Hello, well I have right now a Sapphire R9 270x and never had any problem with the gpu or my psu, I'll possibly sell it and then buy the XFX 280x card, but I'm not really sure if my PSU will be able to handle it, I already did some research and the power consumption numbers for this card are very varied, each review I read had different numbers, btw the R9 380 4GB is at the same price, so I could go with that one, what do you guys think?
600w PSU 80+ Bronze enough for XFX R9 280x?
- Thread starter MGP11
- Start date
- Apr 29, 2006
- 29,241
- 437
- 93,590
Which unit? They don't all output the same amount.
Speaking only in general terms, the 280x is a 250W card, while the 285/380 is a 150-175w card. 600W bronze unit's start at the high 4xxW output and top out around 550W or so. Depending on your CPU and the rest of your system, it might or might not work.
Speaking only in general terms, the 280x is a 250W card, while the 285/380 is a 150-175w card. 600W bronze unit's start at the high 4xxW output and top out around 550W or so. Depending on your CPU and the rest of your system, it might or might not work.
- Oct 30, 2004
- 32,255
- 14
- 99,960
http://www.guru3d.com/articles_pages/asus_radeon_r9_280x_top_review,8.html
I'd have no concern with say a Seasonic S12 Bronce 620 but for example would not use a Corsair CX600. It depends on the quality of the CPU which can not be determined w/o make and model number.
The 380x is a 280x with a slightly higher factory overclock, at same price always get latest generation.
I'd have no concern with say a Seasonic S12 Bronce 620 but for example would not use a Corsair CX600. It depends on the quality of the CPU which can not be determined w/o make and model number.
The 380x is a 280x with a slightly higher factory overclock, at same price always get latest generation.
bgunner
Judicious
- Feb 13, 2009
- 5,144
- 14
- 32,515
Actually the R9 280X will use up to 300W when pushed to max. Ether way you will need to get a PSU with a singe +12 volt rail because a multi rail PSU will not support them. For the AMD HD 7970/R9 280X I recommend a 750W PSU to ensure enough power for the GPU, CPU, Ram, HDD's/SSD's, Optical drive, case fans and any other USB devices you plug into the system.
- Oct 30, 2004
- 32,255
- 14
- 99,960
Multi rail will do just fine. The advantages of single vs multiple rails are a myth. The problem was never about a problem with single versus multiple rails but simply of a specific bonehead design of a particular multiple rail design
http://www.jonnyguru.com/forums/showthread.php?t=3990
Multiple rails will only be a problem if say a manufacturer decide to put all PCIE cable on just oine of the rails or a user reads on a forum that it is OK to use Molex to PCIE adapters and overloads one of the rails. That just "isn't done" outside of a bonehead manufacturer
As for power consumption, the 280c can hit peaks well above 300 watts.
Note that from a power supply standpoint that doesn't necessarily mean you have to account for 350 watts of load for the purposes of PSU selection. That's what capacitors are for. Also, that's using Furmark, gaming is about 100 watts less (247).....add 10% for overclocking.
However wide load swings can cause short voltage fluctuations and if you are looking for that last 10 MHz on your overclock, you might get tripped up. For 95% over Afterburner users, the difference is not worth noting.
http://www.tomshardware.com/reviews/power-supplies-101,4193-24.html
Of course, when you use the 75% figure and average consumption .... versus the brief spikes and 100% , you will very often get answers very close to one another.
http://www.jonnyguru.com/forums/showthread.php?t=3990
Multiple rails will only be a problem if say a manufacturer decide to put all PCIE cable on just oine of the rails or a user reads on a forum that it is OK to use Molex to PCIE adapters and overloads one of the rails. That just "isn't done" outside of a bonehead manufacturer
As for power consumption, the 280c can hit peaks well above 300 watts.
Note that from a power supply standpoint that doesn't necessarily mean you have to account for 350 watts of load for the purposes of PSU selection. That's what capacitors are for. Also, that's using Furmark, gaming is about 100 watts less (247).....add 10% for overclocking.
However wide load swings can cause short voltage fluctuations and if you are looking for that last 10 MHz on your overclock, you might get tripped up. For 95% over Afterburner users, the difference is not worth noting.
http://www.tomshardware.com/reviews/power-supplies-101,4193-24.html
Of course, when you use the 75% figure and average consumption .... versus the brief spikes and 100% , you will very often get answers very close to one another.
- Apr 29, 2006
- 29,241
- 437
- 93,590
Almost. I thought the same thing, but that's with the 390, 390X, etc. The 380 is the 285. I think the clocks get a boost, but not by much. The 380X isn't out yet, and we haven't ever seen it. When the 285 came out they left some parts disabled, and the 380X re-enables them. I had glossed over that the 285 wasn't a complete chip but someone was nice enough to point that out to me.
http://www.tomshardware.com/reviews/amd-radeon-r9-285-tonga,3925.html
We really need to know what PSU you are using MGP11. It's the only way to know what we are dealing with.
