5750 512mb versus 5770 1gb

balltillifall

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Here are the ATI recommended power supply requirements for the ATI Radeon HD 5770 and 5750 video cards that just became available:


450 Watt or greater power supply with one 75W 6-pin PCI Express® power connector recommended

600 Watt and two 75 watt 6-pin connectors for ATI CrossFireX™ [COLOR=blue ! important][COLOR=blue ! important]technology[/COLOR][/COLOR] in dual mode

I would not try it with a 300 watt PSU.
 

My Computer My Computer

At a glance

Vista 64 Ultimate, Windows 7 64 Ultimate, Ubu...i7 975 3.3 GHz Extreme (Factory OC'd to 3.6 GHz)18 Gb Tri-Channel 1066ATI 5970 2048 Mb
Computer Manufacturer/Model Number
DELL XPS Studio 435T
OS
Vista 64 Ultimate, Windows 7 64 Ultimate, Ubuntu 9.10
CPU
i7 975 3.3 GHz Extreme (Factory OC'd to 3.6 GHz)
Motherboard
DELL provided
Memory
18 Gb Tri-Channel 1066
Graphics Card(s)
ATI 5970 2048 Mb
Sound Card
X-Fi Extreme Gamer
Monitor(s) Displays
Vizio 37" HD-TV
Screen Resolution
1920 x 1080
Hard Drives
1.5 Tb HDD
1.5 Tb HDD
2.0 Tb Network Drive
512 Gb Crucial SSD
PSU
DELL Provided 475 watts
Case
DELL
Cooling
3 fans
Keyboard
Logitech Performance K350 Wireless
Mouse
Logitech Performance MX Wireless
Internet Speed
3 Mb up 750 Kb down
Other Info
Bamboo Fun Tablet, Belkin N+ Wireless router, Pioneer Dolby System Wireless Headphones, Bose 5.1 Dolby Surround Sound System, LifeCam VX 3000 Webcam, Blu-Ray/Hi Def DVD +RW combo and Blu-ray +RW,l 15 in 1 media card reader, Logitech Rumblepad 2, Hauppauge 2250 DTV Tuner with MS Media Center Remote

Laptop:Alienware M17x, Q9100 CPU, 8Gb RAM, 1920x1200 WUXGA LCD driven by 4870's in CrossFireX, Bl
I'd say yes, I have a 475 watt PSU and am running the XFX HD5870 1Gb XXX Edition w/o issue, it actually uses less power than the HD 4870 that was in it, just make sure the screw alignments and dimensions are the same and you're good to go.
 

My Computer My Computer

At a glance

Vista 64 Ultimate, Windows 7 64 Ultimate, Ubu...i7 975 3.3 GHz Extreme (Factory OC'd to 3.6 GHz)18 Gb Tri-Channel 1066ATI 5970 2048 Mb
Computer Manufacturer/Model Number
DELL XPS Studio 435T
OS
Vista 64 Ultimate, Windows 7 64 Ultimate, Ubuntu 9.10
CPU
i7 975 3.3 GHz Extreme (Factory OC'd to 3.6 GHz)
Motherboard
DELL provided
Memory
18 Gb Tri-Channel 1066
Graphics Card(s)
ATI 5970 2048 Mb
Sound Card
X-Fi Extreme Gamer
Monitor(s) Displays
Vizio 37" HD-TV
Screen Resolution
1920 x 1080
Hard Drives
1.5 Tb HDD
1.5 Tb HDD
2.0 Tb Network Drive
512 Gb Crucial SSD
PSU
DELL Provided 475 watts
Case
DELL
Cooling
3 fans
Keyboard
Logitech Performance K350 Wireless
Mouse
Logitech Performance MX Wireless
Internet Speed
3 Mb up 750 Kb down
Other Info
Bamboo Fun Tablet, Belkin N+ Wireless router, Pioneer Dolby System Wireless Headphones, Bose 5.1 Dolby Surround Sound System, LifeCam VX 3000 Webcam, Blu-Ray/Hi Def DVD +RW combo and Blu-ray +RW,l 15 in 1 media card reader, Logitech Rumblepad 2, Hauppauge 2250 DTV Tuner with MS Media Center Remote

Laptop:Alienware M17x, Q9100 CPU, 8Gb RAM, 1920x1200 WUXGA LCD driven by 4870's in CrossFireX, Bl
...
 
Last edited:

My Computer My Computer

At a glance

windows 7AMD Phenom II X4 9658 gigs GskillGTX470
Computer Manufacturer/Model Number
custom
OS
windows 7
CPU
AMD Phenom II X4 965
Motherboard
M4N98TD EVO
Memory
8 gigs Gskill
Graphics Card(s)
GTX470
Sound Card
sound blaster
Monitor(s) Displays
2x hpw1907
Hard Drives
2X WD750
PSU
1100w rosewill
Case
Thermaltake Tsunami VA3000BWA Black Aluminum
Keyboard
g11
Mouse
logitech G7
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