OK running the XP2000+ at it's proper 133mhz FSB, with 512mb of DDR400 (single channel), and the R9600P running at stock (400/300), these are what I got;
<A HREF="http://img106.exs.cx/img106/5715/hl2_Settings.jpg" target="_new">Settings</A>
<A HREF="http://img106.exs.cx/img106/249/hl2_1.jpg" target="_new">Screenie 1 After clocking a flying thing</A>
31fps
<A HREF="http://img106.exs.cx/img106/4035/hl2_2.jpg" target="_new">Screenie 2 Next flying thing same hallway</A>
40fps
<A HREF="http://img106.exs.cx/img106/5315/hl2_3.jpg" target="_new">Screenie 3 Looking at pipe with Light ON</A>
89fps
<A HREF="http://img106.exs.cx/img106/7233/hl2_4.jpg" target="_new">Screenie 4 Looking at pipe with Light OFF</A>
116fps
<A HREF="http://img106.exs.cx/img106/3153/hl2_05.jpg" target="_new">Screenie 5 Fighting a flyer in the area before unleashing mayhem</A>
51fps
<A HREF="http://img106.exs.cx/img106/8884/hl2_06.jpg" target="_new">Screenie 6 Start the most stressful scene I played (BOOM!)</A>
16fps
<A HREF="http://img106.exs.cx/img106/1623/hl2_07.jpg" target="_new">Screenie 7 Continued explosions</A>
11fps
<A HREF="http://img106.exs.cx/img106/6285/hl2_08.jpg" target="_new">Screenie 8 Calming down a bit</A>
19fps
<A HREF="http://img106.exs.cx/img106/1729/hl2_09.jpg" target="_new">Screenie 9 The Final Ka-Boom</A>
31fps
<A HREF="http://img106.exs.cx/img106/6198/hl2_10.jpg" target="_new">Screenie 10 View of the Water reflection just below the room of mayhem</A>
85fps
That one room was just killer. When playing I found I noticed slowdowns @1024x768, but just dropping it slightly to the 960x720 gave me very little instance of lag, except of course that whole ton of barrels blowing up simultaneously.
Hope that helps.
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