ANANDTECH 評測三星S9/S9+ s845 vs 9810 - 手機討論

By Edwina
at 2018-05-21T04:19
at 2018-05-21T04:19
Table of Contents
※ 引述《BadGame (人生 歡樂易忘卻執著痛苦)》之銘言:
: ANANDTECH 繼續研究 三星9810 Part1
: Improving The Exynos 9810 Galaxy S9: Part 1
: https://www.anandtech.com/show/12615/improving-exynos-9810-galaxy-s9-part-1
: 如果是把 M3鎖核固定在 1.8GHz,跑起來那Spec2006的成績達到預期
: 性能真的跟S845 跑2.7GHz 類似,能效還比較好一點點
: 可見三星有注意到,4核鎖1.8可是調度太差了,不用原本的調度,鎖住反而表現比較好
: 而且鎖在1.8GHz 連跑PCMark成績大部分也都進步,Wifi續航也增加
: 這個後續應該還會繼續研究調度吧 鎖在2.1會不會更好發揮?
: 不過M3依然有的缺點,跑高頻的性能增加非線性,功耗會爆炸
: 具體應該還是要看三星後面怎麼改善
: --------------------------------------------------------------------------
: 這篇有寫一些對於9810的想法 有點難讀
: http://tieba.baidu.com/p/5634940880?see_lz=1
: 這篇是對岸討論
: http://tieba.baidu.com/p/5633391777
其實Anandtech已經算對E9810做了非常深度的評測了
用整整三篇完整報導來分析:
小弟簡單整理一下:
下面我們只看PCMark
然後選了
Web Browsing
Writing
Data Manipulation
Photo Editing
這四個指數,每個指數比重相同可看成25%
首先是原始三星的設定:
https://imgur.com/bSBHhIt
https://imgur.com/oMRX7rO
https://imgur.com/6K3Cagi
https://imgur.com/Ahhv6dK
綜合四個平均加總後
結果低了令人驚奇,Exynos 9810大概只有S845的54%的效能
只有一半。甚至兩代前的S821(Google Pixel)效能都比他高了15%
Anandtech分析後發現E9810有一個嚴重的問題
小核切換到大核心後調頻非常緩慢
相較於S845只需要65ms來說,E9810需要840ms
https://imgur.com/MAguDUC
比較悲哀的是這牽涉的晶片設計的本身物理極限
所以不是DVFS或軟體修改一下就可以改變的
https://imgur.com/BH8vxoj
再來Anandtech作了一些分析,定了第一個狀況
假如我們把E9810大核定頻在1.8ghz然後完全不調頻
避免掉調頻緩慢的問題,這樣效能會是如何呢?
至於為何把頻率定成1.8ghz的原因是這樣
https://imgur.com/Y3M3pvI
在分析過後,我們發覺1.8ghz的E9810提供的每瓦效能
跟S845非常接近,甚至還稍微領先了S845一些些
所以我們就把頻率訂在1.8ghz
很多人誤解說1.8ghz的E9810跟2.8ghz的S845效能差不多
其實這是錯誤的。是1.8ghz的E9810跟一顆標準的S845每瓦效能相仿
而S845也不是跑2.8ghz,是由DVFS運作最高時脈可以到2.8ghz的狀況
效能測試狀況是這樣的
https://imgur.com/8eSULPg
https://imgur.com/7c9d3cP
https://imgur.com/hzjScS6
https://imgur.com/51I29SO
效能還真的有小幅的提升,可是依舊比S845慢得很多
大約是S845的57.4%效能。但跟S821相比已經接近一些
大約是S821的93%的效能。可以算是跟S821同等效能了
再來Anandtech把E9810定頻到2.3ghz,這是E9810四核心同時啟動的最高頻率
效能是大幅改善了不少
https://imgur.com/81RfibP
https://imgur.com/C0TfAuZ
https://imgur.com/FlKfJZq
https://imgur.com/snvoPbR
這時可以達到的效能已經超過S821一些,大概是S821約118%的效能
也跟S845差距拉的小很多,大概有S845的78%效能
只是此時功耗跟待機一定是變差的
大概是這樣
https://imgur.com/v4PWSX0
可是如果不過熱的話,這樣的明顯效能提升
我自己倒是願意犧牲續航的
因為其實原本的E9810續航就已經不太好了
不如乾脆放棄這項去成就好得多的效能也是一個選擇
Anandtech這樣做我想是去評估M3假如不被熱量跟調頻緩慢拖累的話
真正可以做到的實際效能
當然這種設定或許三星根本不會採用
而且採用的話代表增加的小核心更本沒意義只是浪費空間
可是起碼提供了一個分析個方式跟觀點
小弟整理出來給大家參考
E9810 PCMark設定效能大約是S845的54% S821的85%
定頻在1.8ghz放棄調頻大約是S845的57.4% S821的93%
定頻在2.3ghz放棄調頻大約是S845的78% S821的118%,已經高於S821
--
: ANANDTECH 繼續研究 三星9810 Part1
: Improving The Exynos 9810 Galaxy S9: Part 1
: https://www.anandtech.com/show/12615/improving-exynos-9810-galaxy-s9-part-1
: 如果是把 M3鎖核固定在 1.8GHz,跑起來那Spec2006的成績達到預期
: 性能真的跟S845 跑2.7GHz 類似,能效還比較好一點點
: 可見三星有注意到,4核鎖1.8可是調度太差了,不用原本的調度,鎖住反而表現比較好
: 而且鎖在1.8GHz 連跑PCMark成績大部分也都進步,Wifi續航也增加
: 這個後續應該還會繼續研究調度吧 鎖在2.1會不會更好發揮?
