17 votes
Accepted

Approximate cost of developing Cryptonight ASICs

Even FPGA would be expensive for CryptoNight because most standard FPGA have close to zero memory. Your second point will, therefore, not only decrease the relative advantage of ASICs or FPGA over ...
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16 votes

Which type of hardware is the most efficient for mining Monero?

In terms of power efficiency, the reigning champ was the Nvidia 750Ti. That GPU will get you 250H/s and use about 30-40W power. For efficiency, that puts it around 6H/s/W. With the optimized ARM64 ...
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  • 4,203
14 votes

Which type of hardware is the most efficient for mining Monero?

There are no ASICS yet, and GPUs are about 2-4x faster than CPUs. Monero's PoW algorithm has a large memory requirement that would make it difficult to use an ASIC and less advantageous to use a GPU ...
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  • 8,714
12 votes
Accepted

At what stage is the Monero mining race at right now?

Right now Wolf's OpenCL XMR Miner for AMD GPUs (open source) and Claymore CryptoNote GPU Miner (proprietary) are probably the most efficient. It is believed that Monero is still quite far away from ...
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  • 827
11 votes

Which type of hardware is the most efficient for mining Monero?

People visiting this question in the future will find the answers provided are out of date. This website lists user-submitted hardware benchmarks that include Monero mining hashrate, power consumption,...
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  • 421
9 votes

At what stage is the Monero mining race at right now?

Currently network hashrates are near historically high levels. How much further hash rate moves up in the future depends heavily on mining profitability based on current XMR prices and coinbase reward....
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  • 6,533
7 votes
Accepted

What exactly has been changed in PoW algorithms in the v7 fork?

In versions 1 to 6 of the protocol, the CryptoNight algorithm was very roughly: state = keccak(block_data) scratchpad = fill_scratchpad(state) loop 524,288 times address = compute_address(...
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  • 3,304
7 votes

Which type of hardware is the most efficient for mining Monero?

Currently the rx400 series is the most efficient, powerful, and cost-effective mining equipment. I have gotten an rx470 to 700 h/s using about 80-90 watts. It required many hours of bios modification, ...
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  • 5,656
7 votes
Accepted

Which type of hardware is the most efficient for mining Monero?

Monero could be mined by ASIC. The Bitmain Antminer X3 is U$1255, ships Aug. 21-31 2018, and weighs 7 kg, it does 220000 H/s using 465 W +7% (2.27 J/kH +7%) - but they clearly mention: There are ...
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  • 356
6 votes
Accepted

Is Monero really decentralized, if the dev team can easily change the POW algorithm to fight off ASICs so easily?

Centralization is a continuum. Actions and circumstances move a particular system along that continuum. There are several points which are topical here: Monero development is made by a smallish ...
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  • 34.6k
4 votes

Which type of hardware is the most efficient for mining Monero?

This depends on whether you refer to "performance per watt" or "performance per purchase price". Raw hash rates for different CPUs and GPUs can be found, for example, at http://monerobenchmarks.info/...
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3 votes

Which ASIC manufacturer (if any) made ASICs for XMR in the past?

There may have been others, but at least Baikalminer[archive] and Bitmain[archive] launched Monero ASIC miners in 2018. It's worth noting Bitmain allowed people to buy the ASICs, but didn't actually ...
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3 votes

What are the main advantages / disadvantages between proposed RandomX to ProgPoW?

What are the main differences between ProgPOW and RandomX? The design goal of ProgPoW is to have the algorithm’s requirements match what is available on commodity GPUs, while RandomX is inefficient (...
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  • 1,611
3 votes

Which type of hardware is the most efficient for mining Monero?

This Google docs spreadsheet has a nice list of GPU/CPU hash rate reports to help you make up your mind! Here are top-10 CPUs: CPU ~H/s Threads TDP, W Miner app / version Settings / command line ...
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  • 41
3 votes

Which type of hardware is the most efficient for mining Monero?

