended at $649, versus 700W at $599 for the NVIDIA GeForce RTX 3070 Ti.
Note: NVIDIA GeForce RTX 5070 SUPER 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 SUPER?
NVIDIA GeForce RTX 5070 SUPER has a 275W TBP but can spike to 391W during transient loads. We recommend a minimum 550W 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 Ti?
NVIDIA GeForce RTX 3070 Ti has a 290W TBP and transient peak up to 486W. We recommend a minimum 700W ATX 3.1 PSU for stable operation.
Does NVIDIA GeForce RTX 5070 SUPER or NVIDIA GeForce RTX 3070 Ti need ATX 3.1?
NVIDIA GeForce RTX 5070 SUPER requires an ATX 3.1 PSU with a native 12V-2x6 connector. Do not use adapter cables. NVIDIA GeForce RTX 3070 Ti uses 8pin-x2 and does not require ATX 3.1.