ATI Radeon HD 4000 Series discussion

[Hornet331]

Nah.
That "1800m" is DDR-1800 (900MHz). But since GDDR5 is quad data rate 900MHz GDDR5 acts effectively as DDR-3600.

it depends on what your looking at, gddr5 has 2 clocks, command clock and write clock, comand clock is typical half of write clock, so a 900mhz command clock is a 1800mhz write clock which is a 3,6gb/s (aka 3600mhz) module.

As said its still the lowest bin, qimonda official doesnt even sell those, so its very strangeto see this...