1600x1200 on a P3 800 with 768 RAM and a Geforce4 Ti 4600.
That's darn near minimum spec and the game is playable at better than extreme perf... Well when its not crashing due to lowsey memory management, but that has almost nothing to due with vid reso
Raids and some zones do require extreme perf with this settup.
----- The following is a brain dump of optimization info ----
EQ2 (and 3D games in general) are all about the vid card speed, vRAM and RAM, processor is hardly an issue.
Low vRAM means the vid card can hold less model and texture data so will attempt to offload some of that to standard (slower) RAM. Also, alot of 3D rendering fx are optimized by storing commonly used calculation results in vRAM, thus avoiding the need to spend processing time recalcualting the same formula.
Slow vcard means lowsey frame rates when alot of stuff is changing on screen and/or running at higher reso. Some fx will also suffer further if their optimization data can't be held in vRAM along with all the models and textures. This is why a slower card with more vRAM can perform better than a faster card with less vRAM when running some apps.
Low standard RAM means more disk swapping in general and longer zone times. Disk swapping causes lag spikes when new resources are loaded. If your vid card also has low RAM, the poblem is compounded as almost every change is pulled off the hard drive.
The last major factor is disk speed/access time. No matter how good all your other specs are, your machine will eventually need to pull data off disk. Faster seek and read times will speed data loads. This is most noticable when zoning. Isolating various proccess to seperate disks/partitions can help access time allot. If possible, issolate your OS to its own disk or partition. Also give your swap file its own little dedicated partition.
Processor and bus speed are usually the least important and the most expensive to upgrade. Even the cheepest machines sold in the last 4 yrs have good enough specs. However, if most of your components are near minimum spec, you might get a bigger performance boost for your buck buying a new packaged deal.
In order of importance:
1) vCard (you want at least 128 vRAM and all the speed you can afford)
2) RAM (512 is hardly playable, 768 is tolerable, 1 gig is highly recomended, more than 2 gig is a marginal improvement)
3) Hard Drive (7200+ RPM with EQ2 running on a partition no larger than 80gig defragged regularly) Its best to have EQ2 installed on a seperate physical drive than your OS.
Of course there are cost tradeoffs to make. If you have to choose, always upgrade whatever component is closest to minimum spec. You'll get more bang for your buck upgrading from 512 RAM to 2 gig than from a 128 vcard to 256 even though your vCard has the biggest impact in general.
Allot of disk optimization can be done for free, just takes time and some way to backup any data you don't want to loose reformatting. If you have a free drive bay, you can pickup an extra drive cheep and avoid much of the reformat hassle
