Graphics card upgrade or downgrade?

My brother and I recently recieved our ordered pc from pcspecialist and after giving the innards a quick check i noticed they appear to have changed my graphic scard choice from the sapphire radeon x1900xt 512mb to the Sapphire radeon x1950xt 256mb. We were wondering which was the better card (taking into account the memory as well), whether we've got an upgrade because of supply problems or ended up with a worse card for what we paid.
Part of the reason for our question is that we've noticed the 1950 is cheaper on overclockers by about £50.
Thanks.

Difficult to say really - would be game/resolution dependant.

I think the reason for the price of the X1900XT 512MB is due to rarity rather than anything else. I notice the X1900XT 512 is more expensive than the X1950XT 512MB too! (www.scan.co.uk)

If you game at super resolutions (ie a minimum of 1600 x 1200, probably higher) with all anti-aliasing on full, then the graphics card may make use of more than 256MB of memory.
If you don't - no loss, and the faster spec will benefit you.

I'll be using the system and playing games at a pretty standard 1280 x 1024 on a 19inch monitor (everything on high hopefully, being a new system) so i guess i wouldn't notice too much difference i presume between the two. It's just that i don't like to think i've been given a cheaper or worse card after i've paid for a more expensive card originally and not been told.

The x1900xt 512mb is the better card.

The extra memory speed of the x1950xt doesn't count for anything.

you are losing out in money. Tell them to refund you the difference and keep the card :)

yeh, u can prob reach the extra clock with a small overclock on the 1900xt 512, so i recon u been given a slightly worse card