GeForce RTX 4090 on Decred — Mining Profit, Solo Odds & Cost of Production

39.91 GH/s · Blake3DCR · network 6.25 TH/s. A GeForce RTX 4090 solo mining Decred (DCR) has about 624 blocks per year, i.e. an expected block roughly every 14.0 hours for the full 0.0510 DCR reward.

GeForce RTX 4090 on Decred — Mining Truth Benchmark & Specifications

Consolidated PoW oracle metrics for operating a GeForce RTX 4090 on Decred (DCR) at live network difficulty and benchmark industrial electricity (0.069 USD/kWh):

Can you solo mine Decred with a GeForce RTX 4090?

Yes — a GeForce RTX 4090 (39.91 GH/s) can solo mine Decred (DCR) via a solo pool. At Decred's 6.25 TH/s Blake3DCR network that is about 624 blocks per year — expected one block roughly every 14.0 hours, for the full 0.0510 DCR block. BackPoW computes this from live network difficulty using a Poisson block-discovery model. Realistically this is genuinely worth a patient solo run.

Hardware Tier & Ecosystem Ranking on Decred

The GeForce RTX 4090 is categorized in the Mid-Range Workhorse Tier (Middle quartile hashrate offering solid pool mining throughput with moderate solo variance.). Among all 2 tracked models on Decred, it ranks #2 in electrical efficiency (142,542,857.14 H/W) and #2 in raw hashrate (39.91 GH/s).

Electricity Operating Costs & Breakeven

Running a GeForce RTX 4090 (280 W) pulls about 6.72 kWh per day (204.5 kWh per month). At the standard rate of 0.069 USD/kWh, electricity costs roughly 0.46 USD per day (14.11 USD/month or 169 USD/year). Statistically that year returns 624.37 blocks, worth about $562 — expected revenue covers the power bill about 3.3x over.

The operational breakeven threshold is 0.229 USD/kWh. Expected net operating margin at benchmark tariffs:

• At 0.040 USD/kWh (Hydro / Renewable): +1.27 USD / day
• At 0.069 USD/kWh (Standard Industrial): +1.08 USD / day
• At 0.120 USD/kWh (Residential Grid): +0.73 USD / day

Break-even Coin Price Target: For this hardware to break even on electricity, Decred must trade at or above 5.32 USD at standard industrial power (0.069 USD/kWh), or 9.25 USD at residential power (0.120 USD/kWh).

Bankroll & Variance Risk Simulator

Solo mining block discovery follows a memoryless Poisson distribution. While the average wait is 14.0 hours, real-world dispersion ranges across 5% and 50% quantiles:

• Lucky streak (5% Odds): Block within ~43.2 min (1-in-20 fastest discovery, power cost: ~0 USD)
• Median expectation (50% Odds): Block within ~9.7 hours (Nominal median, power cost: ~0 USD)
• Bad luck streak (5% Odds): Can stretch up to ~2 days (1-in-20 extended dry spell, power cost: ~1 USD)

Jackpot Safe: Even in a 1-in-20 bad luck drought (~2 days), the Decred block reward (1 USD) covers electricity costs (~1 USD) with a net surplus of ~0 USD.

GeForce RTX 4090 Price & Estimated ROI

Current market price: $2,150–$2,350 (estimated market price, median $2,250) (Hardware price estimated). Mined against its most profitable coin instead of solo, it would pay itself back in about 390 days.

How other hardware compares on Decred

Devices in the same hashrate class, solo mining Decred at today's difficulty:

How the odds have moved

Decred's network hashrate fell 69% since 2026-09-08, from 20.44 TH/s to 6.25 TH/s — so the same rig is now 69% more likely to find a block.

Where to point a GeForce RTX 4090 at Decred

Solo mining still runs through a solo pool: it handles the block template and pays the full reward to whoever finds the block. BackPoW tracks 1 solo pool for Decred with their stratum endpoints, fees, and pool hashrates — see Decred solo mining pools:

• woolypooly.com (Fee: 0.9% · Hashrate: 1.11 TH/s)

How the odds are calculated

Because each hash succeeds independently, finding a block is a Poisson process — there is no 'due' block, only an average rate. The mean time between blocks is T = network_hashrate ÷ your_hashrate × block_time, and the realistic chance of at least one block over a period t is P = 1 − e^(−t/T). That is why a longer run raises your odds but never guarantees a block. For this pair: daily chance 81.90%, yearly chance 100.00%.

Frequently Asked Questions: GeForce RTX 4090 on Decred

Can you solo mine Decred with a GeForce RTX 4090?

Yes — a GeForce RTX 4090 (39.91 GH/s) can solo mine Decred (DCR) via a solo pool. At Decred's 6.25 TH/s Blake3DCR network that is about 624 blocks per year — expected one block roughly every 14.0 hours, for the full 0.0510 DCR block. BackPoW computes this from live network difficulty using a Poisson block-discovery model.

Is Blake3DCR ASIC-resistant, and where does the GeForce RTX 4090 stand?

Blake3DCR is an ASIC-resistant GPU algorithm relying on memory bandwidth. The GeForce RTX 4090 ranks #2 of 2 GPUs on Decred. It operates in the Mid-Range Tier (middle quartile), offering solid pool mining throughput with moderate solo variance.

What is the operating power cost and breakeven electricity rate for a GeForce RTX 4090 on Decred?

At 280 W, operating a GeForce RTX 4090 consumes 6.72 kWh/day (204.5 kWh/month). At standard electricity (0.069 USD/kWh), the power bill is 0.46 USD/day (14.11 USD/month). The operational breakeven threshold is 0.229 USD/kWh.

What happens if my GeForce RTX 4090 encounters a severe dry spell on Decred?

Block discovery is an independent Poisson process with no memory. In a 1-in-20 bad luck drought (5% worst luck), finding a block can stretch up to 2 days, accumulating roughly 1 USD in power costs.

Alternative Mining Options for GeForce RTX 4090

Comparing solo odds, jackpot block value, and daily pool revenue across other coins minable with this rig: