Why does a 9800GT outperform a gtx 760 on my system?

Roadkill_321

Reputable
Mar 6, 2014
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4,510
OK, I had a Zotac 9800GT and it died, so, I thought I'd upgrade to a MSI Twin Frozr 2GB GTX 760. I paid $250.00 originally for the 9800 and 350.00 for the gtx 760 and now in FSX it is very much like a slideshow. Would like to know why.

My system is an i5-750,P55-Pro MB, 4GB Ram.
Thanks
John