So I was going to build a new computer, but sandybridge went to hell, so now I am stuck waiting. I thought I might still go ahead and get the video card I was planning on: XFX HD-695X-ZNFC Radeon HD 6950 1GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP.
I was wondering if I could just plug that into my old machine until Sandybridge and/or Bulldozer is out, and then build my new comp. My old motherboard has PCI Express x16, and I need to know if a PCI Express 2.1 x16 will work in that slot.
Is a PCI Express 2.1 x16 card backward compatible with a PCI Express x16 slot?
Oh... one more thing and it's an easy one... I'm running xp 32bit and wasn't going to upgrade to 7 until I went with the new build. This won't cause any problems will it? Thanks.
The OS isn't an issue, but the PSU is. As Griffolion stated, if your current PSU isn't of sufficient quality, you should wait altogether for the new rig. Also, your current rig will benefit (assuming you have space and power) from the GPU performance increase, but won't scratch the surface of a HD6950's performance capabilities.
I don't know what kind of case I have... I bought it in 2001...
I'm pretty sure that I currently have an x1950xt AMD. I'll post more info in a couple hours when I can open my case up.
I do know I won't be scratching the surface of what the 6950 can do... It's just to hold me over while I wait for sandybridge or possibly bulldozer. I have just been in desperate need of an upgrade for quite some time, and once I finally decided to do it, Intel had problems.
Both the 6950 and 6970 are over 11" long, longer than the width of the motherboard. Most likely, they won't fit into an older case. Even newer, large mid-towers can be too small, although some are designed with longer GPUs in mind. A full tower would be best, as both fit and airflow are issues.
As far as upper end card memory, I'd go with 2gb, or at least 1.5gb in Nvidias case. Modern games are getting more GPU memory intensive, and since SLI/X-fire don't combine memory in multi GPU configs, a single card is needed.
To be honest, I wouldn't spend any money on an AGP GPU (or very little at least) because you would be able to use later in a new rig. PCI and PCI-E slots are different and are incompatible with devices made for the other type. The GPUs discussed will not work on your old mobo. Sorry.
Your original post stated that you had a PCIe x16 slot.
Anyway, make sure you get a large enough case when you do build new.
He since posted having an old AGP system and provided a link. The OP is going to build a new system in the near future and wanted to get a jump on the process by buying (and playing with) the GPU now. If accurate, this is not a feasible option.