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Question about a Crossfire upgrade

post #1 of 4
Thread Starter 
I built my machine for 1080p last summer. The single 2GB Sapphire Radeon 7850 OC has performed admirably for me, and I must say I've been very pleased with it. That being said, I recently bought a new 27" 1440p monitor, and while overall I'm satisfied with my machine's performance at the larger resolution, my FPS has dropped noticeably in graphic-intensive situations.

I have about $200 left in my budget that I've decided I'll use to upgrade my GPU. From what I'm seeing, it looks like the best "bang for my buck" will come from picking up a second 7850 and Crossfiring it with my current one. Newegg has this MSI 7850 for about $140 after the discount and rebate, so I'm thinking I'll pull the trigger on it. Before I do, though, I have a question about my internal setup.

My motherboard is an AsRock Z77 Extreme4..

Right now My Sapphire 7850 is plugged into PCIE2.

Moving down, I have a PCIe soundcard connected in PCIE3 (which I will move to either 1 or 4 to accommodate the new card), followed by a wifi adapter in PCI2.

Since the cooler on the second GPU would cover PCI2, PCI1 is the only place to put it. However, that would have it sitting pretty much flush against the intake fan for the top GPU.


Here's a picture of the inside of my rig as it stands now
.

Would it be a problem to have my wireless adapter right up next to the top GPU? Or should I look for a smaller PCIe adapter to plug into 1 or 4 while I'm shopping?
post #2 of 4
for 1440p I suggest you sell the HD 7850 . HD 7850 should go for USD 100. throw in another USD 150 - 170 and grab a HD 7950. for 1440p the extra RAM is useful and the single HD 7950 GPU would provide you 50% faster performance at average overclocks of 1150 mhz over a HD 7850 OC(1150 mhz). HD 7950(1125 Mhz) = HD 7970(1050 Mhz) . with a HD 7950 OC(1100+ Mhz) at 1440p you can play most games at max settings without MSAA.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814161429
http://www.newegg.com/Product/Product.aspx?Item=N82E16814202007
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125414
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post #3 of 4
I would agree with raghu78, I'd sell your 7850 and get a 7950 or gtx 760. Then later on if you need more gpu horsepower you can CF/SLI it later down the road. 7850CF is pretty nice, but you'll be very limited in upgrade options down the road.

Or if you want you can wait out until the 9950/9970 come out, save a bit more money and get one of them instead.
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CPUMotherboardGraphicsRAM
Intel Core i7-4790k @ 4.6GHz GA-Z97X-Gaming 5 MSI GTX 1070 GAMING X  G.Skill Ripjaws 2x8GB DDR3 1600MHz 
Hard DriveHard DriveOSMonitor
Curcial BX100 500GB SSD WD blue 1TB Windows 10 64bit Dell Ultrasharp U2715H 
KeyboardPowerCaseMouse
Corsair Vengeance k70 EVGA SuperNOVA 750W G2 Silverstone TJ08B-E gigabyte G502 
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post #4 of 4
The wireless card will restrict some airflow and the fan on the graphics card will run a little warmer and louder. To free up some space, I'd spend the ~$15 needed to get a decent usb wireless unit. That would eliminate the airflow restriction caused by a pci wireless card next to the graphics card. If I were in your position, I would just get the second 7850. As long as you aren't cranking up the antialiasing, 2gb will be fine for 1440p in most cases. Later on, if you need more horsepower, wait until the price drops on the 9000 series cards and get one of those.
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