Hey, hope im putting this in the right area.
so, random stuff has slowly been dying on my motherboard, like graphics, sound, and sometimes usb. So, I bought a new motherboard and cpu. I have been using a GTX 780 GPU since the graphics were starting to conk out, and am using it on my new board. The original board had a pci 16x slot, and the new board has a pci 2.0 16x slot.
The computer started out as a HP P7-1003w, now the only HP left is the case, CD drive and the RAM (until my new sticks show up in the mail).
700W corsair Power supply
500GB WD SSD
8GB RAM (I think 1060MHZ clock)
Benchmark with the “venerable” BMW test
3.2GHZ AMD Athlon 2 x4 (quad core)
CPU render time 33 minutes 55 seconds
GTX 780 on pci 16x (HP motherboard) 5 minutes 11 seconds
The new mother board is a Gigabyte 78lmt-usb3
4.0 GHZ AMD FX-8350 (8 core 16mb cache)
CPU render time 15 minutes 7 seconds
GTX 780 on pci 2.0 16x slot
GPU render time 5 minutes 5 seconds
Swapping from a 3.2 GHZ quad core to a 4.0 GHZ 8 core dropped my render times 18.8 minutes…
Swapping from a pci 16x to a pci 2.0 16x dropped my times 6 seconds…
What does this all mean?
Raising CPU speed by 60% decreased my render time by 55.43%
Changing from pci 16x to pci 2.0 16x decreased render speed by 1.93%
One thing I don’t know is whether my cpu upgrade affected my GPU speed… The only area that I can think of where it may change things is before the actual render when its shuffling and loading materials and what… Mebe someone here is more informed about that then me and can inform.
When my new RAM busses show up I will see if they change my times and post my results.