my 4 clones on 24" split 4-way equally w/ 16x10 res are capped to 20FPS. my main on 22" full window size w/ 16x10 res gets about ave. 40FPS (depending on population).
q6600 OC to 2.9Ghz, raid0 on 3 hdds, 8GB RAM, vista x64, gtx280. Vert sync enabled on wow instances.