PSU Advice

[PostmanPot]

I really wish I had some cap so I can check some benchmarks of a 2x 4890 setup compared to single cards at the same price-range.

Difficult to find benchmarks , but Crossfire 4890 would perform around 5 - 10% faster it seems. 5870 is quite a bit cheaper. 5870 is DX11, 4890 is DX10. 5870 would have a higher minimum FPS average, 4890 Crossfire a higher maximum FPS average (higher minimum average is better). 5870 would use much less power, create less noise and less heat. 5870 wouldn't have Crossfire scaling issues. Judging from a few international forums, people are going 5870 over 4890 Crossfire.

The reason I'd rather xfire is because I'm not sure how easy it is to sell second hand parts at a decent price.

Very easy, if you accept that PC components depreciate 40 - 50%.

You must also factor in the % lost when seling a card second hand I guess.

It would affect a single card or a dual card setup the same.

On the other hand, should the VX550 be enough to power about any single card with similar performance to xfire 4890's? I'd rather not overkill on the PSU and never use the power I have...

Yes it will.

P.S. If you have this money to fork out on a nice PC, buy a bloody 1GB internet topup.

 

[PostmanPot]

Sorry for double post, but the Corsair TX650 delivers 52A on the +12V rail which is enough to power a GTX 295 ! So I might as well just pay up and get the HX650W with 4 x 8-pin (2 x 6+2) because its R100 more and has all the connectors and power I'l EVER need in my price range.

...If you Crossfire.

 

[AnthIste]

I really didnt expect to get this dodgy service from sybaritic, I have had them recommended by more than one person I trust. In 2 emails I told them to KEEP (A) and REMOVE (B) from the order, so they kept (B) and removed (A) :/. And then all previously confirmed items have un-confirmed themselves, so the whole process starts over :/. Bleh. Was ready to pay and everything.

I think im going to get the Corsair TX650. Its handily on my order (by accident?) and good enough for any single card I'd want to get.

Thanks for the help

 

[PostmanPot]

I really didnt expect to get this dodgy service from sybaritic, I have had them recommended by more than one person I trust. In 2 emails I told them to KEEP (A) and REMOVE (B) from the order, so they kept (B) and removed (A) :/. And then all previously confirmed items have un-confirmed themselves, so the whole process starts over :/. Bleh. Was ready to pay and everything.

I think im going to get the Corsair TX650. Its handily on my order (by accident?) and good enough for any single card I'd want to get.

Thanks for the help

Overkill for any single card/GPU.

Rather get the HX620 with modular cables. Cheaper than the TX650 too. Or reconsider the Vantec if you're wanting to save a bit.

 

[chickenbeef]

+1 for the HX. Modular is nice.

 

[AnthIste]

Hmm. Maybe cheaper will be better. The TX650 should last forever, but maybe I'm just duping myself with the whole 'future' business. The Vantec sounds good. I just didn't send an email to ask them to switch PSU's, but I think I will after all. I'll make an upgrade plan when I get to upgrade, instead of having an expensive system that isn't working to its full potential. Rather squeeze that budget tight for the here and now