Not at all. Even a change from 1GB to 2GB of RAM makes about 0.2 to 0.1 difference, let alone 512MB.
Do some Googling for GTS 250 WEI scores, along with GTX 275, 280, 285, and 295 (which is two 280s in one card). And you'll soon see that yours is way off. In fact, no 2xx series card should get 6.9 or higher, unless it was SLI with Vista, and even then, the WEI score isn't supposed to be affected by SLI.
Let me give you some examples:
GTX 260 = 5.9 (multiple reports of the same number)
Even 8800 GTX is coming in around 5.8 to 5.9
This is from multiple sources, including
Post your WEI Score - Page 21 - nV News Forums and this forum's WEI posting thread as well.
Even others report 5.9 for similar CPUs to yours (Processor Intel(R) Core(TM)2 Quad CPU @ 2.66GHz) that you list at 7.3. An overlcocked Core i7 is going to get 7.something, not a Core 2 Quad.
Sorry, have to call BS on your WEI scores. Multiple other reports don't lie.
:huh: :shock: 
