NVIDIA · Upgrade guide
Will the GeForce RTX 3080 10GB fit and work in your PC?
Everything you need before you buy a GeForce RTX 3080 10GB 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 →🔌 Power & connectors
NVIDIA/AMD recommend at least a 750 W power supply for the GeForce RTX 3080 10GB, and it draws power through 2× 8-pin → 12-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 3080 10GB is 285 mm long and 2 slots thick. It fits 65 of 66 popular cases we track, including 8 small-form-factor (ITX) cases.
Tightest cases it still fits: Thermaltake Versa H17, Lian Li A4-H2O (ITX), Lian Li Q58 (ITX), Fractal Terra (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 3080 10GB by resolution:
"Won't bottleneck" means your CPU can keep the GeForce RTX 3080 10GB busy at that resolution; the chips shown are the most affordable that qualify. Specific games still vary.
Does the GeForce RTX 3080 10GB 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.
Run the check →