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ZisK cuts Ethereum proving hardware to four RTX 5090 GPUs
ZisK said its v1.1.0-alpha prover hit 9.62-second p99 latency and that 99.7% of tested blocks proved in under 10 seconds, aligning with Ethereum’s 99% within 10-second goal.
ZisK’s open source zero-knowledge virtual machine project is reporting a lower hardware requirement for Ethereum real time proving, moving from a previously discussed roughly 12 GPU setup toward a four GPU benchmark. CryptoSlate previously raised centralization concerns around higher GPU counts, and the new claim aims to make proof generation more feasible for independent operators if workloads and timing are comparable.
On Aug. 18, ZisK said its v1.1.0-alpha prover recorded 9.62-second p99 on four RTX 5090 GPUs, and a follow up said 99.7% of tested Ethereum blocks finished in under 10 seconds. Ethereum’s working standard calls for at least 99% of mainnet blocks to be proved within 10 seconds, and CryptoSlate noted that if ZisK’s p99 was calculated over an equivalent workload and timing boundary, 9.62 seconds would be 0.38 seconds below the threshold.
The update is still framed as a benchmark claim because ZisK has not yet published key testing details, including the block range, sample size, how p99 was calculated, the timing boundary used, proof size, or whole system power measurements. CryptoSlate also highlighted that the Ethereum Foundation pairs the latency target with other decentralization preserving conditions, including on premises equipment cost capped at $100,000, power use no higher than 10 kilowatts, fully open source code, at least 128 bit security, and proofs no larger than 300 KiB without trusted setups.
CryptoSlate added that ZisK’s result is tied to claims around combining four GPU proving with 128 bit security and post quantum resistance, with the project repository licensed under MIT or Apache 2.0. It also said the four RTX 5090 approach appears to sit below the 10 kilowatt ceiling for GPUs alone, with Nvidia specifying 575 watts of graphics power per RTX 5090, and an RTX 5090 launch price of $1,999, which would put four cards at $7,996 at MSRP.
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