AMD To Launch Radeon HD4890 "RV790" In April

[LordEC911]

If it doesn't have a separate shaderclock domain the shaders won't scale.
Maybe thats the reason why 13% higher clocks means 6% performance boost.


HD4890 is listed in Holland
http://tweakers.net/pricewatch/23669...dr5-pci-e.html

Huh? It will still scale linearly since the core speed would increase the ROPs, TMUs and shaders.
That 6% increase is supposedly clock vs clock.

Curious maybe someone can explain but why does the ATI card only have 256-bit memory interface, It has a bit more ram than the GTX yet the GTX has 448-bit memory interface?

GDDR5. They can have a 256bit interface and still have similar bandwidth vs the wider buses on the G200 and GDDR3.