Best r9 280x

[mrmork666]

So i want buy some more mining power and i am not sure what exact card is the best
my options and prices are
ASUS HD7970-DC2T-3GD5 TOP 3072MB GDDR5 289€
MSI R9 280X GAMING 3G AMD 3GB GDDR5 VGA 284€
CLUB3D R9 280X 3GB DDR5 RQueen 287€
ASUS R9280X-DC2-3GD5 3GB GDDR5 DVI-I DVI 293€
3072MB Sapphire Radeon R9 280X Dual-X Aktiv PCIe 3.0 x16 (Lite Retail) 278€
3072MB HIS Radeon R9 280X IceQ Boost Clock Aktiv PCIe 3.0 x16 (Retail) 265€
3072MB Sapphire Radeon R9 280X Toxic Aktiv PCIe 3.0 x16 (Full Retail) 315€

Will buy 2* cards and a 750w psu
my mobo is  asus M5A97 r2.0
my case is cm elite 334u mid (have to run in case 1 side open cos i have no spare room for a rig)
Amd phenom II x4 965 Black edition 125W
cm hyper tx3 evo
Kingston Hyper X 16gb ddr3 1600mhz
win 7

lmk your opinions

[zefo]

Go with the Sapphire Toxic.  It's about 50 KH/s faster than the MSI.

[Prelektro]

i would go for asus 280x. toxic is hard to cool and getting really hot and noisy

[mrmork666]

i would go for asus 280x. toxic is hard to cool and getting really hot and noisy

yea the heat might be issue since the case isnt that big
the cpu cooler gives some dirrect air but only to the gpu 1 thou
currently i can run my asus r9 270x 465kh/s on 64c

[claygraffix]

I have 4x ASUS R9280X-DC2-3GD5 3GB GDDR5 DVI-I DVI 

All at 750kh/s on stock settings, 69-71 deg.  Going to buy 4 more soon.

[kalus]

the best 280x is the one you can find for retail price.

good luck. 

[epicjim]

Gigabyte R9 280x Rev2 is best. It produces 730k/s while its undervolted to 1.075V at 64C . Sapphires and other makes are power hungry. No other make can come close to Gigabyte version.

[mmininginc]

I have the ASUS R9 280x DC2 and 100% happy with it.
Like claygraffix I get 750kH/s with it. (undervoltaged + increased the engine clock with 80MHz)
But what I really like about this card is its superb and silent cooling system.

[psybase64]

mmininginc - I have the ASUS R9 280x DC2 and 100% happy with it.
Like claygraffix I get 750kH/s with it. (undervoltaged + increased the engine clock with 80MHz)
But what I really like about this card is its superb and silent cooling system.

claygraffix - I have 4x ASUS R9280X-DC2-3GD5 3GB GDDR5 DVI-I DVI
All at 750kh/s on stock settings, 69-71 deg.  Going to buy 4 more soon.

Prelektro - i would go for asus 280x. toxic is hard to cool and getting really hot and noisy

I agree with these guys.

Running 6 x Asus R9 280x with two more arriving any day now.

745khs out of the box on stock. Voltage is unlocked so you Undervolt to save power and heat which lowers fan noise as well.

Don't recommend the Sapphire Radeon R9 280X Dual-X as they throttle at 72c or something silly.

Go with the ASUS, you wont regret it. I haven't

[rwessels]

Gigabyte R9 280x Rev2 is best. It produces 730k/s while its undervolted to 1.075V at 64C . Sapphires and other makes are power hungry. No other make can come close to Gigabyte version.

Did you flash the bios to unlock this card?  I have like 8 of these and have no control over the voltage in Afterburner.  Many of the newegg reviews also say the card is locked.

[cozk]

Gigabyte R9 280x Rev2 is best. It produces 730k/s while its undervolted to 1.075V at 64C . Sapphires and other makes are power hungry. No other make can come close to Gigabyte version.

Did you flash the bios to unlock this card?  I have like 8 of these and have no control over the voltage in Afterburner.  Many of the newegg reviews also say the card is locked.

You need to bios mod it.

Easy, follow crypto badge's guide. (google it)

[Gazza1]

The Toxic 280x can run 800kh/s.  voltage is locked though, have to tweak the bios with vbe7

[G K G]

I think MSI's Gaming3G is good. My buddy has 1 giving a stable 750+kh/s
I use 2 sapphire-VaporX R9 280x, each give only about 720kh/s

[Freekje]

my 4 vapor-x's run at 1.1v resulting in 720-735KH/s pulling 1060W from 2 mobo's: so including 2*mobo/cpu it's at 2.72kh/w

[Amph]

The Toxic 280x can run 800kh/s.  voltage is locked though, have to tweak the bios with vbe7

setting for 800?

i'm at 750 with 1000mv core

[goldbars]

my 4 vapor-x's run at 1.1v resulting in 720-735KH/s pulling 1060W from 2 mobo's: so including 2*mobo/cpu it's at 2.72kh/w

I get about the same for 4 asus oc r9 280x pulling about 1000w-1025w and about 10.2 amps total

[cozk]

i would go for asus 280x. toxic is hard to cool and getting really hot and noisy

lol @ people considering noise to be a factor when choosing a mining graphic card.

[epicjim]

Sapphire Radeon R9 280X Dual-X been better than my gigabyte
saphire 750khs 1.025v much cooler than Gigabyte R9 280x Rev2
gigabyte cant get voltage below 1.07, hash only 735khs

and my sapphire finds somehow 25% more shares than GIgabyte

Is your Sapphire Dual X stable on that 1.025 voltage with 750kh? I doubt it is. If you flash Gigabyte R9 280x Rev 2 it can get below voltage 1.07 but its not stable. (or i havent find right settings to make it so)

[suchnoob]

Will buy 2* cards and a 750w psu


lmk your opinions

I highly advise you to buy at least a 850W PSU. If you want your PSU to last more than 1 month.

How to choose a (<1000W) PSU for mining:
PC power consumption * 1.6 = PSU W

[G K G]

Any one using sapphire vaporX doing 730+ stable? mine does only 720-730