GPU + ATX 3.1 PSU Compatibility & Transient Wattage Checker
Check whether your power supply and PC case can safely handle an RTX 5090, RTX 5080, RTX 5070 Ti, RTX 5070, RX 9070 XT, or RX 9070 — including ATX 3.1 / PCIe 5.1 transient excursion headroom and 12V-2x6 connector guidance.
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GPU + ATX 3.1 PSU Compatibility & Clearance Checker
Estimate power using GPU/CPU classes, a 95W allowance for other parts and an illustrative 30% margin. Reference dimensions do not verify your exact card, cable space or complete PC. Check the sourced rig rules before ordering.
Recommended ATX 3.1 PSU Tier: 850W (Native 12V-2x6 / PCIe 5.1)
Estimated Combined System Peak: 617W (360W GPU + 162W CPU + 95W Board/NVMe/Fans) · 30% Headroom Target: 850W
Connector Requirement: Check the exact PSU cable and GPU installation instructions. Cable bend space is a separate check and remains UNKNOWN here.
Case Clearance Check: ESTIMATE (+45mm length margin): 355mm usable case length minus ~310mm reference length. Width, slots and cable clearance are UNKNOWN.
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Inspect three PC rig proposals with incomplete verification, including all nine proposed parts and the unresolved compatibility checks.
Comparing graphics cards? Read our full Which Graphics Card Should You Buy in 2026? guide or our head-to-head RTX 5070 vs RX 9070 comparison.
2026 GPU Benchmarks Hierarchy · Research-Based · Not Lab-Tested
2026 Desktop GPU Tier List (1080p, 1440p & 4K)
Filter 12 desktop GPUs across Tier S, Tier A, Tier B, and Tier C by target resolution, architecture, and VRAM capacity. Frame-rate averages reference the published Tom's Hardware GPU Benchmarks Hierarchy alongside official NVIDIA, AMD, and Intel board power specifications.
| Tier & Rank | GPU Chip & Best Role | VRAM & Memory Bus | Published 1440p Ultra Consensus | Board Power & PSU Fit | Compare Retailers |
|---|---|---|---|---|---|
Tier S#01 4K Flagship | NVIDIA GeForce RTX 5090Blackwell · GB202 Uncompromised 4K & Path Tracing | 32GB VRAM32GB GDDR7 · 512-bit · 1,792 GB/s | Raster: 162.4 fps avg (Tom's Hierarchy) Ray Tracing: 118.5 fps avg (Tom's Hierarchy) | 575W TGP · 1× 16-pin (12V-2x6) ⚡ Min 1000W ATX 3.1 → | |
Tier S#02 4K High-Refresh | NVIDIA GeForce RTX 5080Blackwell · GB203 4K DLSS 4 & High-Refresh 1440p | 16GB VRAM16GB GDDR7 · 256-bit · 960 GB/s | Raster: 131.2 fps avg (Tom's Hierarchy) Ray Tracing: 79.4 fps avg (Tom's Hierarchy) | 360W TGP · 1× 16-pin (12V-2x6) ⚡ Min 850W ATX 3.1 → | |
Tier A#03 1440p Ultra / 4K | NVIDIA GeForce RTX 5070 TiBlackwell · GB203 Best for Ray Tracing & DLSS 4 | 16GB VRAM16GB GDDR7 · 256-bit · 896 GB/s | Raster: 116.8 fps avg (Tom's Hierarchy) Ray Tracing: 66.2 fps avg (Tom's Hierarchy) | 300W TGP · 1× 16-pin (12V-2x6) ⚡ Min 750W ATX 3.1 → | |
