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LBJM
02-21-06, 03:39 PM
http://www.dailytech.com/article.aspx?newsid=907

We've uncovered some details about NVIDIA's upcoming GeForce 7900GT

Surprise, surprise – here is NVIDIA's upcoming GeForce 7900GT. NVIDIA’s newest GPU, dubbed G71, will debut at CeBit 2006 in Hannover in a few weeks.

NVIDIA's new 7900GT is expected to use new Samsung GDDR3 memory that's reported to be operating at 1.4ns but frequencies are unconfirmed at this point. In contrast, ATI's X1800XT uses GDDR3 memory with a 1.2ns time running at 1400MHz. NVIDIA's 7800GTX 512 uses memory running at an effective rate of 1.7GHz.

We have a few images of the 7900GT from NVIDIA (right). The 7900GT will feature a single slot cooling design, although the cooler demonstrated in the images we captured is not the stock cooler that will appear on the final design. An interesting engineering element on the reference board includes a set of 4-pin leads for what we are told is for an audio jack -- or at least the leads for an audio jack. If it is indeed an input for audio signals (appears to be SPDIF), then for upcoming graphics cards that boast HDMI connectivity, this would definitely make sense. As for the current reference design, there is no such connector featured and we will have to wait for final designs to see what happens.

NVIDIA roadmaps have confirmed to us that the 90nm 7900GT will feature 24 pipelines with a 450MHz core clock. Like the GeForce 7800GTX series, the 7900GT comes with this warning:

Note: For two GeForce 7900 GT-based graphics cards running in NVIDIA SLI configurations, a minimum 450W system power supply (with 12V rating of 26A) is recommended.

Quick specifications for GeForce 7900GT from NVIDIA documents:

* PCIe native
* 450MHz core frequency
* 256-bit memory interface
* 40GB/sec. memory bandwidth
* 11B pixels/sec. fill rate
* ~900M vertices/sec.
* 24 pixels per cycle
* Built in dual-link DVI support for 2560x1600 resolution

More to come.

CaptNKILL
02-21-06, 04:04 PM
http://www.nvnews.net/vbulletin/showthread.php?t=65250

Im not real convinced that this article is reliable...

hemmy
02-21-06, 06:56 PM
why is everyone doubthing...

CaptNKILL
02-21-06, 07:04 PM
why is everyone doubthing...
Because the card looks like a 7600GT and they changed the specs in the article at least once while still saying that the info came from "NVIDIA Documents". Obviously if the info came from documents, it wouldnt change. I think these are probably realistic specs but I wouldnt tell anyone that theyre real or accurate.

agentkay
02-21-06, 07:33 PM
why is everyone doubthing...

The die is way too small to have more than 300 million transistors (24 pipes). "Maybe" its the 7900 PCB but the die itself doesn´t look like it at all. Addionally, I remember the "leaked" die shots from the 7600 last month, and they are "exactly" the same as these.

Darkoz
02-22-06, 03:41 AM
I'd be very skeptical about that article, especially the pics.
It indeed does look like a 7600GT, and they mention the heatsink but no pictures of it.
Also I don't know what they're looking at but, I certainly don't see an audio connector on the card, it looks just like a fan connector to me.

CaptNKILL
02-22-06, 10:46 AM
Also I don't know what they're looking at but, I certainly don't see an audio connector on the card, it looks just like a fan connector to me.
They were referring to the 4 solder points on the board (in a row, right near that fan connector). Thats usually where audio connector pins are placed, but it could be anything.