希望是真的....

非常想把580換了,因為夏天到了

功耗比7970低是真的，至於是不是6+6pin我就不知道了。
我之前用的是大家看到的那個奇怪的6+8pin。

轉自techpowerup

Here are some key bits of information concerning the upcoming GeForce GTX 680, a performance single-GPU graphics card based on the 28 nm GK104 GPU by NVIDIA. The information, at face value, is credible, because we're hearing that a large contingent of the media that finds interest in the GPU industry, is attending the Game Developers Conference, where it could interact with NVIDIA, on the sidelines. The source, however, is citing people it spoke to at CeBIT.

First, and most interesting: with some models of the GeForce 600, NVIDIA will introduce a load-based clock speed-boost feature (think: Intel Turbo Boost), which steps up clock speeds of the graphics card when subjected to heavy loads. If there's a particularly stressing 3D scene for the GPU to render, it overclocks itself, and sees the scene through. This ensures higher minimum and average frame-rates.
Second, you probably already know this, but GK104 does indeed feature 1,536 CUDA cores, which lend it a strong number-crunching muscle that helps with shading, post-processing, and GPGPU.

Third, the many-fold increase in CUDA cores doesn't necessarily amount to a linear increase in performance, when compared to the previous generation. The GeForce GTX 680 is about 10% faster than Radeon HD 7970, in Battlefield 3. In the same comparison, the GTX 680 is slower than HD 7970 at 3DMark 11.

Fourth, the NVIDIA GeForce GTX 680 will very much launch in this month. It won't exactly be a **-launch, small quantities will be available for purchase, and only through select AIC partners. Quantities will pick up in later months.

Fifth, there's talk of GK107, a mid-range GPU based on the Kepler architecture, being launched in April.

Next up, NVIDIA is preparing a dual-GPU graphics card based on the GK104, it is slated for May, NVIDIA will use Graphics Technology Conference (GTC), as its launch-pad.

Lastly, GK110, the crown-jewel of the Kepler GPU family, will feature as many as 2,304 CUDA cores. There's absolutely no word on its whereabouts. The fact that NVIDIA is working on a dual-GK104 graphics card indicates that we won't see this chip very soon.

從這邊看來GK104是真的打算超到高頻跟7970 一拼

不過7970預設時脈只有925再加上隨便拉都可以上1125這樣情況下效能勝負就不一定了

感覺很像560TI對上5870..GK104還真的很奇妙阿XD

是哪個時脈耗功比7970低呢@@?

原始時脈 還是自動超頻後的時脈 好奇

我比較好奇的是月光光的人竟然會知道 ....

自動超頻是針對一些應用程式無法讓GPU滿載，發揮不出最大效能，所以將時脈拉高，前提是不超過設定的TDP。
TDP並不等同於功耗，但有一定關係。
簡單來說這個設計不是為了嬴過7970所以超頻，而是盡量讓GPU發揮最大效能。
如果應用程式原本就可讓GPU滿載，就不會再超頻。
這樣有回答到你的問題嗎？

不過不能讓GPU滿載為何不是降頻而是超頻呢?

低負荷狀態降頻已達節能效果是很正常的情況

如GPU達滿載在超頻不是更加提升效能呢??

當然這些都是CPU的觀念下的問題要套用在GPU上頭不知道適不適合

在等也沒幾天了等東西出來就知道是好貨還是面子工程了...

不過相近效能訂價能比7970低就是成功了......

要是每瓦效能能夠達到7800系列等級那就更棒了!!!!

負載低降頻操作這件事已經存在很久啦，但是如果明明在跑測試程式或吃效能的遊戲，但是GPU利用率卻不高，是不是要想辦法改善呢？
這牽涉到應用程式/遊戲是否能充分利用GPU硬體的問題。
當不能改寫遊戲，就只能想辦法讓它塞進來的指令快點做完。
GK104絕對是好貨，它的perf/w, perf/mm2都大嬴7970，但價格決定它好到什麼程度。

可是好像有不少人說它是閹割品...?