Crossfire GPU Question

patrick47018 · Sep 29, 2013

I will be looking to crossfire when my rig can no longer handle games, I currently have a HIS Radeon 7950 IceQx2, but that card is discontinued, so I was wondering if I would be able to crossfire with any other 7950, such as this one: http://www.newegg.com/Product/Product.aspx?Item=N82E16814161420

Also are there any realy problems with crossfire, and what will the performance of dual 7950's be like. Also how does overclocking work with crossfire. Thanks in advance for any help.

slomo4sho · Sep 29, 2013

You can crossfire with any model 7950 or even a 7970. The only issues would be whether your motherboard supports crossfire and if your PSU can handle the load.

patrick47018 · Sep 29, 2013

Says my motherboard can,: http://www.gigabyte.us/products/product-page.aspx?pid=4139#ov

However my PSU is a different story, I have a PC Power and Cooling 600W Silencer MKIII

slomo4sho · Sep 29, 2013

Depending on the age of your PSU, you may or may not be able to run two cards on that PSU. You can potentially undervolt the 7950s until you pickup a new PSU.

patrick47018 · Sep 29, 2013

My PSU is about 6 months old

slomo4sho · Sep 29, 2013

patrick47018 :

You should be fine, just wont have much overclock headroom.

You should be around 450-500 on peak load if you have your CPU overclocked (up to 550ish if it is an AMD build).

patrick47018 · Sep 29, 2013

Alright, do you have a recommendation for a higher wattage PSU?

What is your opinion of these?
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703028

http://www.newegg.com/Product/Product.aspx?Item=N82E16817341044

http://www.newegg.com/Product/Product.aspx?Item=N82E16817438010

http://www.newegg.com/Product/Product.aspx?Item=N82E16817580012

slomo4sho · Sep 29, 2013

You are overshooting on the wattage

XFX ProSeries 750W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($89.99 @ NCIX US)
Corsair Professional 750W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($89.99 @ Newegg)

If you want to go higher

XFX ProSeries 850W 80 PLUS Gold Certified ATX12V / EPS12V Power Supply ($109.99 @ NCIX US)

patrick47018 · Sep 29, 2013

No harm in having more than I need

slomo4sho · Sep 29, 2013

patrick47018 :

No benefit either, you are better off getting a higher quality gold or platinum rated psu.

patrick47018 · Sep 29, 2013

I have an i5-3570K non-OC'd btw

slomo4sho · Sep 29, 2013

You should be fine with the 600W model that you have with light overclocking.

patrick47018 · Sep 29, 2013

is the HIS IceQ 7950 with the blower style fan a good option on account of me crossfiring? It blows most of its air out of the case

slomo4sho · Sep 29, 2013

patrick47018 :

You would be better served going with the following:

PowerColor PCS+ AX7950

patrick47018 · Sep 29, 2013

Alright and also my current OC is 1150 Core Clock and 1500 Memory Clock. Is that good and that won't be an issue as far as necessary power will it?

slomo4sho · Sep 29, 2013

patrick47018 :

What voltage are you running?

patrick47018 · Sep 29, 2013

stock

Crossfire GPU Question

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