insanity

有邊隻細過32bit size program 轉 64bit無快到,同慢左幾多？
fireeye 發表於 2014-6-10 20:37

正常嘅都唔會快到
你識唔識CPU 運作？

qcmadness

有邊隻細過32bit size program 轉 64bit無快到,同慢左幾多？
fireeye 發表於 2014-6-10 20:37

Add / Shift呢類program

e.g. File Manager

qcmadness

有邊隻細過32bit size program 轉 64bit無快到,同慢左幾多？
fireeye 發表於 2014-6-10 20:37

第2類program
Device Driver

第3類program
Network software (BT類)

fireeye

正常嘅都唔會快到
你識唔識CPU 運作？
insanity 發表於 2014-6-10 20:44

無你禁熟,無分別禁你就繼續享受你的32bit program 吧！

qcmadness

無你禁熟,無分別禁你就繼續享受你的32bit program 吧！
fireeye 發表於 2014-6-10 23:32

如果32-bit既CPU快過64-bit CPU既話, 我唔介意用32-bit架

insanity

無你禁熟,無分別禁你就繼續享受你的32bit program 吧！
fireeye 發表於 2014-6-10 23:32

你講嘢可唔可以有一次係有point架
我諗你唔係無我禁熟，你係完全唔知囉

newdaylow

wanch 發表於 2014-6-10 12:59

真係幾得意，iPhone 5S ppt後，所有報導 A7吾會快過A6，手機開賣，評測真係快一倍

開賣前
http://www.extremetech.com/gamin ... improve-performance

開賣後
http://www.anandtech.com/show/7335/the-iphone-5s-review/4

究竟iPhone 5S A7 係咩野?

qcmadness

真係幾得意，iPhone 5S ppt後，所有報導 A7吾會快過A6，手機開賣，評測真係快一倍

開賣前


開賣後


...
newdaylow 發表於 2014-6-11 04:14

你確定佢快1倍全部係因為32-bit變64-bit?

http://www.anandtech.com/show/7335/the-iphone-5s-review/3

Integer performance is up 44% on average, while floating point performance is up by 67%. Again this is without 64-bit or any other enhancements that go along with ARMv8. Memory bandwidth improves by 35% across all Geekbench tests. I confirmed with Apple that the A7 has a 64-bit wide memory interface, and we're likely talking about LPDDR3 memory this time around so there's probably some frequency uplift there as well.

The result is something Apple refers to as desktop-class CPU performance. I’ll get to evaluating those claims in a moment, but first, let’s talk about the other big part of the A7 story: the move to a 64-bit ISA.

newdaylow

你確定佢快1倍全部係因為32-bit變64-bit?
qcmadness 發表於 2014-6-11 06:56

講緊快一倍，係指A6 vs A7 ，吾係32bit vs 64bit