Best Gpu card not requiring direct power

ATI/AMD Radeon HD 6670. It's leaps and bounds better than anything nvidia makes at both the price point and in terms of performance without add in PCIe 6-pin power connections.

They offer it in both GDDR3 and GDDR5 versions. If you have a fairly modern dual core or better CPU and can swing the extra dought then go for the GDDR5 version which is actually a good margin faster than the GDDR3 version.

I like this Sapphire Unit with GDDR5 for $85

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

But this GDDR3 unit at $55 after rebates is also pretty darn tempting for $30 less...

http://www.newegg.com/Product/Product.aspx?Item=N82E168...