a difference of 2 mh/s doesn't sound too bad, should be within margin of error or you got a bad silicon. that being said, a chinese aib is famous for its bad cooling solution and lack of features (slightly less powerful), so the temp doesn't sound that alarming. if you want to buy chinese aibs card, i think you should look at colorful. a lot of reviewers that i know of seems to check them more regularly compared to other vendors' card.
If you have multiple GPUs at work you will understand that every MegaHash matters, even if it's 1MH calculate that in 10 places it's extra 10MH for you so yes every MH matters, I'm suspecting the GPU to be a poorly built from China but honestly I've heard good stuffs about MAXSUN graphic cards don't know why this one sucks 
Topic: A very bad GPU 😡 - page 2. (Read 310 times)
gtx1660 not very good option for mining. get 1660s or 1660ti
Where is this coming from? 
I have some 1660 bought from China simply because they are cheaper, got them for 350$ each and they do 26MH mining Ethereum, what is your PC settings cos that's what stoping many from reach 25/26MH on this cards The 1660 gives approx 22MH/s. Some cards perform bit lower than the expected MH/s irrespective of whatever OC settings. We have to remember that same brand GPU of same model with same memory chip and batch number performs differently.
There are gtx1660 graphic cards that do 27MH using Trex absolute core clock settings but all the same it's all about silicon lottery but the minimum I've seen are 24MH to 25MH if yours is getting 22MH it's the silicon or you don't get the proper clocking 
a difference of 2 mh/s doesn't sound too bad, should be within margin of error or you got a bad silicon. that being said, a chinese aib is famous for its bad cooling solution and lack of features (slightly less powerful), so the temp doesn't sound that alarming. if you want to buy chinese aibs card, i think you should look at colorful. a lot of reviewers that i know of seems to check them more regularly compared to other vendors' card.
True, colorful GPUs are on par with brands like MSI, Asus and others, I have a colorful rtx3060 that's doing 50+MH on Ethereum mining right now and it's cooling under 56°C I think this is the best brand from China till this day gtx1660 not very good option for mining. get 1660s or 1660ti
You are damn wrong, I have a rig with only 1660, I will drop the Hashrate I'm getting with each cards 1. Galax 25MH @ 47watt ( Samsung )
2. Asus 1660 24.67MH @ 60 watt ( Samsung )
3. Gigabyte 25.6MH @ 54watt (hynix)
4. Zotac 26MH @ 57watt (hynix)
5. MSI 25MH @ 56 watt ( hynix )
Silicon lottery wins on that Galax GPU, really impressive so I'm guessing that maxsun is just a victim of poor silicon lottery lol, I think OP should try hiveOS there are others using this GPU and their settings are available, just try them out one after the other
a difference of 2 mh/s doesn't sound too bad, should be within margin of error or you got a bad silicon. that being said, a chinese aib is famous for its bad cooling solution and lack of features (slightly less powerful), so the temp doesn't sound that alarming. if you want to buy chinese aibs card, i think you should look at colorful. a lot of reviewers that i know of seems to check them more regularly compared to other vendors' card.
gtx1660 not very good option for mining. get 1660s or 1660ti
micron GDDR5X low mh
I have a maxsun gtx1660 that does nothing over 20MH per second, I mean no matter what config I use - /+ or just simple OC this hashrate won't go over and the GPU also gets hotter than every other 1660s I own, around 66°C while others are doing 53°C max, what could be wrong??
From the people I know that use Maxsun products they say they are really good products although they admit they are hotter than other brands so their cooling isn't the most perfect one out there.However about the hash rate I don't know what it could be,most probably Maxsun use a memory chip of their own but you should check with GPU-Z which memory chip they are using and if they are using a brand other than Samsung,Hynix,Micron or Elpida this is probably the cause of the lower hash rate you are getting.
I have a maxsun gtx1660 that does nothing over 20MH per second, I mean no matter what config I use - /+ or just simple OC this hashrate won't go over and the GPU also gets hotter than every other 1660s I own, around 66°C while others are doing 53°C max, what could be wrong??
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