jerry said:
I am going to build a new pc for my wife and I have some questions
about some of the newer technology.
I am planning on using thses parts (at least for the present)
MB: MSI p35 neo2-fr
cpu: intel core2 quad q6600
memory patriot 4 gb ddr2/800
Video card: HIS radeon hd 2600xt isilence
or
asus radeon hd 3870
This rig is not for gaming but photos, videos, dvds, and the usual
stuff.
From what i can make out from the literature the mb has pci express
16x 1.0, not 2.0. Does that control what kind of video card I install?
Will a 1.0 or 2.0 PCIe video card work equally well?
Thanks for any info.
Jerry
The difference between PCI Express 1.0 and PCI Express 2.0, in
a non-gaming scenario, would be invisible. Even in a gaming
case, I haven't seen any articles comparing the performance.
We're talking about the difference between 4GB/sec and 8GB/sec
bidirectional. And it is unclear to me, whether in all
cases, the memory subsystem, could actually handle 8GB/sec
from the PCI Express slot, without some throttling
of the peak PCI Express performance.
The two standards are supposed to be backward compatible.
So a PCI Express 2 component, has to be able to operate
at PCI Express 1 rates. (In the same way you can mix SATA 300
and SATA 150 stuff, with about the same number of exceptions.)
There was a tiny initial problem, with a PCI Express 2 card
like the 8800GT, which was fixed by using a video card BIOS
flash load that forced the GPU to operate its interface at
PCI Express 1 rates. That should be fixed for other cards
now on the market.
For "photos, videos, dvds, and the usual stuff", perhaps a
video card with a video processor feature would be something
to look for. Some of the highest end gaming cards, have that
disabled, and when a video is played back, it uses a brute
force (CPU based) method. Since you're going with a
quad processor, perhaps that is a non issue. What I'd be
searching for, is a video card that does the job, but doesn't
suck a lot of power while doing it. You have enough horsepower
in the box, that the decision isn't quite as critical as someone
building an HTPC with a wimpy CPU choice.
http://en.wikipedia.org/wiki/Unified_Video_Decoder
http://en.wikipedia.org/wiki/NVIDIA_PureVideo
http://www.anandtech.com/video/showdoc.aspx?i=3047&p=6&cp=5
The lower CPU utilization shown in that article and similar
ones, relies on media playback software that supports the
hardware. The drivers provided with the card, don't arbitrarily
speed up all video playback. The playback program has to
know about the hardware feature, to gain an advantage. The
review articles will rely on a couple major software products,
for evaluation of the video card based acceleration of video
playback. So that might represent an extra cost.
Other than that, going up the gaming card curve would probably
not buy you anything. If you were running Vista Aero, then
perhaps a bit of 3D performance wouldn't hurt, but buying a
GTX280 for your wife would be rather pointless.
For power consumption numbers, you can get them from Xbitlabs.com .
http://www.xbitlabs.com/articles/video/display/radeon-hd2600xt-gddr4_5.html
http://www.xbitlabs.com/articles/video/display/gigabyte-radeonhd3870-3850_5.html
Paul