7770 crossfire with 7750, performance?

[Mateous]

So I want to crossfire my current 7770 with a 7750 to save lots of money (building a new pc). No need to tell me that I'll be better off with a single mid-end gpu, i've done my lecture. People say that 7770 with 7750 in crossfire would perform just like 7750 crossfire, but I can not find any good benchmarks on the internet, at least not with new games like Battlefield 3/4. I know that 7770 crossfire is equal to a single HD7950 (Which runs crysis 3 at Very High). How would the 7750+7770 crossfire compete? I'll save heckloads of $$, and I'll still stay under 450watt.
I'm gaming at 1600x900 with my current 7770.
My current specs are:

FX6300 3.5ghz (i'll overclock after i buy the 212 EVO)
6GB RAM (might upgrade)
XFX HD7770 1gb

 

[Agent69]

You cant crossfire those together. Sell your 7750 and buy a 7770. Unfortunately you'll only get like 30-50$ out of that sell so youre going to have to make some money on your own. Also i would rather get a 650TI or 650TI boost or a 7790. The 7790 is the best one for about 10-20$ more than the 7770. Again you cant crossfire 2 different cards.

 

[Sakkura]

You cant crossfire those together

Yes you can. At least according to AMD.

 

[Agent69]

You cant crossfire those together

Yes you can. At least according to AMD.

By "Multi-GPU" it means more than 1 of the same GPU. Its not really possible to crossfire 2 different GPU's for a couple reasons. The old versions work differently so if youre trying to crossfire an old and a new one, it will mess something up. And crossfire is pretty unstable so i doubt having 2 different versions of AMD GPUS will keep make it better, probably will make it worse.

 

[Sakkura]

By "Multi-GPU" it means more than 1 of the same GPU. Its not really possible to crossfire 2 different GPU's for a couple reasons. The old versions work differently so if youre trying to crossfire an old and a new one, it will mess something up.

 

[Sakkura]

And, by the way, the 7770 and the 7750 both use the same GPU: Cape Verde.

 

[ingtar33]

So I want to crossfire my current 7770 with a 7750 to save lots of money (building a new pc). No need to tell me that I'll be better off with a single mid-end gpu, i've done my lecture. People say that 7770 with 7750 in crossfire would perform just like 7750 crossfire, but I can not find any good benchmarks on the internet, at least not with new games like Battlefield 3/4. I know that 7770 crossfire is equal to a single HD7950 (Which runs crysis 3 at Very High). How would the 7750+7770 crossfire compete? I'll save heckloads of $$, and I'll still stay under 450watt.
I'm gaming at 1600x900 with my current 7770.
My current specs are:

FX6300 3.5ghz (i'll overclock after i buy the 212 EVO)
6GB RAM (might upgrade)
XFX HD7770 1gb

a 7770 + 7750 will scale about halfway between 2 7750s and 2 7770s... xfire is pretty funny like that... and they'll perform about on par with a 7870/270x. xfire is working pretty good right now in dx11 games, it works great in bf4. it does not work in dx9 titles or with multiple monitors (yet), those fixes are coming shortly.

You cant crossfire those together. Sell your 7750 and buy a 7770. Unfortunately you'll only get like 30-50$ out of that sell so youre going to have to make some money on your own. Also i would rather get a 650TI or 650TI boost or a 7790. The 7790 is the best one for about 10-20$ more than the 7770. Again you cant crossfire 2 different cards.

wrong. AMD is not nvidia. the whole 77xx lineup will xfire just fine with eachother. though you might have issues xfiring a 7790 with a 7730. It comes down to what the drivers will let you do. just like a 7950 and a 7970 will xfire and supposedly a 290x and 290 will xfire with each other as well.

 

[Mateous]

You cant crossfire those together. Sell your 7750 and buy a 7770. Unfortunately you'll only get like 30-50$ out of that sell so youre going to have to make some money on your own. Also i would rather get a 650TI or 650TI boost or a 7790. The 7790 is the best one for about 10-20$ more than the 7770. Again you cant crossfire 2 different cards.

You cant crossfire those together

Yes you can. At least according to AMD.

So I want to crossfire my current 7770 with a 7750 to save lots of money (building a new pc). No need to tell me that I'll be better off with a single mid-end gpu, i've done my lecture. People say that 7770 with 7750 in crossfire would perform just like 7750 crossfire, but I can not find any good benchmarks on the internet, at least not with new games like Battlefield 3/4. I know that 7770 crossfire is equal to a single HD7950 (Which runs crysis 3 at Very High). How would the 7750+7770 crossfire compete? I'll save heckloads of $$, and I'll still stay under 450watt.
I'm gaming at 1600x900 with my current 7770.
My current specs are:

FX6300 3.5ghz (i'll overclock after i buy the 212 EVO)
6GB RAM (might upgrade)
XFX HD7770 1gb

a 7770 + 7750 will scale about halfway between 2 7750s and 2 7770s... xfire is pretty funny like that... and they'll perform about on par with a 7870/270x. xfire is working pretty good right now in dx11 games, it works great in bf4. it does not work in dx9 titles or with multiple monitors (yet), those fixes are coming shortly.

You cant crossfire those together. Sell your 7750 and buy a 7770. Unfortunately you'll only get like 30-50$ out of that sell so youre going to have to make some money on your own. Also i would rather get a 650TI or 650TI boost or a 7790. The 7790 is the best one for about 10-20$ more than the 7770. Again you cant crossfire 2 different cards.

wrong. AMD is not nvidia. the whole 77xx lineup will xfire just fine with eachother. though you might have issues xfiring a 7790 with a 7730. It comes down to what the drivers will let you do. just like a 7950 and a 7970 will xfire and supposedly a 290x and 290 will xfire with each other as well.

Thank you! That's what I was looking for. Facts and not opinions. I know that since the Catalyst 13.8 drivers, lot's of issues have been fixed, mostly crossfireX and frame pacing.

 

[Agent69]

http://www.tomshardware.com/forum/332435-33-crossfire-cards all of these guys disagree. but then again, this is a pretty old post. AMD might have changed it recently...

 

[Sakkura]

http://www.tomshardware.com/forum/332435-33-crossfire-cards all of these guys disagree. but then again, this is a pretty old post. AMD might have changed it recently...

They're just wrong. And it's nothing new, it's been this way since the HD 2000 series.

 

[Mateous]

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