PSU

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Kebtiz

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The PSU W requirements would be based on peak requirements of each components added together wouldn't it? I am building a SLI desktop and the current power supply I am considering is only 630W.

Current Components I am planning on using:

XION XON-630P12N 630W ATX12V SLI Ready

2x Seagate Barracuda 7200.11 500GB 7200 RPM 32MB
2x BFG GeForce 9500 GT 1GB 128-bit PCI Express 2.0 - 350W PCI Express-compliant system power supply with a combined 12V current rating of 18A or more
AMD Phenom 9850 BLACK EDITION 2.5GHz - 1.20/1.25/1.30V 125W Thermal Power
MSI AM2+/AM2 NVIDIA nForce 750a SLI ATX AMD
OCZ Reaper HPC (2 x 2GB) SDRAM DDR2 1066 - 2.1v
COOLER MASTER 92mm Hyper TX2 CPU Cooler
 
I'm curious to find out how many think a single 8800GT would outperform a pair of 9500GT (s) in SLI. I don't know if you've already purchased these cards, if you haven't, it's something to think about.

In direct answer to your question, I think a high quality 500 Watt PSU would drive the system just fine. But you might want a few more watts in the tank, should you decide to upgrade further.

I'm not familiar with "Xion" PSUs, someone else might want to offer their conclusion on them.

With the hardware you describe, using only one 9500GT, a good 350 to 400 Watt PSU would do the job. So, if the Xion is a decent unit, it would be fine also.

The 84/8500 and 94/9500 series of cards aren't really high draw, but they're not really a gamer's best friend either. Their comfort zone is driving flat panel TVs in high-def, and they have HDCP to enable this.
 
The 8800GT costs nearly double, but if the performance is there I'd say its a winner, thanks for adding that. But you don't think the 9500 is a good choice for a gaming video card?

Some specs for convenience:

$86.88
Chipset Manufacturer NVIDIA
GPU GeForce 8600 GT
Core clock 540MHz
Stream Processors 32
Memory
Memory Clock 800MHz
Memory Size 1GB
Memory Interface 128-bit
Memory Type GDDR2

$99.99
Manufacturer NVIDIA
GPU GeForce 9500 GT
Core clock 550MHz
Stream Processors 16
Memory
Memory Clock 1400MHz
Memory Size 1GB
Memory Interface 128-bit
Memory Type GDDR2

$194.99
Chipset Manufacturer NVIDIA
GPU GeForce 8800 GT
Core clock 600MHz
Stream Processors 112
Memory
Memory Clock 1800MHz
Memory Size 1GB
Memory Interface 256-bit
Memory Type GDDR3

If the speeds of 9500 SLI'd and 1 88gt are similar even if 8800gt is slightly slower i would go that route simply for upgradability. (yes i just made up a word)
 
The 8800GT costs nearly double, but if the performance is there I'd say its a winner, thanks for adding that. But you don't think the 9500 is a good choice for a gaming video card?
The 9500GT is not an ideal choice for gaming. The good news is that the 8800GT that you list below is ridiculously overpriced in today's market. An 8800GT in today's market is worth about $120.00 to $150.00. 512 MBs of memory should be sufficient.
$194.99
Chipset Manufacturer NVIDIA
GPU GeForce 8800 GT
Core clock 600MHz
Stream Processors 112
Memory
Memory Clock 1800MHz
Memory Size 1GB
Memory Interface 256-bit
Memory Type GDDR3
If the speeds of 9500 SLI'd and 1 88gt are similar even if 8800gt is slightly slower i would go that route simply for upgradability. (yes i just made up a word)

You can always tell a made up word when using FF2.0 or above, since it will have the same redline under it that many of my "proprietary" words do.

Here's an Nvidia comparison page that is dumbed down to the point where I understand it. It may help you to choose wisely, as the saying goes.

http://www.nvidia.com/object/geforce_family.html
 
Ha, I've been that that site so many times, but I never scrolled down to see a nifty little comparison chart, thanks much again Captain =)

Actually, there isn't a big step up in price between 8800 and 9800 I think I am going to take the step.
 
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