Soleron on 06 May 2009
| Sharky54 said: @ sol, the one I posted has 1 gig DDR3 Vram, the one you posted has 512MB. What makes the one you posted have twice as fast of a GPU? |
VRAM is marketing hype. Having more doesn't generally increase performance, especially in the kind of cards that laptops get. What makes it faster is architecture and design (which can't be quantified with a number, only with benchmarks).
My logic was that the desktop 4850 is roughly equivalent to the mobile one and is about as fast as the GTS250 in benchmarks, and the mobile 9800 is half of a GTS250 by number of cores. So the mobile 4850 is theoretically twice as fast, in practice a little less.
