I wish my card was that easy to mod.Are 5870s easy to get cheaply and to mod (as in clock settings) like you've done? a 5870 beating my HD6950?interesting. I guess I was wrong on the 5870's abilities.It is true that you learn something new everyday.
Mike, you are not joking about the prices you can expect to find them at.I found an in stock card at this site:http://www.scan.co.uk/products/1gb-msi-hd-5870-lightning-pci-e-21-%28x16%29-4800mhz-gddr5-gpu-900mhz-1600-cores-2x-dvi-dp-hdmi?utm_source=google+shopping&utm_medium=google+shopping
As you may notice that's very pricy as I'm in UK (in UK most places are out of stock right now).I can't ship from the US as I have to pay 'import tax' in addition to shipping to reach me in UK whenever I buy things from anysite based in US.I find that annoying.Wel I suppose I can try eBay and see if that has anything.I'm having trouble finding a HD6990 as that's also sold out in UK.The cheapest refurbed one is like £539 (used),looks like they can certainly hold onto their value.I suspect the seller was mining bitcoins before deciding to sell it