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7970 Crossfire with 280x

TB-303
By TB-303
in Graphics Cards
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Posted

Hi after watching Tek Syndicate's video on crossfire 7970oc with the 280x...

 

Im thinking of going for it. I would like a few opinions on this concerning power draw/bottlenecking/heat or any other problems I might encounter or anyone elses experience with a similar setup, thanks in advance and specs below.

 

 

Monitor: Asus PB278 (2560x1440)

CPU: 8350 4.0ghz

Power: Corsair AX860i

GPU: Sapphire 7970oc

Case: Fractal R4

Sound: Asus D2x

Cooling: Xigmatek Dark Knight, Corsair SP120 Quiet + AF140 Quiet 

Board: Gigabyte 990fxa UD3

Memory: Corsair Dominator Platinum 16gb @1866mhz

Storage: Samsung 840 500gb + Seagate Barracuda 3gb

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It would look ugly. That is about it.

Main Rig: -FX8150 -32gb Kingston HyperX BLUE -120gb Kingston HyperX SSD -1TB WD Black -ASUS R9 270 DCUII OC -Corsair 300r -Full specs on Profile


Other Devices: -One Plus One 64gb Sandstone Black -Canon T5 -Moto G -Pebble Smartwatch -Nintendo 2DS -G27 Racing Wheel


#PlugYourStuff - 720penis - 1080penis - #KilledMyWife - #LinusButtPlug - #HashtagsAreALifestyle - CAR BOUGHT: 2010 Corolla

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It would look ugly. That is about it.

Not if you can get the same card in the 280x version. Two sapphire, same cooler cards just different names.

CPU: 5820k 4.5Ghz 1.28v, RAM: 16GB Crucial 2400mhz, Motherboard: Evga X99 Micro, Graphics Card: GTX 780, Water Cooling: EK Acetal CPU/GPU blocks,


240mm Magicool slim rad, 280mm Alphacool rad, D5 Vario pump, 1/4 ID 3/4 OD tubing, Noctua Redux 140/120mm fans. PSU: Evga 750w G2 SSD: Samsung 850 Pro 256GB & Seagate SSHD 2TB Audio: Sennheiser HD558s, JBL! speakers, Fiio E10k DAC/Amp Monitor: Xstar DP2710LED @ 96hz (Korean Monitor) Case: Fractal Node 804

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Not if you can get the same card in the 280x version. Two sapphire, same cooler cards just different names.

Personally I would just sell my old card and buy new ones with the stock cooler because it looks sexy IMO

Main Rig: -FX8150 -32gb Kingston HyperX BLUE -120gb Kingston HyperX SSD -1TB WD Black -ASUS R9 270 DCUII OC -Corsair 300r -Full specs on Profile


Other Devices: -One Plus One 64gb Sandstone Black -Canon T5 -Moto G -Pebble Smartwatch -Nintendo 2DS -G27 Racing Wheel


#PlugYourStuff - 720penis - 1080penis - #KilledMyWife - #LinusButtPlug - #HashtagsAreALifestyle - CAR BOUGHT: 2010 Corolla

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Posted

Hi after watching Tek Syndicate's video on crossfire 7970oc with the 280x...

 

Im thinking of going for it. I would like a few opinions on this concerning power draw/bottlenecking/heat or any other problems I might encounter or anyone elses experience with a similar setup, thanks in advance and specs below.

 

 

Monitor: Asus PB278 (2560x1440)

CPU: 8350 4.0ghz

Power: Corsair AX860i

GPU: Sapphire 7970oc

Case: Fractal R4

Sound: Asus D2x

Cooling: Xigmatek Dark Knight, Corsair SP120 Quiet + AF140 Quiet 

Board: Gigabyte 990fxa UD3

Memory: Corsair Dominator Platinum 16gb @1866mhz

Storage: Samsung 840 500gb + Seagate Barracuda 3gb

 

FX 83xx can't handle 2x 7970 well... Bottleneck.

][ CPU: Phenom II x6 1045t @3,7GHz ][ GPU: GTX 660 2GB ][ Motherboard: Gigabyte GA-MA770T-UD3P ][ RAM: 8GB @1450Mhz CL9 DDR3 ][ PSU: Chieftec 500AB A ][ Case: SilentiumPC Regnum L50 ][ CPU Cooler: CoolerMaster Hyper 212 Evo & Arctic MX4 ][

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Personally I would just sell my old card and buy new ones with the stock cooler because it looks sexy IMO

Not a bad plan.

CPU: 5820k 4.5Ghz 1.28v, RAM: 16GB Crucial 2400mhz, Motherboard: Evga X99 Micro, Graphics Card: GTX 780, Water Cooling: EK Acetal CPU/GPU blocks,


240mm Magicool slim rad, 280mm Alphacool rad, D5 Vario pump, 1/4 ID 3/4 OD tubing, Noctua Redux 140/120mm fans. PSU: Evga 750w G2 SSD: Samsung 850 Pro 256GB & Seagate SSHD 2TB Audio: Sennheiser HD558s, JBL! speakers, Fiio E10k DAC/Amp Monitor: Xstar DP2710LED @ 96hz (Korean Monitor) Case: Fractal Node 804

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Posted

It will look sexy lets not worry about that..

image.jpg

Could you give any further information on how this bottleneck might affect performance?

http://www.tomshardware.com/reviews/fx-8350-core-i7-3770k-gaming-bottleneck,3407-3.html

CPU: 5820k 4.5Ghz 1.28v, RAM: 16GB Crucial 2400mhz, Motherboard: Evga X99 Micro, Graphics Card: GTX 780, Water Cooling: EK Acetal CPU/GPU blocks,


240mm Magicool slim rad, 280mm Alphacool rad, D5 Vario pump, 1/4 ID 3/4 OD tubing, Noctua Redux 140/120mm fans. PSU: Evga 750w G2 SSD: Samsung 850 Pro 256GB & Seagate SSHD 2TB Audio: Sennheiser HD558s, JBL! speakers, Fiio E10k DAC/Amp Monitor: Xstar DP2710LED @ 96hz (Korean Monitor) Case: Fractal Node 804

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Posted

It will look sexy lets not worry about that..

image.jpg

Could you give any further information on how this bottleneck might affect performance?

 

Radeon use single thread drivers, GeForce uses multi-threaded drivers.

 

i'm not sure how exactly crossfire drivers work but i hope it uses 2 (not 1...) threads to feed them...

 

Anyway for any SLi or crossfire config there are recommended i5, or i7 for the fast single threads that can feed both GPUs and make them work at 100% load at all times and even Intel CPUs are recommended to be HEAVILY overclocked when running multiGPU.

 

i'd get a good intel platform for multiGPU or else you may run into cpu bottleneck in various games resulting in both GPUs performing at less than 100% performance. sometimes it means 100% CPU usage and 30-50% GPU usage... fast single thread overclocked reduces any bottlenecks but those still occur with 2x or more heavy duty GPUs being fed. That ONLY happens in CPu-heavy games (or moments of games that require CPu power to be rendered, or during fights when AI is being calculated). Not at all times.

][ CPU: Phenom II x6 1045t @3,7GHz ][ GPU: GTX 660 2GB ][ Motherboard: Gigabyte GA-MA770T-UD3P ][ RAM: 8GB @1450Mhz CL9 DDR3 ][ PSU: Chieftec 500AB A ][ Case: SilentiumPC Regnum L50 ][ CPU Cooler: CoolerMaster Hyper 212 Evo & Arctic MX4 ][

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