Cloudzat GPU & Local AI Hardware Intelligence
Local AI Workstation Power and Electricity Cost Calculator
Board power is not the same as constant wall consumption. This calculator combines GPU utilization, the rest of the workstation, idle time and electricity price to estimate a realistic operating-cost range.
Estimate workstation power and electricity cost
Results combine GPU utilization, base-system draw and idle time.
Maximum board power is a sizing figure
A GPU may spend much of an inference session below its maximum, but the power supply must still handle peaks and transient loads.
The rest of the workstation is significant
CPU, motherboard, drives, memory, fans and conversion losses add to wall power. Dual-socket or multi-GPU systems can use much more than the GPU total alone.
Always-on idle time adds up
A workstation used as a server may be idle for most of the day. Efficient idle configuration and scheduled shutdowns can reduce annual cost.
Heat becomes a room-level issue
Nearly all consumed electricity becomes heat. High-power AI workstations need sufficient airflow and may increase air-conditioning demand.
Current GPU catalogue
Current Amazon offers identified by exact GPU model. Use the calculator above for workload-specific ranking.
| GPU offer | VRAM | Stack | Power | Condition | Price | Price/GB | |
|---|---|---|---|---|---|---|---|
 Intel Arc A770 16GBGUNNIR Intel Arc A770 Photon 8GB OC GDDR6 2400MHz Triple Fan Graphics Card |
16GB GDDR6 |
oneAPI / DirectML | 225W 600W PSU |
New | Price Options | — | Buy on Amazon |
 Intel Arc B580WEELIAO GUNNIR Intel Arc B580 Index 12GB GDDR6 2670MHz Dual Fan Graphics Card (192-bit, PCI-Express 4.0 x8, HDMI/DisplayPort, Supports 4k) |
12GB GDDR6 |
oneAPI / DirectML | 190W 600W PSU |
New | Price Options | — | Buy on Amazon |
 Intel Arc B580TFGAJKKKKK Intel Arc B Series Intel Arc B580 Limited Edition Graphics Video Card |
12GB GDDR6 |
oneAPI / DirectML | 190W 600W PSU |
New | Price Options | — | Buy on Amazon |
 Intel Arc B580ASRock Intel Arc B580 Challenger 12GB OC & Challenger CL-650G 650W Gold PSU | Modern Gaming & Streaming Bundle |
12GB GDDR6 |
oneAPI / DirectML | 190W 600W PSU |
New | Price Options | — | Buy on Amazon |
 Intel Arc B580ASRock Intel Arc B580 Challenger 12GB OC & PRO-650G 650W 80+ Gold PSU | Efficient 1440p Gaming Bundle |
12GB GDDR6 |
oneAPI / DirectML | 190W 600W PSU |
New | Price Options | — | Buy on Amazon |
 Radeon RX 7800 XTSapphire 11330-01-20G Nitro+ AMD Radeon RX 7800 XT Gaming Graphics Card with 16GB GDDR6, AMD RDNA 3 |
16GB GDDR6 |
ROCm / DirectML | 263W 700W PSU |
New | Price Options | — | Buy on Amazon |
 Radeon RX 7800 XTPowerColor Fighter AMD Radeon RX 7800 XT 16GB GDDR6 Graphics Card |
16GB GDDR6 |
ROCm / DirectML | 263W 700W PSU |
New | Price Options | — | Buy on Amazon |
 Radeon RX 7800 XTSapphire 11330-03-20G Pure AMD Radeon RX 7800 XT Gaming Graphics Card with 16GB GDDR6, AMD RDNA 3 |
16GB GDDR6 |
ROCm / DirectML | 263W 700W PSU |
New | Price Options | — | Buy on Amazon |
Amazon prices and images are refreshed on a 24-hour cycle when available. A verified listing without a current featured numeric price is shown as Price Options; check Amazon for the current offer.
Frequently asked questions
Does a 575W GPU always use 575W?
No. That is a maximum board-power reference. Actual use varies with model, runtime, power limit and utilization.
How much PSU headroom should I keep?
A common planning approach is to keep roughly 20 percent to 30 percent capacity above sustained demand while also following the GPU vendor recommendation.
Can undervolting reduce AI power use?
It may improve efficiency on some cards, but stability must be tested under the actual AI workload.