提前曝光迪兰恒进HD6970实物照片
256bit显存位宽，40nm工艺，1536流处理器，VLIW4，6+2+1+1相数供电，8+6pin外接供电，2GB显存
We've seen quite a few pictures of the AMD Radeon HD 6970 from its exterior, including some finer details observable. For the first time, we're getting to take a peek inside, thanks to a Chinese website that looks to be auctioning off an HD 6970 ahead of launch for a quick buck, if we're not terribly mistaken. The PCB shot reveals many details about the GPU and its board design:
[*]To begin with, the GPU indeed has a 256-bit wide memory interface, counting the memory chips on the obverse side, and looking at the size of the GPU package.
[*]The size of the die, and taken that Cayman is a 40 nm GPU, indicate that Cayman is not much bigger than Cypress, it should be about 400~500 million transistors higher compared to Cypress.
[*]Given the roughly 2500 million transistor count, the stream core count of 1536 seems more realistic. AMD is said to be using an architecturally superior VLIW4 stream processor design that increases performance per mm² die area.
[*]The board uses a high-grade 6+2+1+1 phase digital PWM voltage regulation design, draws power from 8+6 pin power connectors.
[*]The reverse side of the PCB has no memory chips, so AMD might be using 2 Gbit memory chips to get 2 GB of total memory
2G GDDR5显存，8pin+6pin供电，双CF接口，双bios
再给点照片
A卡有个大问题，流水线代价太大，当初4890要800W一个流水线，除了大品牌，基本没法介入。 终于看到图片了 做工很好 特别是核心下面 密密麻麻的元件 性能就要实际看了 wlrwyk 发表于 2010-12-13 23:37 http://bbs.52hardware.com/static/image/common/back.gif
终于看到图片了 做工很好 特别是核心下面 密密麻麻的元件 性能就要实际看了
还有组图片在lloovveerr的帖子里，P版发的裸照，供电设计很HIGH 这种图这几天太多了
只不过有人签了协议.不敢或不能爆而已.
6970吃了32nm的亏
就这样. 我觉得从580来看,费米在研发的时候还是基于旧制程的
480是受了流片和延期影响.而不是制程
个人看法,不是很懂的,呵呵~
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