Can I replace a radeon 5750 with a gtx 460?

[patfactorx]

I am not sure on the power supply of my Gateway computer and I am wondering if I could actually swap up or if the power supply wouldn't be able to handle it.

 

[17seconds]

Both the 5750 and GTX460 require a minimum 450 watt power supply. If you can run a 5750, then you can also run a GTX460.

 

[vilenjan]

so very wrong, its not even funny.
5750 has a TDP of 90W

460GTX has a TDP of around 150W (768 a little less, 1gb a little more). and if u pick up one of the OCed cards than its will be more than 150 for sure.

 

[17seconds]

so very wrong, its not even funny.
5750 has a TDP of 90W

460GTX has a TDP of around 150W (768 a little less, 1gb a little more). and if u pick up one of the OCed cards than its will be more than 150 for sure.

So you are looking at TDP instead of the minimum power supply requirement listed on the manufacuturers website... like I did? I'm glad you are here to clear things up.

"450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended (600 Watt and two 6-pin connectors for ATI CrossFireX™ technology in dual mode)"
http://www.amd.com/us/products/desktop/graphics/ati-radeon-hd-5000/hd-5750/Pages/ati-radeon-hd-5750-overview.aspx#3

"Minimum Recommended System Power (W) 450 W"
http://www.nvidia.com/object/product-geforce-gtx-460-us.html

vilenjan, if you can't give helpful, knowledgable feedback, without throwing out insults, don't waste our time.

 

[nforce4max]

I don't look at "recommended" psu figures as they often prove to be the stumbling block for many thinking that their units meet the needs regardless of the performance and quality of the actual unit. If Gateway used the same brand of supplies as Dell and HP chances are that it is a quality unit even if it were inefficient it would still be able to meet the needs of the system.

Take off the side panel and look at the amp ratings of the 12v rails on the unit (note that some units have only one 12v rail) and post the rest of the system specs.

At idle the GTX460 uses very little power and idles lower than previous generation gpus. However load figures are the problem.

 

[patfactorx]

The website says that my Gateway has a 300W power supply o-0

 

[nforce4max]

Well I am sad to say then that you are stuck with what you got unless you can prove or disprove what they had stated online by checking for your self (not there isn't software to tell you what psu you got <_<

The 5750 and 5770 don't use that much power at all so they do run on a quality 300w unit provided that the rest of the system is of low demand.

 

[jyjjy]

The recommend power supply numbers from the card manufacturer is about the last thing you should look at when trying to figure these things out. ATI's numbers are usually massively inflated. Nvidia's are usually semi-appropriate but you should always look at your power supply's actual power output on the +12v rail and the card's actual power usage which you can look up in any decent review of the card.
As for the HD5750 vs GTX 460 the 460 uses much more power; over twice as much on average. The HD5750 is likely the best card you can reasonable use on a 300w Gateway PSU. For anything better you will need to buy a replacement.

 

[patfactorx]

Best answer selected by patfactorx.