How much Kh/s R9 280x Gets? - page 2.

oroqen

sr. member

Activity: 280

Merit: 250

Quote from: grimrog on January 01, 2014, 11:46:52 AM

between 720 and 750, depending how much im doing on the pc. They are running with a 680w bequiet 80+ bronze psu.

these are my settings:

-I 13,13 --shaders 2048,2048 -g 2 --gpu-engine 1070,1070 --auto-fan --temp-target 75

I'm using mostly the same on my Asus Top cards, with 1081v in trixx(1012v in GPUz) and 1030 for gpu-engine.

cozk

hero member

Activity: 812

Merit: 500

Quote from: oroqen on January 01, 2014, 11:42:01 AM

Quote from: cozk on January 01, 2014, 11:25:32 AM

730 kh/s

around 650 watts for 2 and a 45w cpu.

I have 2 running with a wall plug too measure, idle system draw is 38watts without any gpus installed, with both GPUs undervolted and mining I'm getting 546watts from the wall using gold rated PSU, @ 720khash/s off each card. Without undervolt 673watts from the wall.

I wasnt this far Cheesy

Chrome67

newbie

Activity: 35

Merit: 0

Thanks for the info. Definitely under consideration for my new rig.

epicjim

newbie

Activity: 24

Merit: 0

I have Gigabyte R9 280x Rev2

I undervolted them 1.075

mining 720-730 for both cards.

This is the settings I use

cgminer --scrypt -o stratum+tcp://yourpool:3333 -u yourwoker -p yourworkerpass --thread-concurrency 8921 --lookup-gap 2 --gpu-engine 1049,1049,1049,1049 --gpu-memclock 1500 --gpu-powertune -20,-20,-20,-20 --gpu-fan 75 -w 256 -I 13 -g 2

AGSTeixeira

newbie

Activity: 23

Merit: 0

im Running 740/750KH/s with a Asus 280x DC2 Top

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt -o stratum+tcp://server address here -u worker name here -p password here --shaders 2048 --thread-concurrency 11200 -I 13 -g 2 -w 256 --gpu-fan 85 --lookup-gap 2 --gpu-engine 1080 --gpu-memclock 1500

grimrog

member

Activity: 84

Merit: 10

between 720 and 750, depending how much im doing on the pc. They are running with a 680w bequiet 80+ bronze psu.

these are my settings:

-I 13,13 --shaders 2048,2048 -g 2 --gpu-engine 1070,1070 --auto-fan --temp-target 75

oroqen

sr. member

Activity: 280

Merit: 250

Quote from: cozk on January 01, 2014, 11:25:32 AM

730 kh/s

around 650 watts for 2 and a 45w cpu.

I have 2 running with a wall plug too measure, idle system draw is 38watts without any gpus installed, with both GPUs undervolted and mining I'm getting 546watts from the wall using gold rated PSU, @ 720khash/s off each card. Without undervolt 673watts from the wall.

FuriOus1

member

Activity: 84

Merit: 10

if you can get them above 700kh/s that would be very good.

cozk

hero member

Activity: 812

Merit: 500

730 kh/s

around 650 watts for 2 and a 45w cpu.

loader140

member

Activity: 112

Merit: 10

https://litecoin.info/Mining_hardware_comparison ----They give a good comparrison of them, do Ctrl-F to open the find function then type 'r9'280x' then it will go straight to the cards, it also tells you the speeds, drivers software used with the cards to get them running at that speed.

You could probs go even higher than them if you OC higher (but that would usually require watercooling if you want to go higher than these as these are already pushing the speed of the cards)

570-800 K/hash (approx)

Give that link a read though, although personally I would go for the MSI OC edition 280x

sitefive

full member

Activity: 210

Merit: 100

Finally thinking about making a rig of 2X Gigabyte r9 280x,
can anyone tell me whats the max khs you can get from these cars when Overclocked?
and what kind of wattage psu should I be getting to run 2 of these cards (obviously I want as low w model as possible so its cheaper)?

Also What kind of Power Supply do you think would 3x R9 280X need?
I see a good 750w would be good for 2X r9 280x.
but how much would 3 of these cards need?

Topic: How much Kh/s R9 280x Gets? - page 2. (Read 2140 times)