Topic Title: Radeon R290, 500 Watt PSU enough?
Topic Summary: Will my PSU work for Radeon R290?
Created On: 12/15/2013 01:18 AM
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 12/15/2013 01:18 AM
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postnord
Peon

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This is my setup:

Intel i5 Haswell 3,4 Ghz processor

8 gigabyte of RAM, 1333 Mhz

2 TB HDD, 7200 RPM

MSI Z87-G45 Motherboard

And, of course, I'm planning to get a Radeon 290(with aftermarket cooler).

 

My PSU is a Bronze-certified, 80 plus Cooler Master G500.

I'm asking the question after viewing this thread:

http://forums.amd.com/game/messageview.cfm?catid=440&threadid=168786&enterthread=y

 

The card in question in that thread was 290X and it was about crossfire, but some replies stated that the 290 will draw around 250 W, so my question is, can it be doable? There is a tradeoff between optimal efficiency, but I want to know if it is/would be relatively safe.

 

Thanks!

 12/15/2013 02:06 AM
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WMudrockJr
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A 750w PSU bottom safer with a 850w, but I'm partial to XFX cards.



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AMD A10-5800K, XFX 7850 Ultra OC Edition 975MHz, 16GB RAM, Win 8.1 Pro 64 bit, MSI 7778 motherboard, 500W PSU, HP P7-1235, CCC 13.12 WHQL

 12/15/2013 02:07 AM
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sicos
Peon

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i'm using a 650 w PSU ..and works fine ...amd recomand minimum 600w

 

careful what u chose becouse the GPU eat loots of power

 12/15/2013 10:48 AM
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skabeis
Peon

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Originally posted by: postnord This is my setup:

 

Intel i5 Haswell 3,4 Ghz processor

 

8 gigabyte of RAM, 1333 Mhz

 

2 TB HDD, 7200 RPM

 

MSI Z87-G45 Motherboard

 

And, of course, I'm planning to get a Radeon 290(with aftermarket cooler).

 

 

 

My PSU is a Bronze-certified, 80 plus Cooler Master G500.

 

I'm asking the question after viewing this thread:

 

http://forums.amd.com/game/messageview.cfm?catid=440&threadid=168786&enterthread=y

 

 

 

The card in question in that thread was 290X and it was about crossfire, but some replies stated that the 290 will draw around 250 W, so my question is, can it be doable? There is a tradeoff between optimal efficiency, but I want to know if it is/would be relatively safe.

 

 

 

Thanks!

 

 

I use a similar system with a 550 watt be quiet dark power pro and everything works fine.... cpu @ 4,2 Ghz anf r9 290 @ 1100 Mhz are also no problems for the psu.

 12/15/2013 11:34 AM
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black_zion
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It should work, but you would be approaching the limits of that power supply. You should go ahead and get a quality 750w power supply.

-------------------------
ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 12/15/2013 06:33 PM
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postnord
Peon

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Thank you all for answers!

One of the things that puzzled me was the discrepancy, sometimes almost 80% between various websites.

Consider, for example:

http://www.tomshardware.com/reviews/radeon-r9-290-review-benchmark,3659-17.html

and

http://www.anandtech.com/show/7481/the-amd-radeon-r9-290-review/15

The only thing that I can make sense of is that Tom's Hardware looked at the power consumption of only the GPU - which gave them 200~ish Watt for Metro Last light benchmark on max settings - while Anandtech looked at the powerconsumption of all parts, hence their "total system power consumption in watts" explanation.

However, if Anandtech indeed looked at the entire rig, then it is well below 400 watt, so I should be safe? Or am I missing something?

 12/15/2013 07:47 PM
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black_zion
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You should always overestimate when it comes to power usage, as your PSU will degrade over time (~2% max power lost per year) due to capacitor degradation, different tasks tax it differently (games vs GPGPU), and you could upgrade your processor or overclock it or the GPU to remove a bottleneck which will cause higher power consumption. The easiest way is to add up the number of PCIe 8 pin (150w) and 6 pin (75w) power connectors, add 75w from the PCIe slot, and you get the maximum amount of power it could possibly draw, add 200w for all other components (to allow for a stock 125w processor with an overclock plus all other hardware). Once you get that number, double it, and that's the size of the PSU you should get.

Or just get a 750w PSU, that is sufficient for any single GPU setup.

-------------------------
ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 12/16/2013 06:07 AM
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samuelmorris
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A good 500W PSU will be fine for that card. Whether that particular 500W PSU is 'good' is up for debate.

