GeForce RTX 5090 on OctaSpace — Mining Profit, Solo Odds & Cost of Production

160.10 MH/s · Ethash · network 1.32 TH/s. A GeForce RTX 5090 solo mining OctaSpace (OCTA) has about 296 blocks per year, i.e. an expected block roughly every 1 days for the full 1.0000 OCTA reward.

GeForce RTX 5090 on OctaSpace — Mining Truth Benchmark & Specifications

Consolidated PoW oracle metrics for operating a GeForce RTX 5090 on OctaSpace (OCTA) at live network difficulty and benchmark industrial electricity (0.069 USD/kWh):

Can you solo mine OctaSpace with a GeForce RTX 5090?

Yes — a GeForce RTX 5090 (160.10 MH/s) can solo mine OctaSpace (OCTA) via a solo pool. At OctaSpace's 1.32 TH/s Ethash network that is about 296 blocks per year — expected one block roughly every 1 days, for the full 1.0000 OCTA 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 OctaSpace

The GeForce RTX 5090 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 OctaSpace, it ranks #1 in electrical efficiency (552,055.17 H/W) and #1 in raw hashrate (160.10 MH/s).

Electricity Operating Costs & Breakeven

Running a GeForce RTX 5090 (290 W) pulls about 6.96 kWh per day (211.8 kWh per month). At the standard rate of 0.069 USD/kWh, electricity costs roughly 0.48 USD per day (14.62 USD/month or 175 USD/year). Statistically that year returns 296.40 blocks, worth about $33.64 — you would burn roughly 5x more in electricity than that reward is worth.

The operational breakeven threshold is 0.013 USD/kWh. Expected net operating margin at benchmark tariffs:

• At 0.040 USD/kWh (Hydro / Renewable): -0.19 USD / day
• At 0.069 USD/kWh (Standard Industrial): -0.39 USD / day
• At 0.120 USD/kWh (Residential Grid): -0.74 USD / day

Break-even Coin Price Target: For this hardware to break even on electricity, OctaSpace must trade at or above 0.5918 USD at standard industrial power (0.069 USD/kWh), or 1.03 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 1 days, real-world dispersion ranges across 5% and 50% quantiles:

• Lucky streak (5% Odds): Block within ~1.5 hours (1-in-20 fastest discovery, power cost: ~0 USD)
• Median expectation (50% Odds): Block within ~20.5 hours (Nominal median, power cost: ~0 USD)
• Bad luck streak (5% Odds): Can stretch up to ~4 days (1-in-20 extended dry spell, power cost: ~2 USD)

High Variance Alert: In a 1-in-20 severe drought (~4 days), cumulative electricity burned (~2 USD) will exceed the block reward value (0 USD). Pool mining is recommended for risk-averse operators.

GeForce RTX 5090 Price & Estimated ROI

Current market price: $5,625–$10,661 across 26 vendors (median $7,708). Mined against its most profitable coin instead of solo, it would pay itself back in about 3.8 years.

How other hardware compares on OctaSpace

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

How the odds have moved

OctaSpace's network hashrate fell 7% since 2026-09-08, from 1.42 TH/s to 1.32 TH/s — so the same rig is now 7% more likely to find a block.

Where to point a GeForce RTX 5090 at OctaSpace

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 6 solo pools for OctaSpace with their stratum endpoints, fees, and pool hashrates — see OctaSpace solo mining pools:

• woolypooly.com (Fee: 0.9% · Hashrate: 2.59 GH/s)
• k1pool.com (Fee: 1% · Hashrate: 77.43 GH/s)
• coolpool.top (Fee: 1% · Hashrate: 57.84 GH/s)

How the odds are calculated

Solo mining is memoryless: every hash is an independent lottery ticket, so the wait for a block follows an exponential distribution rather than a fixed schedule. On average a block takes T = network_hashrate ÷ your_hashrate × block_time, and the probability of finding at least one within a window t is P = 1 − e^(−t/T). BackPoW uses this Poisson relation instead of a naive linear estimate. For this pair: daily chance 55.58%, yearly chance 100.00%.

Frequently Asked Questions: GeForce RTX 5090 on OctaSpace

Can you solo mine OctaSpace with a GeForce RTX 5090?

Yes — a GeForce RTX 5090 (160.10 MH/s) can solo mine OctaSpace (OCTA) via a solo pool. At OctaSpace's 1.32 TH/s Ethash network that is about 296 blocks per year — expected one block roughly every 1 days, for the full 1.0000 OCTA block. BackPoW computes this from live network difficulty using a Poisson block-discovery model.

Is Ethash ASIC-resistant, and where does the GeForce RTX 5090 stand?

Ethash is an ASIC-resistant GPU algorithm relying on memory bandwidth. The GeForce RTX 5090 ranks #1 of 2 GPUs on OctaSpace. 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 5090 on OctaSpace?

At 290 W, operating a GeForce RTX 5090 consumes 6.96 kWh/day (211.8 kWh/month). At standard electricity (0.069 USD/kWh), the power bill is 0.48 USD/day (14.62 USD/month). The operational breakeven threshold is 0.013 USD/kWh.

What happens if my GeForce RTX 5090 encounters a severe dry spell on OctaSpace?

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 4 days, accumulating roughly 2 USD in power costs.

Alternative Mining Options for GeForce RTX 5090

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