XFX XTR 550W for overclocked gtx 970 and 4690k

AV3Nguyen · May 8, 2015

Hello, my system:
CPU: i5-4690k
Cooler: cooler master hyper 212+ with extra fan for push/pull
GPU: MSI gaming gtx 970
Mobo: ASRock Z97 Extreme4
RAM: 2x4gb g.skill sniper DDR3-1600
Storage: 1Tb HDD, 500gb sshd, 120gb ssd
Case fans: 3 120mm blue led

The PSU in question is an XFX XTR 550W 80+ gold. I plan to overclock both the CPU and GPU with voltage increases. Will my PSU cope? If not, what is a good alternative?

Thanks in advance!

Joseph DeGarmo · May 8, 2015

Mild overclocks are fine, but get at least a 650w PSU just to be safe.

holyrage · May 8, 2015

it will be fine CPU TDP can go above 200watts if u go with something like 1.3V @ 5GHZ which i dont see happening with a 212 evo so you will be fine

Deleted member 217926 · May 8, 2015

You can overclock as much as you want with that power supply. You only need 700 watts for 2 x GTX 970s in Sli and 500 watts for a single card based on RealHardTechX recommendations and they leave plenty of headroom for lower quality power supplies and overclocking.

http://www.realhardtechx.com/index_archivos/Page362.htm

ingtar33 · May 8, 2015

understand that TDP does not stand for "Total Drawn Power"; it's THERMAL DESIGN POWER/POINT, it's a heatsink classification. NOT an indication of how much power your gpu will pull. For many gpus and cpus the TDP does come pretty close to indicating max power needed for the chip. but for many others (especially overclocked) chips it has no relationship to reality at all.

the gtx970 will draw up to 270-300W without an overclock from time to time despite it's 145W TDP. with an overclock it will draw a lot of power. My gtx970 can draw up to a constant 220W of power when under a serious overclock (with spikes up to 300W).

and we know an i5 or i7 seriously overclocked can draw up to 200W of power (probably a bit less... depends on the chip and overclock)

so i'd say 650W would be the min for your build when overclocking. if you plan to keep everything stock 500W would probably be the min i'd recommend using.

Deleted member 217926 · May 8, 2015

ingtar33 :

I do believe you are confusing system power draw with GPU power draw. At least unless you know something Anandtech, guru3d and bit-tech doesn't.

http://www.anandtech.com/show/8568/the-geforce-gtx-970-review-feat-evga/15

http://www.guru3d.com/articles-pages/nvidia-geforce-gtx-970-and-980-reference-review,7.html

http://www.bit-tech.net/hardware/graphics/2014/09/19/nvidia-geforce-gtx-970-review/11

You have tested your system both with and without the 970 with a load meter to prove it can draw 300 watts?

AV3Nguyen · May 8, 2015

Thanks for all the replies. I'm going to stick with 550w. Based off anort3's references, an overclocked system shouldn't use more than 450w at absolute worst.

ingtar33 · May 8, 2015

you aren't listening. I'm not talking about "average power draw under load"

I'm talking about max total power the card will draw at any one moment. The 960/970/980 series gpus all have massive power "spikes" (actually the 780/780ti did the same thing, only no where near as drastic) where they draw for moments a heck of a lot more power then they draw "most" of the rest of the time. Yes, the average draw of my system is right in line with those websites. (well accounting for my cpu and fans anyway) However if you poll the system power draw under strain every millisecond as opposed to every second or an average of every few seconds, you'll see some pretty significant spikes in power draw coming from the 970.

My own will draw up to around 270W for brief moments at stock, while spending the rest of the time hovering around 150W... when overclocked it will hover around 190W-220W power draw, with spikes up to 300W (or close enough, i think the highest i saw was roughly 293W)

I'm not besmirching the 970. I love this card. it's a great card. I'm just trying to give someone some good advice on a psu to purchase.

holyrage · May 8, 2015

seriously Jesus a 970 sucking as much power as Hawaii chips bro you high?

a 7950 with 2X6 pins dosnt suck that much power at most it will draw 140~ lol

ingtar33 · May 9, 2015

holyrage :

yet again. it does NOT suck as much as a hawaii. But it does for fractions of a second from time to time. And i'm not high. This is standard behavior for these cards.

holyrage · May 9, 2015

they wont peak that high these cards are designed not to peak to insane high wattage

unless you Run Furmark the card will stay at 185watts or bellow( when Oc'ed)

AV3Nguyen · May 9, 2015

http://www.tweaktown.com/reviews/6022/xfx-xtr-550-watt-80-plus-gold-power-supply-review/index.html
according to this review, my psu can handle 550W continuous output at 50C. I'm not sure if even power spikes from the system can reach that. Plus, I assume the psu can output greater than 550W, not continuously of course, if needed.

Deleted member 217926 · May 9, 2015

It's fine. Not a single major review site has felt the need to go back and revise their power recommendations with any of the Maxwell based GPUs. That tells you there are no issues.

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