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should I crossfire two 7770's, or buy a single r9 270

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  • Graphics
  • Crossfire
  • Radeon
Last response: in Graphics & Displays
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February 14, 2014 8:24:26 PM

I am looking to buy a budget system pre-built online. The problem is the system i'm looking at only has the option to have one AMD Radeon 7770 1gb GHz edition. Should I keep that card and put another 7770 in or go for one single R9 270. Please help!

More about : crossfire 7770 buy single 270

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February 14, 2014 8:27:16 PM

100% get the R9 270. It is much faster than even 2 7770's in crossfire, and a single card is ALWAYS better than a multi-GPU setup unless you already have 1 card you plan to use in CrossFire. Go for the 270, and later you can get another one of THOSE to crossfire.

EDIT: Plus the 7770's will only use 1GB of VRAM total. The 270 has 2GB which is much better. Crossfire does NOT add together the amounts of VRAM, if you have 2 2GB cards you can only use 2GB of VRAM.
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February 14, 2014 8:39:36 PM

crossfire may give you marginally increased compute performance but also increased overhead and issues related to crossfire. standby power is also more. 7770 generally has 128bit 1GB memory nearly 70GB/s bandwidth but r9 270 has 256bit 2GB memory with nearly 180GB/s bandwidth. moreover, you cannot later add another card on a dual physical pcie x16 board if you go for cf. You have to weigh the pros and cons yourself. But for a mid-high card r9 270, single pcie x16 slot poses no problem in my opinion.
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