Problems with CF or SLI

[Pelop17]

i dont know what to buy?

a gtx 780ti

or

2 r9 280x with a free 650W psu

 

And if i buy the 2 280x what are they going to be the problems?

[DoubleY]

I would probably get the 780ti, even if the 280X's offer better performance.

[SSOB]

2 R9 280X . The ''problems'' are basically going to be frametimes. and a 650W PSU isn't going to power 2 280X's if you thought that . I would get MINIMUM 750W . 850W+ is prefered tho.

[SparkySamZa]

with CF they have fixed most of them but their is still jittering and some frame problems but apart from that no. the only other issue i see is the 650W PSU is a real push with too r9 290x cause it says in the spec for 2x of them you sshould have at least 700w :L so not much room OC wise

[Levent]

780ti for sure crossfire wont scale that well in most of the time and you will run in to more problems and worse game experience overall 

[CoolBeans]

I would go with a non reference 290 and 650w won't be enough for cf/SLI

[AndyCapets]

Get 2 R9-290 for the price of a single 780Ti if that's possible in your country, in France a 290 cost 350€ and a 780Ti costs 700€, I'll let you do the math.

[Altecice]

780ti but not for the reasons listed above...

 

The frame pacing issue is completely solved with the new R series, only the older 7000 series still has a few issues with DX9 games.

 

Also if you went for two 280x's i wouldn't want to run them on a 650w that you got "free" its probibily terrible quality, Also if you run a game that doesn't have a Crossfire profile you will be cutting your GPU power in half.

 

Always go for the more powerful card over two medium cards.

[Pelop17]

Get 2 R9-290 for the price of a single 780Ti if that's possible in your country, in France a 290 cost 350€ and a 780Ti costs 700€, I'll let you do the math.

 

 

I would go with a non reference 290 and 650w won't be enough for cf/SLI

i will be buying from UK.

also if possible can you send me where you have found those offers on the 290

If i will buy a 290 is going to be a sapphire tri-x

Now from those two

the 290 sapphire eont be as good as a 780 ti. If possible i can find or you people could send me a cheap 780ti. or someone who is selling it.?

[Pelop17]

780ti but not for the reasons listed above...

 

The frame pacing issue is completely solved with the new R series, only the older 7000 series still has a few issues with DX9 games.

 

Also if you went for two 280x's i wouldn't want to run them on a 650w that you got "free" its probibily terrible quality, Also if you run a game that doesn't have a Crossfire profile you will be cutting your GPU power in half.

 

Always go for the more powerful card over two medium cards.

so the answer is to get a single cpu.

[thedigitalmilk]

so the answer is to get a single cpu.

Yeah, one more powerful GPU is nearly always a better option than 2 weaker ones, not to mention I have calculated the wattage needed for two 280x's not OC'd with an FX8320, a H80I an SSD a HDD to be about 740 Watts so them selling you a 650 Watt one with they cards in an absolute disgrace. 

[Pelop17]

Yeah, one more powerful GPU is nearly always a better option than 2 weaker ones, not to mention I have calculated the wattage needed for two 280x's not OC'd with an FX8320, a H80I an SSD a HDD to be about 740 Watts so them selling you a 650 Watt one with they cards in an absolute disgrace. 

do you have a 780ti

?

can you tell me where to find a cheap one?

[thedigitalmilk]

do you have a 780ti

?

can you tell me where to find a cheap one?

If I did own one I would never sell it , A cheap 780Ti, not many of them:P, what currency?

[Pelop17]

If I did own one I would never sell it , A cheap 780Ti, not many of them:P, what currency?

UK or EURO

[thedigitalmilk]

UK or EURO

 

This is the cheapest one, according to PC partpicker 

http://www.dabs.com/products/gigabyte-geforce-gtx-780-ti-1020mhz-3gb-pci-express-3-0-hdmi-oc-windforce-3x-951L.html?utm_source=awin&utm_medium=affiliates&utm_content=AW00&awc=3044_1388168582_e9aecdf899fa74f591b53cbca3f1bb08

The delivery is an extra pound btw

[Pelop17]

This is the cheapest one, according to PC partpicker 

http://www.dabs.com/products/gigabyte-geforce-gtx-780-ti-1020mhz-3gb-pci-express-3-0-hdmi-oc-windforce-3x-951L.html?utm_source=awin&utm_medium=affiliates&utm_content=AW00&awc=3044_1388168582_e9aecdf899fa74f591b53cbca3f1bb08

The delivery is an extra pound btw

in usa is are they cheaper?

can you sent me one?

[Inkz]

If possible I would say a 780ti. Also Consider G-sync which makes it very attractive.

[CoolBeans]

i will be buying from UK.

also if possible can you send me where you have found those offers on the 290

If i will buy a 290 is going to be a sapphire tri-x

Now from those two

the 290 sapphire eont be as good as a 780 ti. If possible i can find or you people could send me a cheap 780ti. or someone who is selling it.?

780Ti, isn't worth the extra money IMO, because the 290 is almost as good, 5-7FPS usually

[GamerDude]

780Ti, isn't worth the extra money IMO, because the 290 is almost as good, 5-7FPS usually

And much cheaper as well. In my neck of the woods, a GTX780 Ti cost >1000 local currency, while an R9 290X can be had for around half of that, quite simple math involved actually, don't you think?

 

I'd gotten a pair of R9 290Xes and they cost about the same as a GTX Titan in local currency......buy smart, don't just look at the brand. Just look at my keyboard collection, do you see a Razer mechanical keyboard anywhere? That's because I think Razer mechanical keyboards offer terribad value (no, I didn't misspell that word) though it's the most well known due to its marketing.

[MegaTechPC]

Two 280X's will perform much stronger than a single 780Ti and 650W is not enough of a PSU for them.  Downside of course is the frame time issue which AMD has mostly fixed now.