Geforce 9900 GTX: Two 7900 GTX can’t be bad
Geforce 9900 GTX: Two 7900 GTX can’t be bad [Source]

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Nvidia Fermi: To be fair, a functionable card was indeed used to run a demo but this one presented by the Nvidia CEO definitely is a fake.
Nvidia Fermi: Once more the proof: No chip is mounted.
The Batmobile, the original without Radeon modding
The Batmobile, this timel powered by Radeon HD 5800
The Batmobile, the original without Radeon modding
The Batmobile, this timel powered by Radeon HD 5800
A newer Batmobile in Radeon Crossfire look
DirectX 11 Fake:Again and again used by websites when publishing a DirectX 11 article.
Nvidia Fake: Don't buy this graphics card at Ebay
One more Radeon HD5800 fake
The allegedly GT300 Chip Shot
PS3 Slim: Fake part 1
PS3 Slim: Fake part 2
PS3 Slim: Fake part 3
Xbox 360 Slim: Bad fake part 1
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