The most efficient hardware for mining Monero, at this time, are AMD GPU cards. High hashrate power and low power consumption is the perfect combination. Truly, the more cost-efficient hardware for ...
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  • 1,611
2 votes

How do "Time Locked Proof of Non-ASIC work challenge reward" algorithms work to deter ASIC production?

The idea behind this draft is more like an extension to PoW changes like currently to prevent ASICs overtaking a serious amount of hash rate. However, it's proposing to time lock all mining rewards ...
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  • 2,552
2 votes
Accepted

Would having two separate proof of work algorithms for Monero be more secure?

To evaluate whether one alternative is more secure than the other we have to answer the question: Which alternative makes an attack more costly? In the Cryptonight-only case the cost of an attack is ...
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  • 1,386
2 votes

What are the changes in CryptoNight v2 PoW algorithm?

The main changes are: reading a whole 64 byte chache line at a time: many recent processors will read 64 bytes at a time when fetching from RAM, so access to the whole set is virtually free after it'...
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  • 34.6k
2 votes

Why does the Monero difficulty increase?

The difficulty is a numerical representation of how long on average it will take to create a valid block that satisfies the Proof-of-Work algorithm being used, it does not represent minutes or ...
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  • 242
2 votes

What is so different about RandomX from other attempted ASIC-resistant mining algorithms?

Cryptonight really only exploited one particular feature of modern CPUs, fast cache access. When it was designed, it was thought ASICs would be at a significant disadvantage because of their general ...
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  • 17.5k
2 votes

What was the difference in hashrate power when the March 2018 anti-ASIC Hardfork occurred?

The fork was moved to today (April 6, 2018), so it is hard to tell. Early indications based on block-times are about 80% of the hash-rate is missing. Some of that is non-ASIC miners failing to update ...
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2 votes

Is avoiding significant advantage by an specific hardware an active goal of the Monero developers?

Based on above comments ... No. CryptoNight is the exact opposite of what "hardware-agnostic" means. In particular, CryptoNight is designed to run best on CPUs, and run less efficiently on GPUs and ...
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  • 4,203
1 vote

Why are I/O bound instructions not used as part of a hashing algorithm to thwart ASICs

"Specialized nodes that act as middlemen" defeats the entire purpose of PoW, which is decentralization.
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  • 4,203
1 vote

Who created the Monero ASICs during 2019-Jan to 2019-Mar?

Do we know who exactly created these asics during the big hash run up during 2019-Jan to 2019-Mar? It's hard to say, but the names are the usual known. And why would they create these asics, ...
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  • 1,611
1 vote

Was there evidence of any ASICS after the new POW upgrade in october 2018?

No hard evidence I'm aware of. The changes this time were made to thwart any ASICs that may have been under development since the last fork. By changing the algorithm every 6 months, this severely ...
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  • 17.5k
1 vote

What are the changes in CryptoNight v2 PoW algorithm?

I wouldn't say it's "almost finished". There is a lot of discussion on this particular PR here. On reading, it looks like there is a lot to iron out still on this particular proposal if it were to ...
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  • 17.5k
1 vote

What was the difference in hashrate power when the March 2018 anti-ASIC Hardfork occurred?

As of writing this answer (2018-04-07 03:00 UTC), ~18.5 hours after network upgrade, there are 65 blocks mined (latest is 1546065). It takes on average 17 minutes to mine a block, which is 8.5 times ...
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  • 343
1 vote

What was the difference in hashrate power when the March 2018 anti-ASIC Hardfork occurred?

The network hash rate was around 1123 MH/s at the time of the fork. The difficulty hasn't changed yet, so blocks are coming in much slower(lower hash rate at same "asic difficulty"), and while it ...
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  • 46
1 vote

Would having two separate proof of work algorithms for Monero be more secure?

Say 50% is cryptonight and 50% is an asic friendly pow That scenario would bring mining centralization very quickly because once an ASIC friendly PoW is introduced only miners using ASICs can ...
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  • 420

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