Suzuki@1473780084@1473780163
Dignified
- Mar 8, 2015
- 5,283
- 1
- 15,960
XFX 550 or similar is all you'll need. A 280x system won't even reach 400W, unless it's measured from the wall, which are false numbers. It's an AMD card, but really people?
bgunner
Judicious
- Feb 13, 2009
- 5,144
- 14
- 32,515
JackNaylorPE :
Multi rail will do just fine. The advantages of single vs multiple rails are a myth. The problem was never about a problem with single versus multiple rails but simply of a specific bonehead design of a particular multiple rail design
http://www.jonnyguru.com/forums/showthread.php?t=3990
Multiple rails will only be a problem if say a manufacturer decide to put all PCIE cable on just oine of the rails or a user reads on a forum that it is OK to use Molex to PCIE adapters and overloads one of the rails. That just "isn't done" outside of a bonehead manufacturer
As for power consumption, the 280c can hit peaks well above 300 watts.
Note that from a power supply standpoint that doesn't necessarily mean you have to account for 350 watts of load for the purposes of PSU selection. That's what capacitors are for. Also, that's using Furmark, gaming is about 100 watts less (247).....add 10% for overclocking.
However wide load swings can cause short voltage fluctuations and if you are looking for that last 10 MHz on your overclock, you might get tripped up. For 95% over Afterburner users, the difference is not worth noting.
http://www.tomshardware.com/reviews/power-supplies-101,4193-24.html
Of course, when you use the 75% figure and average consumption .... versus the brief spikes and 100% , you will very often get answers very close to one another.
http://www.jonnyguru.com/forums/showthread.php?t=3990
Multiple rails will only be a problem if say a manufacturer decide to put all PCIE cable on just oine of the rails or a user reads on a forum that it is OK to use Molex to PCIE adapters and overloads one of the rails. That just "isn't done" outside of a bonehead manufacturer
As for power consumption, the 280c can hit peaks well above 300 watts.
Note that from a power supply standpoint that doesn't necessarily mean you have to account for 350 watts of load for the purposes of PSU selection. That's what capacitors are for. Also, that's using Furmark, gaming is about 100 watts less (247).....add 10% for overclocking.
However wide load swings can cause short voltage fluctuations and if you are looking for that last 10 MHz on your overclock, you might get tripped up. For 95% over Afterburner users, the difference is not worth noting.
http://www.tomshardware.com/reviews/power-supplies-101,4193-24.html
Of course, when you use the 75% figure and average consumption .... versus the brief spikes and 100% , you will very often get answers very close to one another.
The multi-rail does matter, this I assure you on. Here is a real world example EVGA Supernova 750Wg Multi rail PSU ( http://www.newegg.com/Product/Product.aspx?Item=N82E16817438027 ) could not power an Asus R9 280 OCed. ( https://www.asus.com/Graphics-Cards/R9280DC2T3GD5/ ) As soon as it was Overclocked the PSU shut down due to the draw amount on the +12V rail.
Now my single rail Seasonic X850W PSU was able to power that card OCed and a HD 7970 OCed at the same time with the rest of the system being OCed. Real world makes the proof of weather or not the Amps on the +12V rail are enough to power the cards. The multi rail PSU's can not put enough amps though the PCI-e connector/s to power power hungry cards. I even tried only using one plug per PCI-e wire hoping to get 2 rails which still did not work.
Single rail and multi rail issues do exist. EVGA PSU tested good and so did the GPU test good. On this one jack I just have to disagree with you on.
bgunner
Judicious
- Feb 13, 2009
- 5,144
- 14
- 32,515
While Jonnyguru is usually the go to for testing PSU's and are very good at it, It makes me wonder if they tested this type of configuration with a Multi-rail PSU. I should add that the EVGA PSU could power my XFX HD 7970 OCed with out issues just not the more power hungry Asus R9 280 OCed.
I'm willing to bet that your PSU is a single rail though if it is powering a R9 280 @ 450W. Curiosity though, what is the Amps on your +12 volt rail for the 450W PSU?
Edit: edited for spelling and the fact I have a 7970 and not a 7070 :/
- Apr 29, 2006
- 29,241
- 437
- 93,590
37A, 3A more then my old Antec 500W unit. Tech is great. And yes, I think it is a single rail unit though I honestly don't care about single vs multi. I agree with JG, most of the time it doesn't matter and the only time it does is for those PSUs rated 1kW+ Last thing you want is a short somewhere and you send 100A down there and start welding.