Tier A#04 1440p Ultra / 4K | AMD Radeon RX 9070 XTRDNA 4 · Navi 48 XT Top 1440p Raster Value Pick | 16GB VRAM16GB GDDR6 · 256-bit · 640 GB/s | Raster: 116.5 fps avg (Tom's Hierarchy) Ray Tracing: 55.5 fps avg (Tom's Hierarchy) | 304W TBP · 2–3× 8-pin PCIe ⚡ Min 750W ATX 3.1 → | |
Tier A#05 Efficient 1440p 16GB | AMD Radeon RX 9070RDNA 4 · Navi 48 XL Best Low-Power 16GB 1440p Card | 16GB VRAM16GB GDDR6 · 256-bit · 640 GB/s | Raster: 103.8 fps avg (Tom's Hierarchy) Ray Tracing: 48.2 fps avg (Tom's Hierarchy) | 220W TBP · 2× 8-pin PCIe ⚡ Min 650W ATX 3.1 → | |
Tier B#06 Mainstream 1440p | NVIDIA GeForce RTX 5070Blackwell · GB205 Best Midrange DLSS 4 Option | 12GB VRAM12GB GDDR7 · 192-bit · 672 GB/s | Raster: 100.8 fps avg (Tom's Hierarchy) Ray Tracing: 52.9 fps avg (Tom's Hierarchy) | 250W TGP · 1× 16-pin (12V-2x6) ⚡ Min 650W–750W → | |
Tier B#07 Previous-Gen 1440p | NVIDIA GeForce RTX 4070 SuperAda Lovelace · AD104 220W Drop-In 1440p Alternative | 12GB VRAM12GB GDDR6X · 192-bit · 504 GB/s | Raster: 96.4 fps avg (Tom's Hierarchy) Ray Tracing: 49.8 fps avg (Tom's Hierarchy) | 220W TGP · 1× 16-pin ⚡ Min 650W ATX 3.0+ → | |
Tier B#08 Previous-Gen 16GB | AMD Radeon RX 7800 XTRDNA 3 · Navi 32 Proven 16GB 1440p Raster Workhorse | 16GB VRAM16GB GDDR6 · 256-bit · 624 GB/s | Raster: 89.7 fps avg (Tom's Hierarchy) Ray Tracing: 36.1 fps avg (Tom's Hierarchy) | 263W TBP · 2× 8-pin PCIe ⚡ Min 700W → | |
Tier C#09 Budget 16GB / 1080p Ultra | AMD Radeon RX 9060 XT 16GBRDNA 4 · Navi 44 Best Budget 16GB Graphics Card | 16GB VRAM16GB GDDR6 · 128-bit · 320 GB/s | Raster: 68.6 fps avg (Tom's Hierarchy) Ray Tracing: 29.2 fps avg (Tom's Hierarchy) | 160W TBP · 1× 8-pin PCIe ⚡ Min 550W → | |
Tier C#10 1080p Ultra / DLSS 4 | NVIDIA GeForce RTX 5060 Ti 16GBBlackwell · GB206 Compact 16GB Card with DLSS 4 | 16GB VRAM16GB GDDR7 · 128-bit · 448 GB/s | Raster: 71.2 fps avg (Tom's Hierarchy) Ray Tracing: 36.8 fps avg (Tom's Hierarchy) | 180W TGP · 1× 8-pin or 16-pin ⚡ Min 600W → | |
Tier C#11 Entry 1080p Value | Intel Arc B580 12GBBattlemage · BMG-G21 Entry 1080p / Light 1440p with 12GB | 12GB VRAM12GB GDDR6 · 192-bit · 456 GB/s | Raster: 56.4 fps avg (Tom's Hierarchy) Ray Tracing: 24.5 fps avg (Tom's Hierarchy) | 190W TBP · 1–2× 8-pin PCIe ⚡ Min 600W → | |
Tier C#12 Entry 1080p 16GB | AMD Radeon RX 7600 XT 16GBRDNA 3 · Navi 33 1080p Card with 16GB VRAM Buffer | 16GB VRAM16GB GDDR6 · 128-bit · 288 GB/s | Raster: 51.8 fps avg (Tom's Hierarchy) Ray Tracing: 19.4 fps avg (Tom's Hierarchy) | 190W TBP · 2× 8-pin PCIe ⚡ Min 600W → |
Methodology & Source Attribution: 1440p Ultra raster and ray-tracing averages are cited from the published Tom's Hardware GPU Benchmarks Hierarchy; TGP/TBP, connector types, and PSU ratings come from official NVIDIA GeForce, AMD Radeon, and Intel Arc datasheets. Research-based · not lab-tested.