radeon cards are the best for half life games
ATI is the GPU maker...Radeon is just a manufacturer....besides that's what we already said above...it comes down to personal pref and 4W4K3 even said it depends also on whether you're a big doom3 or HL2 fan...and to say 'half life games?' ....I was unaware of there being multiple half life games out right now....
The point is like I've said a million times to everyone in here...either card will kick *** at both games...it comes down to PERSONAL PREFERENCE...
I like Nvidia so I'd choose them regardless of HL2 performance compared to ATI's card....like newegg says 'Basing your purchasing decisions on reviews is not a good idea'.....couldn't have said it better myself.
The fact is Nvidia probably does a whole 5 FPS less than ATI in HL2 and vice versa for doom3 and nvidia, plus the fact everyones system is different, so what your system does could be entirely different to 'Toms hardware guide review!'
Go with whatever company you've enjoyed through the years.
People really need to stop buying cards based off the current games out...there's no point.
"Ohh I want nvidia for doom3" or "oh I must have ATI for HL2"...
Who cares? I want to play ALL games that are out currently and all FUTURE games....why focus on which company obviously builds a game towards their technology for marketing reasons...gotta look past all that