Dx11 gpu

[OneSerious]

Hi all,

I'm considering a new Asus ATI Radeon 5870 1024MB GDDR5

I'm just want to know if my 450W PSU will be big enough to handle it. My current specs are listed below. I don't really want to buy a new PSU but if it needs it I best take the plunge.

Cheers.

 

[nate42nd]

I wouldn't be surprised if your 4850 eats more power than the 5870. I don't think you NEED a new PSU. The Corsiar 450 is fine. Good luck on the upgrade. I almost got a 5000 series card too. Ended up with a GTS250 of all things. It does me fine.

 

[TheSchaft]

Hi all,

I'm considering a new Asus ATI Radeon 5870 1024MB GDDR5

I'm just want to know if my 450W PSU will be big enough to handle it. My current specs are listed below. I don't really want to buy a new PSU but if it needs it I best take the plunge.

Cheers.

This link came up in another thread a little while ago, it may help you decide: eXtreme Power Supply Calculator

 

[OneSerious]

I wouldn't be surprised if your 4850 eats more power than the 5870. I don't think you NEED a new PSU. The Corsiar 450 is fine. Good luck on the upgrade. I almost got a 5000 series card too. Ended up with a GTS250 of all things. It does me fine.

The 4850 I have currently runs pretty sweet but I'm hoping with the 5870 that the system will eat the likes of Crysis and Metro 2033 right up.

This link came up in another thread a little while ago, it may help you decide: eXtreme Power Supply Calculator

I'll take a look at this, cheers!

 

[Phrosen]

I'm using the ASUS ATI Radeon 5870 on a Corsair 620W PSU with no problem.
I'm not sure if 450W is enough or not.

Remember that ASUS 5870 requires 2x 6-pin power cables.
-The Corsair 450W "only" has one 6-pin and one 8-pin, if I remember correctly.

 

[bobkn]

Looks like the Corsair PSU has two 6+2 pin PCI-E connectors, so that's all right for the 5870.

Sapphire recommends a minimum of 500W for the PSU for a single 5870, but not all PSUs are created equal. The Corsair HX450 is rated at 33A on its single +12V rail. Some cheap 600W supplies are rated lower than that.

I don't know what the actual power draws are for the 4850 and the 5870, but according to the calculation link above, the 5870 draws less than 10W more than a 4850.

I'd say that if the 4850 is OK, the 5870 should be too. Whether upgrading will improve your life, I can't say.

 

[OneSerious]

Looks like the Corsair PSU has two 6+2 pin PCI-E connectors, so that's all right for the 5870.

Sapphire recommends a minimum of 500W for the PSU for a single 5870, but not all PSUs are created equal. The Corsair HX450 is rated at 33A on its single +12V rail. Some cheap 600W supplies are rated lower than that.

I don't know what the actual power draws are for the 4850 and the 5870, but according to the calculation link above, the 5870 draws less than 10W more than a 4850.

I'd say that if the 4850 is OK, the 5870 should be too. Whether upgrading will improve your life, I can't say.

Yeah, the PSU does have two 6+2 outs. I'm going to assume all is well. I suppose a decent PSU isn't that expensive an upgrade if the system needs it. All being well the 450w will hold up.

Cheers for the info guys.