真衰鬼

之前intel不是說保證haswell會很省電嗎？怎74tdp 變84？

看來這家公司的橙信實在有問題

現在有點想anti i ...
ms2e 發表於 2013-6-8 12:19

四系TDP全部84W
http://ark.intel.com/products/family/75024
但Haswell只比Ivy效能高約10%
i5-3570K vs i5-4670k
i7-3770k vs i7-4770K
大家同是22nm製程，不禁令人聯想……廠家加電壓，出廠已OC的「Ivy」？

win150

四系TDP全部84W

但Haswell只比Ivy效能高約10%


大家同是22nm製程，不禁令人聯想……廠家加電壓，出廠已O ...
真衰鬼 發表於 2013-6-8 14:51

10%只係CPU, GPU高左廿幾%
張粒Ivy Bridge加下壓, O下C會唔會勁左廿幾%

win150

之前intel不是說保證haswell會很省電嗎？怎74tdp 變84？

看來這家公司的橙信實在有問題

現在有點想anti i ...
ms2e 發表於 2013-6-8 12:19

佢應該係指mobile platform, For example 17W for Ivy Bridge U series CPU + 3W for QS77 chipset vs 15W for Haswell U series CPU+chipset
(15-20)/20 = 25% power savings 唔知係咪咁計

00006

省電同TDP有d分別, TDP只係講粒CPU最高發放既熱力, 呢個數值係比散熱設計作為參考, 用電量係另一回事

用電量亦唔可以淨係睇粒CPU, 要連埋chipset成個平台計

Haswell用左更多芯片面積做GPU, die size大左, 自然發熱都多左, 但E3 1230v3呢d冇內顯既CPU應該TDP唔會提高?
可能因為整合左voltage regulator, 唔知呢種元件發熱多唔多

jasonchan424

10%只係CPU, GPU高左廿幾%
張粒Ivy Bridge加下壓, O下C會唔會勁左廿幾%
win150 發表於 2013-6-8 16:17

其實100%對比75%係升左33.3%..

Kundera

之前intel不是說保證haswell會很省電嗎？怎74tdp 變84？

看來這家公司的橙信實在有問題

現在有點想anti i ...
ms2e 發表於 2013-6-8 12:19

"There’s more fine grained power gating, lower chipset power and the CPU cores can transition between power states about 25% quicker than in Ivy Bridge"

http://www.anandtech.com/show/70 ... 0k-i54560k-tested/2

Thermal Design Power concerns the heat rather than power. It is a requirement for cooling system to assure the MAXIMUM amount of power to be dissipated in the worst loading scenario. By the same 22nm process, Haswell has a bigger GPU than Ivy Bridge, it makes full sense to an increase of TDP. But in real world scenario it will be less likely to have both CPU and GPU full throttle all the time, the power gating and voltage control trick described in reviews are more efficient than simply forcing the TDP down but having all components wild awake. The benefit is best illustrated in the drop in idle power consumption

alfredxp

用返IVY 都OK了.

00006

"There’s more fine grained power gating, lower chipset power and the CPU cores can transition bet ...
Kundera 發表於 2013-6-8 17:35

正解! TDP唔等於用電量

不過都係解釋唔倒點解E3 1230v3 TDP會高過1230v2
既然大家disable左GPU, 咁應該GPU增加既晶片面積唔會影響TDP?
v3 TDP 80W, v2 TDP 69W

真衰鬼

10%只係CPU, GPU高左廿幾%
張粒Ivy Bridge加下壓, O下C會唔會勁左廿幾%
win150 發表於 2013-6-8 16:17

4670貴3570成200蚊是為了GPU+20%？

真衰鬼

正解! TDP唔等於用電量

不過都係解釋唔倒點解E3 1230v3 TDP會高過1230v2
既然大家disable左GPU, 咁應該GPU增加既晶片面積唔會影響TDP?
v3 TDP 80W, v2 TDP 69W
00006 發表於 2013-6-8 20:37

我懷疑Intel 自家OC 炮製