ATi Cards naming ? Class vs Memory

Hello all
guys I'm really confused, I'm looking for gaming laptops and I get confused when it comes to graphics card

I found laptops with ATI X700 - 256 MB and another one with ATI X1600 - 256 MB

I can't really decide which is better, I read article about GeForce naming cards which can really help me determine the class of the card (gaming, business,..etc)

Sometimes I find graphics cards with high memory but they tell me that it's not suitable for gaming, I really can't know which is better

the X*** series is the generation behind the X1*** series. I'd go with the newer tech for gaming. but if you were to play games like WoW... the x700 will do JUSt fine

The X1600 is your best bet as it supports sm3.0And contrary to popular belief,it's not that bad of a gpu for the X1 series either.Goodluck.

Dahak

AMD X2-4400+@2.6 S-939
EVGA NF4 SLI MB
2X EVGA 7800GT IN SLI
2X1GIG DDR IN DC MODE (soon 2b crucial balistix ddr500)
WD300GIG HD
EXTREME 19IN.MONITOR 1280X1024
THERMALTAKE TOUGHPOWER 850WATT PSU
COOLERMASTER MINI R120

Well the only difference in the cores would be for overclocking and slight power/heat improvements with strained silicon. The miniscule boost in the core speed isn't worth the difference from the start, and not worth hunting for IMIO, but if you've got both options easily accessible for the same solutions (like and ASUS or ACER laptop) then sure o with the MRX1700, but in general very little difference.

The biggest thing to watch out for with these is that many of the OEMs underclock the cards to improve battery life and reduce heat, so sometimes you'll see wildly different results from the same chips, and unexpected wins.

Jst something to consider.