good system but low FPS

[VJVertex]

Hi,

i have some problems with the fps, if i play 5 clips simultaneously my FPS decreases to ~ 16 - 20.
using Resolume 3.1.3, but i think it´s not my System:
CPU: AMD 1055T (6 Cores @ 2.8Ghz)
Board: MSI 890GXM-G65
RAM: Mushkin 8 GB DDR3-1600
Grafic 1: Zotac GTX 260² (for output, PCIe 2.0, 8 lanes)
Grafic 2: Zotac 9500GT (for desktop, PCIe 2.0, 8 lanes)
SSD: Intel Postville 160GB (for OS and small Clips)
HDD: WD BlackCaviar 640GB via USB 3.0 (for music videos and big clips)
PSU: OCZ Fatal1ty 550 W
OS: Win 7 Ultimate X64
Controller: APC40 + Bome Pro

on my notebook i have only core2duo with 2Ghz and 2GB RAM, only one 8600GT 512 MB and i have nearly the same FPS, but this System is crap against the other one - where is the problem? Missing hardware support? Graficcard to small, not enough VRAM?

[VJair]

are you using the DXV codec?

[VJVertex]

yes, first i installed the resolume codec pack. I use the latest Quicktime, Flash and also (parallel) Arkaos NuVJ (for Musicvideos), maybe this other programm installed "bad" codecs?!

[werlin]

and there are only clips playing? no fx? (wrapped freeframe's 1.0 can drop fps like crazy)
and the dxv of the clips is the same you have decoding them? (i've experienced some problems reading dxv1 encoded clips, with dxv2 installed, not fps related though)

[sleepytom]

what size (in pixels) are the clips?
what datarate (in MB/second) are the clips?
what format (mov/avi?)
codec?
what size compositions are you running?


seems likely to be a harddrive access time issue (compound datarate too high for your system) - USB is crap for harddrives - use eSATA or internal drives.
Ideally you should use a high performance SSD for your media. Using multiple layers of high resolution DXV+Alpha needs some serious disk access.

Also watch out for your older GPU dragging performance down. Try running just your better card in the machine and see if things improve.