GeForce RTX 3080 10 GB
The original 10 GB RTX 3080, kept separate because capacity changes borderline fits.
NVIDIAcomponentDiscontinued0 models fit0 measured
Memory
10 GB
Official spec GDDR6X
Memory bandwidth
760 GB/s
Official spec ~70% achieved in practice
Specifications
CPU
— Official spec
GPU
GeForce RTX 3080 Official spec
Memory
10 GB GDDR6X Official spec
Memory bandwidth
760 GB/s Official spec source
Achieved bandwidth ⓘ
~70% (532 GB/s) Assumption
System RAM
64 GB Official spec
Interconnect
PCIe 4.0 x16 Official spec
Architecture
Discrete GPU with dedicated VRAM Official spec
Nominal power
320 W Official spec
Measured load power
— Assumption
Idle power
— Measured
Released
17 Sept 2020 Official spec
Standout models on this machine
Largest that fits
—
Related hardware
Model performance on GeForce RTX 3080 10 GB0 measured, 0 estimated
0 of 0 rows
| Model↕ | Quant | Memory↕ | Decode▼ | Prefill↕ | Context | Fit | Confidence↕ |
|---|---|---|---|---|---|---|---|
| Nothing matches these filters. | |||||||
Rows in grey are estimates from our bandwidth model, not measurements — they are shown as a range and never as a precise figure. Use the “measured only” filter to see just the 0 pairings on this machine that a real benchmark backs.
Ownership economicsUnited States (federal) · C corporation · 8h/day
Monthly economic cost
$2
Calculated after tax
Codex/Claude Code
$100/mo
≈ $100/mo · local is $98 less
Net cash at purchase
$0
Calculated VAT not reclaimable
Total over 5 years
$111
Calculated after tax, after resale
Cost per USD/1M tokens
—
Calculated
The $100 comparison uses the Codex Pro 5x / Claude Max 5x plans. A fixed planning conversion is used for USD. This compares monthly spend only: subscriptions have usage limits, local hardware has different capabilities and constraints, and taxes or regional pricing may change the charged amount. Prices checked 7 September 2026.
Monthly breakdown
| Depreciation 0 over 5 years, straight-line to a 0 residual | $0.00 |
| Electricity 16.7 kWh/month at 0.140/kWh | $2.33 |
| Monthly cost before tax | $2.33 |
| Electricity tax shield Running costs are deductible business expenses | −$0.49 |
| Monthly economic cost after tax | $1.84 |
Three different numbers, deliberately
Cash cost
$0
Money that leaves the bank account on day one, net of reclaimable VAT.
Accounting depreciation
$0.00/month
$0 written down over 5 years to a $0 residual.
After-tax economic cost
$1.84/month
Depreciation plus running costs plus cost of capital, less the tax those deductions save. This is the figure to compare between machines.
Assumptions and sources (verified 2026-09-07)
VAT rate
0% Official spec
VAT recoverable
0% Official spec
Federal C-corporation estimate at the flat 21% rate. Pass-through entities should use the sole-proprietor estimate as a rougher proxy.
Effective deduction rate
21.00% Calculated
Headline marginal rate 21.00%.
Depreciation
5 years, straight-line Assumption
Residual value
$0 (15%) Assumption
Two GPU generations later, the card is worth a fraction of its list price.
Electricity
$0.140/kWh Assumption
Average power draw
95 W Calculated
Load 320 W for 20% of powered hours, idle 38 W for the rest — a machine that is on is not generating tokens the whole time.
Investment allowances
§179 100.0% Official spec
Worth $0 in total — first-year expensing that replaces later tax depreciation.
Cost of capital
not applied Assumption
- VAT rate: No US federal VAT · verified 2026-09-07
- Marginal tax rate: IRS Publication 542 — Corporations · verified 2026-09-07
- VAT recoverable fraction: site assumption · verified 2026-09-07
- Useful life: IRS Publication 946 — How To Depreciate Property · verified 2026-09-07
- Electricity price: Site assumption · verified 2026-09-07
Federal planning estimate only, not tax advice. State and local income tax, sales/use tax and incentives are excluded. It assumes 100% business use, a Section 179 election, enough business income to use it, and that the full annual limit remains available.