ATI Mobility Radeon X1800XT vs ATI Mobility Radeon X1900
ATI Mobility Radeon X1800XT► remove
More pipelines and a faster clockspeed enable the X1800XT to have more performance than the X1800 and make it therefore good for elder DirectX 9 games. It is comparable with NVIDIA GeForce Go 7800 GTX.
Benchmark: notebookreview.com (engl)
ATI Mobility Radeon X1900► remove
At the moment, the ATI Mobility Radeon X1900 is the top video card from ATI for notebooks. The performance is better than X1800 / 7900GS. Due to heat problems the marketing was delayed but now this problem seems to be fixed. According first reports it is about 12% faster than a X1800 (Alienware configurator). The performance in our tests was about as fast as the Nvidia 7900 GS.
The X1900 is a enhanced X1800 produced in 80nm. The 36 Pixel Shader count like 12 pipelines from Nvidia cards.
The AVIVO technology allows the chip to accelerate H.264, DivX, MPEG-2, MPEG-4, WMV9, and VC-1 videos.
|ATI Mobility Radeon X1800XT||ATI Mobility Radeon X1900|
|Mobility Radeon X1000 Series|
|16 / 8||36 / 8|
|Core||550 MHz||400 MHz|
|Memory||650 MHz||470 MHz|
|Bus||256 Bit||256 Bit|
|DirectX||DirectX 9c, 3.0||DirectX 9c, 3.0|
|Technology||90 nm||80 nm|
|Max. Memory||256 MB|
|Features||Avivo Video and Display Engine. 12 pixelshaders are regulated by 3 cores; Powerplay 6.0|
|312 Millionen Transistoren, 80nm, PCI-E 16x, MXM-III odul|