The PC Games Hardware (German magazine) managed to get its hands on some Chrome 430GT cards and made a short test with them.
Link
Ukratko:
* In DirectX it's on par with Radeon HD3450 and GeForce 8500
* DirectX 10 is working OK
* OpenGL is some kind of slow
* There will be a Chrome 440GTX with 512 MB GDDR3 and 128 Bit memory interface (this is very surprising and not confirmed yet!)