Author: Peter Stayne
Date: 22:27:19 06/26/03
Go up one level in this thread
>In my tests my Athlon XP 2.5GHz beats a P4-3.38GHz, it's close but it does. But what about with an SMP rig? A review on GamePC pitting the 2 against eachother showed the Athlons not scaling well as it increased in speed, probably due to the RAM speed. >>Thirdly, games. The games I play are based off the Quake 3 engine, which favor >>the intel chips. > >This is because Quake3 doesn't use any SIMD instructions on the Athlon. The >3DNow! code is non-existant (or broken) and since it detects an AMD chip, it >doesn't use SSE. I however compiled some AMD optimized dlls for Quake3, and with >those dlls it allows an Athlon XP 2600+ to beat a P4-3.32GHz, and the XP 2.5GHz >(even 2GHz/200fsb/400DDR) blows it away... I've heard of these a ways back. but have you tried those with RTCW? Also, I was also looking toward Doom3, perhaps the same bias still holds true (there are console commands in the leaked alpha for AMD and Intel optimizations), and John Carmack has stated that the Intel chips were leading performance-wise on Doom3 (one of the main reason is the intense level of detail demands higher bus speeds). >>Fourthly, my 3d Studio Max runs much faster on Xeons than MP's. >I'll try to test this when I get the chance. In all of my rendering tests the >Athlon blows the P4 away, in both Povray and YASRT. Also there is a program >called "Realstorm", which is software realtime raytracing/rendering. The Athlon >blows the P4 away there too (www.realstorm.com). From seeing some P4-3GHz C >(200/800fsb) results, and comparing it to my results, the P4 would have to run >over 4GHz and 263/1050fsb to equal my score. I submitted my results and you will >be able to compare them (or I can send them to you directly) when realstorm.com >updates their database. Well, all my stuff is in 3D Studio Max. I greatly enjoy using it. It wouldn't matter to me much how that turns out. I agree there is a general bias against AMD out there though. The Inquirer ran a great (and LONG article) about how the Opterons simply spank the Xeons in all server benchmarks, but yet, the mainstream media almost completely snubs it.
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