Thanks to its 3-way SLI support and 1GB of onboard memory, the ECS GeForce GTS 250 is a very interesting product. The decent amount of memory and flexible SLI support mean you should be able to build a solid gaming machine without spending mega bucks for high-end cards.
Comparing the GTS 250 to ATI’s 4850 along with the older 9800GTX+, the GTS 250 is faster overall. At the same time, the GTS 250 also sports a much smaller PCB size and lower cost, which makes it a great buy for those on a budget as well as for those interested in building a compact PC.

http://www.tbreak.com/2009/06/ecs-geforce-gts-250/