I ran an overclocked & overvolted Q9550 and an HD4870X2 along with three mechanical hard disks (one of them a 37GB WD Raptor), and the full load in games that scaled well was about 390W out of the PSU. By all accounts the load used by the R9 290X seems fairly similar to the HD4870X2 so with a standard 290 you will definitely be fine, as Haswell CPUs use far less power than my old overclocked Core 2 did.

In practice I doubt you'll be drawing much more than 300-320W out of the PSU in games. I'm not sure I'd run a litecoin miner with that card on that PSU but general usage should be fine. 



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i5 750 @ 4.12Ghz, Gigabyte P55A-UD4, 2x XFX HD6970, 12GB Corsair XMS3, 40GB X25-V, WD1001FALS, HD753LJ, Zalman ZM850-HP, Coolermaster HAF932.
 12/16/2013 06:24 AM
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zipsi
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No no no, this card consumes roughly 300w under full load, an i7 under heavy load consumes additional 150w+ (on stock clocks), around 130w for an i5, then come HDD's with 7-10 watts each, fans, ram, other components, you risk blowing up even a quality 500w psu. Even under full load the power consumption shouldn't exceed 80% of what the psu can provide to give it 'breathing space'.



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Intel I7 3770K @ 4.5ghz, Cooler Master Hyper 212 Evo, Gigabyte Z77X-UD3H, Gigabyte HD7970 ghz edition, 4x4gb Kingston HyperX Beast 2133mhz, Seasonic Platinum 860, Samsung 840 Pro 256gb, OCZ Vertex 4 128gb, WD Black 1TB, WD Green 3TB+1.5TB, ASUS Xonar Essence ST, ASUS VE278Q, Windows 3.11
 12/16/2013 06:42 AM
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samuelmorris
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Those figures are entirely wrong.

An R9 290 (remember, he did not say 290X) is going to be using 250W at max load (and I do mean max), Haswell CPUs are 80W max (No Core i5 has ever had a 130W TDP, only a limited number of i7s), and the other components are very unlikely to be more than 50W between them. Even in a worst case scenario where everything is using 100% power load (which never happens in practice unless you run a PSU stress test), you're looking at 380W. That's below the 80% figure for the PSU even in a burn test scenario, let alone real world usage.

 

I'm all for ensuring you have a good enough PSU, but the people who buy near-kilowatt PSUs for single graphics cards should stick to wasting their own money, not other people's. PSU quality is far more important than raw wattage anyway.



-------------------------
i5 750 @ 4.12Ghz, Gigabyte P55A-UD4, 2x XFX HD6970, 12GB Corsair XMS3, 40GB X25-V, WD1001FALS, HD753LJ, Zalman ZM850-HP, Coolermaster HAF932.
 12/16/2013 09:52 AM
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black_zion
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Might want to read up on how Intel rates their TDPs, it's not the same as AMD, so zipsi is quite correct, and he would know because he kinda has one. The difference in price for a quality power supply such as the SeaSonic SS-520FL2 and SS-760XP2 (520w and 760w, respectively) is only $40 ($134.99 vs $174.99) which is much cheaper than having to replace it when, say, he decides to buy a second card, or upgrade his hardware. Also, a power supply is most efficient at 50% load, and a PC with a single upper end graphics card and a fast AMD or Intel processor will pull between 350-450w when going full tilt (mine pulls 400w under full stress according to my UPS, between 350-375w under nominal gaming load), so having a 750w power supply is not a waste of money. I can think of many worse things to spend $40 on...

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ASUS Sabertooth 990FX/Gen3 R2, FX-8350 w/ Corsair H60, 8 GiB G.SKILL RipjawsX DDR3-2133, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64
 12/16/2013 10:25 AM
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samuelmorris
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Your post validates what I said entirely. The FX-8350 and 990FX combination draws almost double what an i7 4670K draws (let alone the equivalent i5), and even then, 350-375W on the UPS means 320-350W out of the PSU at 80plus gold standard. You have to remember, that 80W for Haswell includes pretty much everything, not just the CPU, but the (albeit often redundant) IGP, memory controller, PCIe controller, and now with Haswell even the voltage regulators. With the FX, you have the higher TDP to begin with, and then all those anciliaries on top. The HD7970 does draw less than the R9 290, but it's not going to be any more of a difference than your FX-8350 is versus his CPU.

 

The final answer to this is going to be heat. If the OP's case is not that well ventilated and the PSU is allowed to get hot, he should probably upgrade it, or his cooling. If it's cooled well though, I don't imagine it's going to be overly stressed.



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i5 750 @ 4.12Ghz, Gigabyte P55A-UD4, 2x XFX HD6970, 12GB Corsair XMS3, 40GB X25-V, WD1001FALS, HD753LJ, Zalman ZM850-HP, Coolermaster HAF932.
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