The big thing people were mistaken about with multi rail PSUs was the idea of "trapped" power. That rail one had a max of 18 or 20A and that much power was going down that rail. Meaning there was less amps available for 12v2. This of course is silly for 99% of the PSUs out there and they (nearly) all have a single 12V source. I did have an odd thing happen with my 280 and an Antec 750W PSU when I tried to power the card with a single strand of cables. Wouldn't boot. I'm assuming it didn't like having one of it's 12v rails loaded that much while others sat at zero. When I used two strands of cables it worked fine. I don't know what was going on with your system, an OC'd 7970 should draw more then an OC'd 7950.
The big thing people were mistaken about with multi rail PSUs was the idea of "trapped" power. That rail one had a max of 18 or 20A and that much power was going down that rail. Meaning there was less amps available for 12v2. This of course is silly for 99% of the PSUs out there and they (nearly) all have a single 12V source. I did have an odd thing happen with my 280 and an Antec 750W PSU when I tried to power the card with a single strand of cables. Wouldn't boot. I'm assuming it didn't like having one of it's 12v rails loaded that much while others sat at zero. When I used two strands of cables it worked fine. I don't know what was going on with your system, an OC'd 7970 should draw more then an OC'd 7950.
Hey guys thanks for all the replies, they all are really helpful and sorry for not answering earlier, I wasn't in the city.
My PSU is a tier 4, Aerocool Strike X, I know it's not the best but it gets the job done with my actual rig (FX 8320, MB M5A97 RE 2.0, 6 GB RAM, 2 Hdds Seagate Barracuda, DVD R/RW combo, and Sapphire R9 270x)
When I bought it, I only checked the 80+ certification and the max output current in the +12v rail which is "50A" and I didn't really investigate about all its components, because at that time I didn't think about my next upgrade.
Also I just realized that there's a huge difference between 280x and 270x individual power consumption, 280x is really power hungry.
My PSU is a tier 4, Aerocool Strike X, I know it's not the best but it gets the job done with my actual rig (FX 8320, MB M5A97 RE 2.0, 6 GB RAM, 2 Hdds Seagate Barracuda, DVD R/RW combo, and Sapphire R9 270x)
When I bought it, I only checked the 80+ certification and the max output current in the +12v rail which is "50A" and I didn't really investigate about all its components, because at that time I didn't think about my next upgrade.
Also I just realized that there's a huge difference between 280x and 270x individual power consumption, 280x is really power hungry.
bgunner
Judicious
- Feb 13, 2009
- 5,144
- 14
- 32,515
While I totally agree with the fact the 7970 should draw less than a 7950 there are 2 major differences in between the 2. First the R9 280's actually draw more than 7950's and because I got a bad OCing chip on my 7970 I can only get 35 MHz over stock (but get 300 MHz on memory) vs the this particular R9 280 can hit 1070 MHz well over 190 MHz over stock allowing for a major increase in draw, including a slight voltage bump to 1.35v, even though it has some of the shaders disabled, where my chip can't get a voltage bump.
These 2 items, EVGA PSU and ASUS R9 280, went into my sons PC which other than trying to OC the GPU runs flawlessly with an OCed FX 6150. I didn't take any stock in the Single rail versus Multi rail when I read all the literature on it till we built his system. Only after we ran into the PSU issue did I start believing that there was a difference.
These 2 items, EVGA PSU and ASUS R9 280, went into my sons PC which other than trying to OC the GPU runs flawlessly with an OCed FX 6150. I didn't take any stock in the Single rail versus Multi rail when I read all the literature on it till we built his system. Only after we ran into the PSU issue did I start believing that there was a difference.
- Apr 29, 2006
- 29,241
- 437
- 93,590
50A? That comes out to 600W on the 12V rail, which even 80+ gold units can barely do. Coupled with the low reputation for that PSU I'm guessing they are flat lying. (Or you misread it.)
Depending on models, there is only a rated difference of 75W between the 270x and the 280X. (175W vs 250W going from memory.) But because of the model PSU you have I wouldn't try it. That model is in my "do not let in the house" (I'm serious here, I won't even let it inside.) tier. Upgrade the PSU before the GPU.
Depending on models, there is only a rated difference of 75W between the 270x and the 280X. (175W vs 250W going from memory.) But because of the model PSU you have I wouldn't try it. That model is in my "do not let in the house" (I'm serious here, I won't even let it inside.) tier. Upgrade the PSU before the GPU.
bgunner
Judicious
- Feb 13, 2009
- 5,144
- 14
- 32,515
I agree that your PSU is not to be trusted due to quality issues. The 280x is rated for 250W like mentioned but if you get the boost versions it can hit higher due to higher clocks. You may want to consider swapping that PSU out and hanging on to is just as a spare for testing and getting a tier 2 or even tier 1 PSU for the high end equipment you are looking to have.
Latest posts
-
-
-
-
Question r9 390 a good budget option since rx 580s are overpriced?- Latest: jordanbuilds1
-
Facebook
Twitter
Instagram