HomeGPU ComparisonsNVIDIA GeForce RTX 3070 Ti vs NVIDIA GeForce RTX 3070
Power Supply Comparison

NVIDIA GeForce RTX 3070 Ti vs NVIDIA GeForce RTX 3070

Transient-aware PSU requirements, ATX compliance, cable safety audit, and power efficiency comparison.

SpecificationNVIDIA GeForce RTX 3070 TiNVIDIA GeForce RTX 3070
Performance TierHigh-EndHigh-End
Total Board Power (TBP)290W220W
Transient Peak (modeled)486W361W
Minimum Recommended PSU700W500W
PCIe Connector Required8pin-x28pin-x2
Number of Connectors22
ATX 3.1 Required✗ No✗ No
Daisy-Chain Safe✗ No✓ Yes
MSRP$599$499
GenerationAmpereAmpere

PSU Requirement Breakdown

NVIDIA

NVIDIA GeForce RTX 3070 Ti

Sustained Draw341W
Transient Peak486W
Min PSU Required700W
Cable Safety⚠ Warning

⚠ 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.

NVIDIA

NVIDIA GeForce RTX 3070

Sustained Draw291W
Transient Peak361W
Min PSU Required500W
Cable Safety✓ Safe

Power Efficiency Verdict

NVIDIA GeForce RTX 3070 requires less PSU headroom per dollar spent. It needs 500W recommended at $499, versus 700W at $599 for the NVIDIA GeForce RTX 3070 Ti.

Frequently Asked Questions

Which PSU do I need for NVIDIA GeForce RTX 3070 Ti?

NVIDIA GeForce RTX 3070 Ti has a 290W TBP but can spike to 486W during transient loads. We recommend a minimum 700W ATX 3.1 PSU 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 3070 Ti or NVIDIA GeForce RTX 3070 need ATX 3.1?

NVIDIA GeForce RTX 3070 Ti uses a standard 8pin-x2 connector and does not strictly require ATX 3.1, though an ATX 3.x PSU is still recommended for transient headroom. NVIDIA GeForce RTX 3070 uses 8pin-x2 and does not require ATX 3.1.

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