二手版開始賣礦卡的原因 - 數位貨幣

By John
at 2017-07-09T19:57
at 2017-07-09T19:57
Table of Contents
不久前有討論DAG爆VRAM, 在推文曾說過,算力會隨DAG增大下滑(原因後述)。
根本不用擔心3-4GB不夠,
在那之前你很可能早就換幣挖了.....
二手版有少數人開始賣礦卡,應該只是看衰幣值下滑與全網算力快速增加,
(各幣幣值彼此連動,一跌是全跌...)
影響後續獲利。
跟DAG導致未來顯核算力下滑可能
沒明顯關係,因為還有其他更嚴重因素
比這更早出現。
1. 現在即使賣卡,今年也沒有算力CP值 更高的卡能換了。
(賣卡不是想換長期算力較不受影響的,應該是就放棄不挖了)
2. DAG影響算力問題,類似假議題。
因為ETH以太幣年底就打算逐步轉換POS。 這個影響遠比算力下滑嚴重。
可能也等不到算力降到挖不動而換卡。
早就被迫換幣挖。
ETH離年底轉換POS只剩幾個月好時光。所以DAG明後年變大可以說重要,
但也可以說完全不重要....
因為你可能不會挖這麼久。
除非你對ETH很有愛,愛到不在意利潤。
不然早就改挖其他幣。
無論ETH年底混合POS/POW時代
是怎麼出塊難度如何暴增(不確定多嚴重)
礦工老早就知道ETH雖好賺,只能拼短期回本。長期得換幣挖。
沒有人真正在意明年後年怎麼用現在的卡
繼續挖ETH....
若不挖ETH也不代表礦潮結束,因為還有
很多不同的幣。
3. 下滑原因
GPU內部有個TLB,類似內部Cache,
用來加速記憶體位址的存取轉換,
這個Buffer.容量不大,當資料變大,
其效率就緩緩下滑。影響程度多寡,
看硬體設計與記憶體配套而定。
但由於上述2。
與其考慮什麼卡能長期算力不太下滑,
不如什麼卡最快短期回本。
硬體賺回本以後,才是真正在挖礦賺錢。
沒回本以前日均挖多少錢都是假的。
說獲利高於電費就算賺,是人家已回收成本才能這樣講。
說穿了萬一2個月內萬一幣值崩盤,
長期低利潤,賺不回顯卡成本,你還在意DAG大小嗎?
所以先拼短期回本才是立於不敗之地。
連3個月後幣值高低都沒人知道。
至於明後年以後是換什麼礦,以後再說。
只看短期就好,能撈就撈。
--
根本不用擔心3-4GB不夠,
在那之前你很可能早就換幣挖了.....
二手版有少數人開始賣礦卡,應該只是看衰幣值下滑與全網算力快速增加,
(各幣幣值彼此連動,一跌是全跌...)
影響後續獲利。
跟DAG導致未來顯核算力下滑可能
沒明顯關係,因為還有其他更嚴重因素
比這更早出現。
1. 現在即使賣卡,今年也沒有算力CP值 更高的卡能換了。
(賣卡不是想換長期算力較不受影響的,應該是就放棄不挖了)
2. DAG影響算力問題,類似假議題。
因為ETH以太幣年底就打算逐步轉換POS。 這個影響遠比算力下滑嚴重。
可能也等不到算力降到挖不動而換卡。
早就被迫換幣挖。
ETH離年底轉換POS只剩幾個月好時光。所以DAG明後年變大可以說重要,
但也可以說完全不重要....
因為你可能不會挖這麼久。
除非你對ETH很有愛,愛到不在意利潤。
不然早就改挖其他幣。
無論ETH年底混合POS/POW時代
是怎麼出塊難度如何暴增(不確定多嚴重)
礦工老早就知道ETH雖好賺,只能拼短期回本。長期得換幣挖。
沒有人真正在意明年後年怎麼用現在的卡
繼續挖ETH....
若不挖ETH也不代表礦潮結束,因為還有
很多不同的幣。
3. 下滑原因
GPU內部有個TLB,類似內部Cache,
用來加速記憶體位址的存取轉換,
這個Buffer.容量不大,當資料變大,
其效率就緩緩下滑。影響程度多寡,
看硬體設計與記憶體配套而定。
但由於上述2。
與其考慮什麼卡能長期算力不太下滑,
不如什麼卡最快短期回本。
硬體賺回本以後,才是真正在挖礦賺錢。
沒回本以前日均挖多少錢都是假的。
說獲利高於電費就算賺,是人家已回收成本才能這樣講。
說穿了萬一2個月內萬一幣值崩盤,
長期低利潤,賺不回顯卡成本,你還在意DAG大小嗎?
所以先拼短期回本才是立於不敗之地。
連3個月後幣值高低都沒人知道。
至於明後年以後是換什麼礦,以後再說。
只看短期就好,能撈就撈。
--
Tags:
數位貨幣
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