I was looking at a GPU that would be in the 200 range [ or a little over ] would this be a good choice I can't find double precision info . any help ? thanks
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127722&nm_mc=EMC-EXPRESS101213&cm_mmc=EMC-EXPRESS101213-_-EMC-101213-Index-_-DesktopGraphicsVideoCards-_-14127722-L06C

You can start here:
http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units

I was looking at a GPU that would be in the 200 range [ or a little over ] would this be a good choice I can't find double precision info . any help ? thanks
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127722&nm_mc=EMC-EXPRESS101213&cm_mmc=EMC-EXPRESS101213-_-EMC-101213-Index-_-DesktopGraphicsVideoCards-_-14127722-L06C

This one has a better double precision ratio.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814150671

1/4 vs 1/8

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Let me see if this works:
card type-MW capable shaders
Nvidia 8600 GT 128
Nvidia 9800 GT/512meg 112
Nvidia 9600 GSO/ 512meg 64
Nvidia GTX 560Ti-yes 384
Nvidia 650Ti-yes 768
Nvidia 660-yes 1344
Nvidia 670- yes 1344
Nvidia 680-yes 1536
Nvidia 690-yes 3072
Nvidia 770 1536
ATI 4650 AGP-no 320
ATI 4670-no 320
ATI 5550-no 320
AMD 5770-no 800
AMD 5870-yes 1600
AMD 6770-no 800
AMD 6850-no 960
AMD 6870-no 1120
AMD 6950-yes 1408
AMD 6970-yes 1536
AMD 7750-yes 512
AMD 7770-yes 640
AMD 7790-yes 896
AMD 7850-yes 1024
AMD 7870-yes 1280
AMD 7950-yes 1792
AMD 7970-yes 2048
AMD 7990-yes 4096

Shaders are what is important to AMD type cards, Nvidia is similar but you can NOT compare them head to head that way. The yes means that yes it WILL work here at MilkyWay. If there is no yes or no it means I don't know if it works here or not. I THINK the chart is accurate but ALWAYS double check to make sure!! The other day at TigerDirect they had an AMD 7970 on sale for 230 bucks, yesterday I saw a similar 7970 on sale at Newegg for 250 bucks. And YES the 7970's will work here with the latest software.

As for the Nvidia's there is a breakover point where the newest ones aren't better then the older ones, as the newer ones don't do full speed double processing or something like that. You can click on my name and see my pc's and see how fast each of my gpu's was working when they were last here. I tend to come and go here depending on the workunit flow elsewhere. Right now my cpu's are here but not my gpu's.

Let me see if this works:
card type-MW capable shaders
Nvidia 8600 GT 128
Nvidia 9800 GT/512meg 112
Nvidia 9600 GSO/ 512meg 64

None of these have DP support.

You need at least a GTX260 and above to have it.

All of the 4XX, 5XX, 6XX and 7XX series have DP.

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Let me see if this works:
card type-MW capable shaders
Nvidia 8600 GT 128
Nvidia 9800 GT/512meg 112
Nvidia 9600 GSO/ 512meg 64

None of these have DP support.

You need at least a GTX260 and above to have it.

All of the 4XX, 5XX, 6XX and 7XX series have DP.

Thanks my list is fixed!

You'll notice that Radeon HD 7000 series is going out of stock quickly. They are being replaced by the new R7/R9 series which are pre-overclocked and slightly improved Radeon HD 7000s. I would buy them as fast as you can as the R9 270X (1280 cores) which costs the same as a HD 7950 (1792 cores) is actually a HD 7870 (1280 cores) clocked to ~1100Mhz (or in my case 1200Mhz in Linux). You can easily clock a HD 7950 to 1100Mhz for this and other projects with minimal voltage increase.

AMD GPUs have the best DP performance, especially if you opt into the later tiers (aka HD 7900s) which don't cut DP performance.

thanks folks got a new one ordered and will arrive today xfx http://www.newegg.com/Product/Product.aspx?Item=N82E16814150605&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-

thanks folks got a new one ordered and will arrive today xfx http://www.newegg.com/Product/Product.aspx?Item=N82E16814150605&nm_mc=TEMC-RMA-Approvel&cm_mmc=TEMC-RMA-Approvel-_-Content-_-text-_-

My wife ordered two of these for me, for Christmas, yesterday and they should be here Tuesday: http://www.newegg.com/Product/Product.aspx?Item=N82E16814131468&nm_mc=AFC-dealnews&cm_mmc=AFC-dealnews-_-NA-_-NA-_-N82E16814131468 She said I can't actually use them until Christmas though!!