Angående HD5830: Tror det är X-bit labs som dragit slutsatsen att HD5830 har en konstig konstruktion som gör att en del av grafikkortet får ta del av 256 bit medan en annan del endast får tillgång till 128 bit. Detta resulterar i att det ibland presterar som HD5770, ibland som HD5850.
Edit: Lite fel, det var ett diskussionsinlägg på X-bit labs.
"I think ATI is lying to us, according to the chip design is they cut 16 ROP's the remaining ROP's have only access to 128 bits of memory. THU and shaders probably still have access to 256 bits of memory. and thats why this card acts sometimes like 5770 and sometimes like 5850, and whats more surprising - even 4890 is better sometimes.
It's not a 256 bit memory card but a 128/256 bit card"
- http://www.xbitlabs.com/discussion/6033.html
