The card is the same size as 512MB version, 9-inch card. It has 16 memory chips, eight on the front and eight on the back, Samsung memory chips that are rated at 0.9ns, which should theoretically give 1,111MHz. The "guess2098" Coolaler.com forum member managed to overclock it from default 743MHz to 858MHz for the core and from 1000MHz to 1153MHz for memory.
Some 3DMark results are posted, and the system used is "Core 2 Extreme Kenstfield Q6850 at 4GHz, Asus P5K-D, GSKILL 2GBHZ at 1000 CL4, TT 1200W PSU, TR 120-X".
@743/1000
3Dmark01.......................68753
3Dmark03.......................39360
3Dmark05.......................22842
3Dmark06.......................12944
@OC 858/1153
3Dmark01.......................69669
3Dmark03.......................43351
3Dmark05.......................23978
3Dmark06.......................14439
[Denny]ATi HD 2900XT 1GB GDDR4 9.5" 圖多 - Coolaler BB滄者極�討論�
Radeon HD 2900 XT 1GB GDDR4