Google Tensor X1大核能耗比出爐QQ - 手機討論

By Linda
at 2021-11-03T09:28
at 2021-11-03T09:28
Table of Contents
※ 引述《c52chungyuny (intel inside)》之銘言:
: https://i.imgur.com/eU1uk17.png
: 推特評測(Youtube 4萬多訂閱)
: 表示
: Google Tensor的X1內核能耗比落後
: 獵戶座2100與驍龍888
: https://i.imgur.com/jNDBiLT.png
: 可以綜合幾點:
: 1. Pixel的X1“能耗比”低於888與獵戶座2100的X1
: 2. Pixel 5nm X1“能耗比”只贏去年獵戶990上的7nm三星M5(造成三星高層怒砍cpu部門的架構)
: 3. Pixel的X1頻率對比其他家 X1 頻率最低, 分數也最低但功耗最高!
: 至於GPU就真的調的不錯, 相對來說
: 7.3瓦達到124FPS (能效比17)
: 最強則是865的Adreno 650
: 3.6瓦達到89FPS (能效比24.7)
: https://i.imgur.com/5bSxI6q.png
: _________________
https://www.anandtech.com/show/17032/tensor-soc-performance-efficiency
昨晚 AnandTech 也發了測試報告
Tensor X1 的主要缺點在 memory latency 比 888 的 X1 差
而因為較大的 L2,某些測試上佔有優勢
因此可能是設計上的取捨
因為整體速度比較慢,要花較多時間完成工作,所以消耗較多電力
另外也和 Exynos X1 一樣有明顯的溫度限制機制
將溫度降到 11°C (應該是環境溫度?), X1 才能持續在最快頻率運作
這文章中也批評 A76 核心大概只有 Exynos 990 A76 的等級
雖然可能因製程進步而省電,但比起旗鑑的 A78 效能還是有一段差距
而且平常UI等工作都在這顆跑,沒加強它似乎有點怪?
A55 的 L3 latency 比 888 A55 好,
可是和 Exynos 過去幾顆 A55 一樣有耗電的問題
因此雖然 Tensor A55 速度比其他A55好,一比起能原效率就輸人了:
Tensor: 10212J
Exynos 2100: 9354J
S888: 5896J
D1200: 3888J
他也不滿意 GPU 設計,塞了比 Exynos 2100 更多核心,可是兩者又用相同製程
又沒有降頻省電。所以有些情況下第一次都沒辦法全速
(電量約9w-10w) 跑完,中途就會降速。因此很難跑出理論值。
NPU 部分看起來就比較滿意了
雖然用的能源較多,但是效率不錯,所以反而比較快完成工作
平均下來效率比其他人好
--
--
: https://i.imgur.com/eU1uk17.png

: 表示
: Google Tensor的X1內核能耗比落後
: 獵戶座2100與驍龍888
: https://i.imgur.com/jNDBiLT.png

: 1. Pixel的X1“能耗比”低於888與獵戶座2100的X1
: 2. Pixel 5nm X1“能耗比”只贏去年獵戶990上的7nm三星M5(造成三星高層怒砍cpu部門的架構)
: 3. Pixel的X1頻率對比其他家 X1 頻率最低, 分數也最低但功耗最高!
: 至於GPU就真的調的不錯, 相對來說
: 7.3瓦達到124FPS (能效比17)
: 最強則是865的Adreno 650
: 3.6瓦達到89FPS (能效比24.7)
: https://i.imgur.com/5bSxI6q.png

https://www.anandtech.com/show/17032/tensor-soc-performance-efficiency
昨晚 AnandTech 也發了測試報告
Tensor X1 的主要缺點在 memory latency 比 888 的 X1 差
而因為較大的 L2,某些測試上佔有優勢
因此可能是設計上的取捨
因為整體速度比較慢,要花較多時間完成工作,所以消耗較多電力
另外也和 Exynos X1 一樣有明顯的溫度限制機制
將溫度降到 11°C (應該是環境溫度?), X1 才能持續在最快頻率運作
這文章中也批評 A76 核心大概只有 Exynos 990 A76 的等級
雖然可能因製程進步而省電,但比起旗鑑的 A78 效能還是有一段差距
而且平常UI等工作都在這顆跑,沒加強它似乎有點怪?
A55 的 L3 latency 比 888 A55 好,
可是和 Exynos 過去幾顆 A55 一樣有耗電的問題
因此雖然 Tensor A55 速度比其他A55好,一比起能原效率就輸人了:
Tensor: 10212J
Exynos 2100: 9354J
S888: 5896J
D1200: 3888J
他也不滿意 GPU 設計,塞了比 Exynos 2100 更多核心,可是兩者又用相同製程
又沒有降頻省電。所以有些情況下第一次都沒辦法全速
(電量約9w-10w) 跑完,中途就會降速。因此很難跑出理論值。
NPU 部分看起來就比較滿意了
雖然用的能源較多,但是效率不錯,所以反而比較快完成工作
平均下來效率比其他人好
--
--
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