ambient temp 33C no aircon
idle ~46C
load ~77C

I bought HD5830 from ipmart before, no problems with the card and it's running fine.

300w is nothing. The most important thing is they are able to cool it down.

I Oced my 290 and it can pull over 300w also no problem running all day also.
Even OCed GTX 980 can pull alot of watts too. In gaming GTX 980 uses less power, but in CUDA apps even stock third party cards can be near 300w too


In gaming the GTX 980 only uses around 180w.


In CUDA or OPENCL, the power consumption of the third party card is 280w! Reference GTX 980 has lower wattage limit and it ran at 180 watt. Still both higher than the 165w TDP claimed by Nvidia.

Source http://www.tomshardware.com/reviews/nvidia...ll,3941-12.html


This is reference GTX 980 which has lower wattage limit. Under Nvidia's own 25% OC pushing the core to 1377Mhz, mem to 1466Mhz, max boost to 1515Mhz under the same voltage. The GTX 980 uses slightly more power than reference R9 290X. Now 25% more for 165w of the GTX 980 should be 206w, but why does a 206w card now uses more power than R9 290X which is claimed to be 250w - 300w TDP card? The card here is for the reference card, third party GTX 980 will be chugging power just like r9 290 series once you try to overclock them.
Nvidia's TDP figures is questionable while AMD's TDP figures is exaggerated.
Source http://www.anandtech.com/show/8526/nvidia-...x-980-review/22

For those people who think they can run GTX 980 and GTX 970 with small PSU, they better be careful lol, especially if they get curious and try to overclock the card. They will face problems too if they try to run CUDA apps with small PSU.

The bottom line is, 300w is nothing.

This post has been edited by terradrive: Jan 15 2015, 10:38 AM

can but very troublesome since you need to power the gpu's psu first with another added switch or pin and then only can turn on the other psu...

Quality PSU can put out the rated wattage without regard to which rail.
For example my Seasonic X-850 can put out 850 watts just on the 12V rails. 150W PSU with 78% efficiency doesn't mean it can only put out 117W power, but means they can put out 150W to computer's components but pulls 192W from the wall socket.
If I have to choose better run one PSU only. Good 450-550W PSU is cheap now.

Cheap PSU are rated differently and usually combined wattage of 3.3V, 5V and 12V. The 12 V rails is probably alot less wattage than rated.

It's better to get higher wattage PSU because PSU degrades over time. Also the components that are rated as 30W, 50W is the average power consumption, the power consumption is actually goes up and down very fast in miliseconds. The peak power usage may go over the amount and the PSU may not be able to handle it.
I faced the same problem when I was using my old Cooler Master Extreme 2 625, it can only supply ATX rated power until 480W, and after 1 year of usage my computer always crashes even when the GPU was idling. Then I switched to Seasonic and very stable now.
I put the Cooler Master PSU on AMD II X4 635 + HD5830 and it's running fine.

This post has been edited by terradrive: Jan 16 2015, 10:55 AM

Did you try third party software such as Sapphire Trixx or MSI Afterburner to adjust the fan speed?

You're referring to?

Some high performance coolers for 290/290X only uses 2 slot like the Sapphire Tri-X

Now near the end of January already, if me I'll wait for 300 series. Your HD7870 still can play latest games too.

If tak boleh wait better for for cheap GTX970... (lol i know it's Radeon subforum) or get a 2nd hand r9 290?

my R9 290 Tri-X @ 50% fan speed is quieter than my 1200rpm 120mm silverstone case fans...

How informative on your way to discredit people which doesn't agree with you.

I thought 380X is slated around June and still 28nm?

This post has been edited by terradrive: Jan 25 2015, 10:06 AM

I haven't saw any game uses more than 4GB VRAM other than Shadow of Mordor high resolution texture pack.

Also some newer games can't even use MSAA anymore, too demanding already... Have to use SMAA or FXAA now

SMAA is different.

For me SMAA is the best AA for now. Performance impact is just few percent like FXAA, but it looks really good.
I have to say I prefer it over MSAA 4x, MSAA looked sharp. MSAA's performance impact may reach 15-30%

Far Cry 4 with SMAA looked awesome.

Even if future games may require big VRAMs. 4GB VRAM is sufficient simply by lowering the texture settings

CM V1000 also good and cheap. Can run 290X CrossFire too

GPU usage and VRAM usage doesn't really correlate with each other

There are so many 4GB cards on the market, I would think that's the target for game developers for years to come.

The ceiling for game developer's VRAM requirement when designing a game now would be 2GB, 3GB and 4GB. On rare cases 6GB or 8GB.

When the competitor shot themselves in the foot, AMD doesn't just stay silent but help them shoot too

AMD Robert Hallock

https://twitter.com/thracks

I saw the link from a comment someone posted at PCPER