: 不過M3依然有的缺點,跑高頻的性能增加非線性,功耗會爆炸
: 具體應該還是要看三星後面怎麼改善
: --------------------------------------------------------------------------
: 這篇有寫一些對於9810的想法 有點難讀
: http://tieba.baidu.com/p/5634940880?see_lz=1
: 這篇是對岸討論
: http://tieba.baidu.com/p/5633391777
其實Anandtech已經算對E9810做了非常深度的評測了
用整整三篇完整報導來分析:
小弟簡單整理一下:
下面我們只看PCMark
然後選了
Web Browsing
Writing
Data Manipulation
Photo Editing
這四個指數,每個指數比重相同可看成25%
首先是原始三星的設定:
https://imgur.com/bSBHhIt
https://imgur.com/oMRX7rO
https://imgur.com/6K3Cagi
https://imgur.com/Ahhv6dK
綜合四個平均加總後
結果低了令人驚奇,Exynos 9810大概只有S845的54%的效能
只有一半。甚至兩代前的S821(Google Pixel)效能都比他高了15%
Anandtech分析後發現E9810有一個嚴重的問題
小核切換到大核心後調頻非常緩慢
相較於S845只需要65ms來說,E9810需要840ms
https://imgur.com/MAguDUC
比較悲哀的是這牽涉的晶片設計的本身物理極限
所以不是DVFS或軟體修改一下就可以改變的
https://imgur.com/BH8vxoj
再來Anandtech作了一些分析,定了第一個狀況
假如我們把E9810大核定頻在1.8ghz然後完全不調頻
避免掉調頻緩慢的問題,這樣效能會是如何呢?
至於為何把頻率定成1.8ghz的原因是這樣
https://imgur.com/Y3M3pvI
在分析過後,我們發覺1.8ghz的E9810提供的每瓦效能
跟S845非常接近,甚至還稍微領先了S845一些些
所以我們就把頻率訂在1.8ghz
很多人誤解說1.8ghz的E9810跟2.8ghz的S845效能差不多
其實這是錯誤的。是1.8ghz的E9810跟一顆標準的S845每瓦效能相仿
而S845也不是跑2.8ghz,是由DVFS運作最高時脈可以到2.8ghz的狀況
效能測試狀況是這樣的
https://imgur.com/8eSULPg
https://imgur.com/7c9d3cP
https://imgur.com/hzjScS6
https://imgur.com/51I29SO
效能還真的有小幅的提升,可是依舊比S845慢得很多
大約是S845的57.4%效能。但跟S821相比已經接近一些
大約是S821的93%的效能。可以算是跟S821同等效能了
再來Anandtech把E9810定頻到2.3ghz,這是E9810四核心同時啟動的最高頻率
效能是大幅改善了不少
https://imgur.com/81RfibP
https://imgur.com/C0TfAuZ
https://imgur.com/FlKfJZq
https://imgur.com/snvoPbR
這時可以達到的效能已經超過S821一些,大概是S821約118%的效能
也跟S845差距拉的小很多,大概有S845的78%效能
只是此時功耗跟待機一定是變差的
大概是這樣
https://imgur.com/v4PWSX0
可是如果不過熱的話,這樣的明顯效能提升
我自己倒是願意犧牲續航的
因為其實原本的E9810續航就已經不太好了
不如乾脆放棄這項去成就好得多的效能也是一個選擇
Anandtech這樣做我想是去評估M3假如不被熱量跟調頻緩慢拖累的話
真正可以做到的實際效能
當然這種設定或許三星根本不會採用
而且採用的話代表增加的小核心更本沒意義只是浪費空間
可是起碼提供了一個分析個方式跟觀點
小弟整理出來給大家參考
E9810 PCMark設定效能大約是S845的54% S821的85%
定頻在1.8ghz放棄調頻大約是S845的57.4% S821的93%
定頻在2.3ghz放棄調頻大約是S845的78% S821的118%,已經高於S821
--
Tags:
手機
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