Impact of memory size (4 / 8GB) of RX480 on DAG size and perf

[XE14]

Hello,

As stated on this website :http://crypto-mining.xyz/eth/ethereum-dag-size-predictions/,

The DAG started at 1 GB at the time of the Frontier launch, and increases by approximately 0.73x per year. Current size is about 1.80 GB as of mid-November 2016.

Estimation:

The 2GB limit will be reached December 2016
The 3GB limit will be reached April 2018
The 4GB limit will be reached September 2019

From your observations, would you consider that 4gb memory GPUs could be obsolete and useless for mining before performance is negative because of dag size which in any way would prevent profitable mining?

Also, is there a significant difference of performance between RX480 4GB and 8GB which would justify opting for 8gb version?

[1714903104]

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[1714903104]

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[1714903104]

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[1714903104]

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[jstefanop]

Hello,

As stated on this website :http://crypto-mining.xyz/eth/ethereum-dag-size-predictions/,

The DAG started at 1 GB at the time of the Frontier launch, and increases by approximately 0.73x per year. Current size is about 1.80 GB as of mid-November 2016.

Estimation:

The 2GB limit will be reached December 2016
The 3GB limit will be reached April 2018
The 4GB limit will be reached September 2019

From your observations, would you consider that 4gb memory GPUs could be obsolete and useless for mining before performance is negative because of dag size which in any way would prevent profitable mining?

Also, is there a significant difference of performance between RX480 4GB and 8GB which would justify opting for 8gb version?

There is no reason to go with a 8GB card for eth mining. It will perform exactly the same (there are variances between different memory types but thats about it). Eth will also be POS by the time the 4GB limit is reached.

[BChydro]

I doubt ETH will be mineable by March-ish 2019 (4 GB cards likely will stop being able to mine ETH when the DAG gets to ~3.5 GB because not all of the video RAM is used for the DAG), by then POS should have long taken over, but who knows, POS was meant to begin over a year ago!

I still would still buy 4 GB cards over 8 GB. There isn't really a performance difference between the 2 because the bottleneck is memory bandwidth (How fast the card can shuttle data back and forth between the GPU engine and the memory) which is the same for 4 and 8 GB cards.

[Marvell1]

personally i prefer 8 gb cards they seem to use better quality ram chips and be more stable
id rather pay $60 more than constatly have to throttle my rigs down or reflash the mem.  All my 8gig cards
its one Rom to rule them all 💍😂.  my 4gig cards i have to have like six differnt roms to handle the differing asic quality smh

[Eyedol-X]

ETC will be POW longer than ETH so whatever card you buy will likely switch over to that if you want to continue mining after ETH goes POS.

8GB Cards typically but not always have faster memory which you can overclock higher for a 1-2 extra MH per card. This adds up across multiple cards and miners.

4GB Cards are cheap and often more readily available because everyone wants 8GB's

Bottom line, buy what card best suits your budget and expected return.

I have mostly 8GB cards but 1 7GPU 4GB rig and as cheap as I got those 4GB cards, it was too good to pass up.

[retal]

Guys, how many MB dag file size today right now ?

[muratizm]

Guys, how many MB dag file size today right now ?

Current ETH share target: 0x0000000112e0be82 (diff: 4000MH), epoch 132(2.03GB)

right now it is 2.03 GB

[sundownz]

Also 8 Gig cards have superior resale in my experience.