PartVerdict

NVIDIA · Upgrade guide

Will the GeForce RTX 4070 fit and work in your PC?

Everything you need before you buy a GeForce RTX 4070 as an upgrade: the power supply, the power connector, whether it fits your case, and which CPUs won't hold it back.

Check it against your exact PC →
Performance (1440p) ~47% of an RTX 5090
Board power (TDP) 200 W
Recommended PSU 650 W
Power connectors 2× 8-pin → 16-pin
Length 244 mm
Thickness 2 slots
Interface PCIe 4.0 x16
Released 2023

🔌 Power & connectors

NVIDIA/AMD recommend at least a 650 W power supply for the GeForce RTX 4070, and it draws power through 2× 8-pin → 16-pin. Make sure your PSU actually has that cable free — it's the #1 reason a GPU upgrade gets returned.

📏 Will it fit your case?

The GeForce RTX 4070 is 244 mm long and 2 slots thick. It fits 66 of 66 popular cases we track, including 9 small-form-factor (ITX) cases.

Tightest cases it still fits: SilverStone SG13 (ITX), Thermaltake Versa H17, Lian Li A4-H2O (ITX), Lian Li Q58 (ITX).

🧠 CPUs that won't bottleneck it

The faster the GPU, the more CPU you need — and lower resolutions lean harder on the CPU. Minimum recommended CPU for the GeForce RTX 4070 by resolution:

1080p (most CPU-demanding) — at least a Ryzen 5 2600
Ryzen 5 2600Core i5-6600KCore i7-4790KRyzen 3 3100Ryzen 7 2700
1440p — at least a Core i5-4690K
Core i5-4690KRyzen 5 1600Ryzen 7 1700Core i5-6500Ryzen 7 1700X
4K (least CPU-demanding) — at least a Core i5-4690K
Core i5-4690KRyzen 5 1600Ryzen 7 1700Core i5-6500Ryzen 7 1700X

"Won't bottleneck" means your CPU can keep the GeForce RTX 4070 busy at that resolution; the chips shown are the most affordable that qualify. Specific games still vary.

Does the GeForce RTX 4070 fit your build?

Enter your case, PSU, CPU and motherboard and get an instant fit / power / bottleneck verdict for your existing PC — no parts list to build.

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