ATI's New High End and Mid Range: Radeon X1950 XTX & X1900 XT 256MB
by Derek Wilson on August 23, 2006 9:52 AM EST- Posted in
- GPUs
Half-Life 2: Episode One Performance
Episode One of the new Half-Life 2 series makes use of recent Source engine updates to include Valve's HDR technology. While some people have done HDR that won't allow antialiasing (even on ATI cards), Valve put a high value on building an HDR implementation that everyone can use with whatever settings they want. Consistency of experience is usually not important enough to developers who care about pushing the bleeding edge of technology, so we are very happy to see Valve going down this path.
We use the built-in timedemo feature to benchmark the game. Our timedemo consists of a protracted rocket launcher fight and features much debris and pyrotechnics. The source engine timedemo feature is more like the nettimedemo of Id's Doom 3 engine, in that it plays back more than just the graphics. In fact, Valve includes some fairly intensive diagnostic tools that will reveal almost everything about every object in a scene. We haven't found a good use for this in the context of reviewing computer hardware, but our options are always open.
The highest visual quality settings possible were used including the "reflect all" setting which is normally not enabled by default. Antialiasing was left disabled for this test, and anisotropic filtering was set at 8x. While the Source engine is notorious for giving great framerates for almost any hardware setup, we find the game isn't as enjoyable if it isn't running at at least 30fps. This is very attainable even at the highest resolution we tested on most cards, and thus our target framerate is a little higher in this game than others.
Most of the solutions scale the same in Half-Life 2: Episode 1, with the possible exception of the 7900 GTX SLI setup hitting a bit of an NVIDIA driver inspired CPU limitation at 1280x1024. We can't really complain, as scoring over 200 fps is really an accomplishment in itself. With scores like these across the board, there's no reason not to run with AA enabled.
With even the slowest tested solution offering over 50 FPS at 2048x1536 4xAA, gamers playing HL2 variants can run with any of the high-end GPU solutions without problem. ATI does manage to claim a ~10% performance victory with the X1950 CrossFire over the 7900 GTX SLI, so if the pattern holds in future episodes ATI will be a slightly faster solution. The X1900 CrossFire configuration was also slightly faster than the SLI setup, though for all practical purposes that matchup is a tie.
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JarredWalton - Thursday, August 24, 2006 - link
Anisotropic filtering was enabled in all tests at 8xAF as far as I know. When we use antialiasing, we generally enable anisotropic filtering as well.LoneWolf15 - Thursday, August 24, 2006 - link
Looks like there's no HDCP support or HDMI connector added like I'd expect with a brand new top-end card. And, they didn't add the new quieter cooler to the X1900XT. Pity. I doubt it would cost ATI more, and it'd up the sale of cards since people hate the noisy fan ATI has been currently using.I'll pass. My older (by alpha-geek standards) X800XL does the job fine.
P.S. -1 for not doing any bench tests with Elder Scrolls: Oblivion.
DerekWilson - Saturday, August 26, 2006 - link
also, all of these cards have HDCP support -- which I believe I mentioned somewhere in there. HDMI is up to the vendor.JarredWalton - Thursday, August 24, 2006 - link
+2 You might want to read page 8.LoneWolf15 - Thursday, August 24, 2006 - link
I don't know what's going on, I must have been blind. My apologies there, Jarred.Dfere - Thursday, August 24, 2006 - link
You just can't always eat your cake and then have it left over.YOu should change your phrase from "Sometimes we can have our cake and eat it too"
to "Sometimes we can eat our cake and have it too"
poohbear - Thursday, August 24, 2006 - link
the established exnglish expression is "you cant have your cake and eat it too", even if it doesnt make logical sense. There are many words and expressions that dont make sense in english (driveway, football, highway). Im guessing you're not a native english speaker, but that's the way the language is. now, please post about technology and not the logic of english expressions.Griswold - Thursday, August 24, 2006 - link
Whats wrong with football? Or do you mean american "football"?poohbear - Thursday, August 24, 2006 - link
can anyone confirm if those power consumption tests are for the entire system or just the vid cards? the highest figure was 267wts: a high end system that consumes 267wts underload is sweet! can you confirm that is indeed for the entire system (cpu, mobo, hdd, vid card... everything). thanks.JarredWalton - Thursday, August 24, 2006 - link
I'm pretty sure that this is power use for the entire system, but Derek's results are quite a bit lower than what I got on the ABS system I tested last week for X1900 CrossFire. Of course, the water cooling and extra fans on the ABS system might add a decent amount of power draw, and I don't know how "loaded" the systems are in this test. I would guess that Derek ran Splinter Cell: Chaos Theory for load conditions.